HPI Hellfise SS user manual

7/21/2019 HPI Hellfise SS user manual

1/441200

Instruction Manual

En

High Performance RTR 1/8th Monster Truck

En JpHellfire RTR


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Page 2

To prevent any serious personal injury and/or damage to property, please be responsible when operating all remote controlledmodels. Extra attention is called for when operating any glow fuel powered model. These models can exceed speeds of 30

m.p.h. and use highly poisonous and flammable fuels.

Before RunningPlease read manual (with parent, guardian or a responsible adult if necessary).

While OperatingPlease do not run on a public street, this could cause serious accidents, personal injuries and/or property damage.

Please do not run near pedestrians or small children.Please do not run in small or confined areas.

Before OperatingMake sure that all screws and nuts are properly tightened.

Always use fresh batteries for your transmitter and receiver to avoid losing control of the model.Make sure no one else is using the same radio frequency as you are using.Please confirm the neutral throttle position.

After RunningShut off engine first, then turn off receiver switch and turn off transmitter last.

After running Hellfi re RTR, it is necessary to perform routine maintenance. Failure to do this can result in increased wear and damage to the engine and chassis.

Heat, Fire, and Fuel Safety Never use petrol in a glow engine. Use glow fuel specifically designed for model car engines. Do not run near open flames or smoke while running your model or while handling fuel. Always store fuel in a well ventilated place, away from heating devices, open flames, direct sunl ight , or batteries. Keep glow fuel away from chi ldren. Glow fuel is flammable and poisonous. Glow fuel powered model engines emit poisonous vapors and gasses. These vapors irritate eyes and can be highly dangerous to your health. Be aware that some parts will be hot after operation. Do not touch the exhaust or the engine until they have cooled.

Thank you

Thank you for selecting the HPI Racing Hellfire RTR! This kit is designed to be fun to drive and uses top qualityparts for durability and performance. The instruction manual you are reading was designed to be easy to follow yetthorough in its explanations. HPI Racing wants you to enjoy driving your new Hellfire RTR. If you come across anyproblems or need some help getting through a step, give us a call and we will do our very best to help you. You canalso contact us on the internet at www.hpieurope.com.

Cautions


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Page 3

Contents

PageContents Section

Thank you 2 Contents 3

Overview 41

Start Up Guide 2

6

16Maintenance 3

Setup Guide 4 30

38Exploded View 5

Preparation for Running 62 - 1

Transmitter Preparation 72 - 2 Glow Plug Igniter Preparation 72 - 3

How To Control R/C Models 82 - 4 Linkage Setup 92 - 5 Starting Engine and Break In 102 - 6 Engine Tuning After Break In 122 - 7 Optional Tuning 132 - 8 Carburetor Factory Setting 142 - 9 Glow Plug 142 - 10 Troubleshooting 152 - 11

Maintenance Chart 163 - 1 Chassis 173 - 2 Wheel 173 - 3

Air Fi lter 183 - 4 Radio 193 - 5 Clutch 203 - 6

Front and Rear Differential 223 - 8 Center Gear Box 233 - 9

Shock 253 - 11

Engine 283 - 13

Setup Chart 304 - 1 Ride Height 304 - 2

Camber 314 - 3 Droop 314 - 4 Sway Bar 324 - 5 Clutch 324 - 6 Shock Absorbers 334 - 7 Shock Mounting Position 344 - 8 Camber Link Location 344 - 9 Kick Up 354 - 10 Caster Angle 354 - 11 Steering 354 - 12 Front Toe 364 - 13 Front Inboard Angle 364 - 14

Rear Toe Angle 364 - 15 Rear Anti Squat 374 - 16

Wheelbase 374 - 17 Differentials 374 - 18

Gear Box / Differential 213 - 7

Center Differential 243 - 10

Servo 263 - 12

Chassis 385 - 1 Transmission 395 - 2 Front 405 - 3 Rear 415 - 4 Spare Parts Lis t 425 - 5


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Page 4

Screwdriver

AA Alkaline Batteries

Recommended Nitro Content

Transmitter

Z150Antenna Pipe

Spare Parts Bag

2013Receiver Battery Pack 6.0 Volt

Compatible Charger

2036 (US)2037 (EU 2Pin)2038 (EU 3Pin)2039 (JP)

R/C Car

Instruction Manual

5.5mm

5.5mm

3.6mm

7mm

Z950Cross Wrench

Allen Wrench

70332Glow Plug Wrench

8mm

17mm

18mm

1.5mm

2.0mm

2.5mm

3.0mm

9062 (US,EU)9063 (JP)Nitro Car Cleane

Thread Lock

30035 (JP)Instant Cement Z190

Air Fil ter Oil

39014 (JP)Oil Spray

Needle Nosed Pliers

Z164Grease

Components

Included Items

Equipment Needed

Necessary for maintenance

86588Multi Wrench (M18/M5.5/M3.6)

74151HPI Racing Temp Gun 74318/74348 (US)

38704/38705 (JP)Glow Fuel

9067Fuel Bottle

20% - 25%

1.5mm

2mm

2.5mm

3mm

x2

x8

1Overview

Rag

Brush

74104 (EU 3Pin)74105 (US)74106 (EU 2Pin)74107 (JP)Glow Plug Igniter


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Page 5

Chassis Details

Engine Details

Caution

Receiver Switch

Receiver Antenna

Radio Box

Fuel Tank

Shock

Drive Shaft

Wheel Hub

Front Gear Box

Engine

Brake

Center Gear Box

Glow Plug

Air Filter

Fuel Filter

Fuel Tank Cap

Fuel Tank

Pull Starter

Carburetor

Clutch

Exhaust Header

Exhaust Pipe

Pull Starter

Rear Gear Box

Sway Bar

Do not run on public streets or highways.This could cause serious accidents,personal injur ies, and/or property damage.

Make sure everyone is using differentfrequency (crystals) when driving togetherin the same area.

OFF

ON


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Page 6

Start Up Guide

After charging d isconnect the battery and unplu g the charger from wall.

Use included charger only for included receiver pack.Do not use any other battery.Charge time for discharged battery: 4 hours.Do not charge battery for longer than 4 hours. This will cause overheating and battery damage.Do not charge other batteries with this charger. Serious damage orinjury can occur.Keep battery out of reach of chil dren.

Keep battery away from water.

Battery comes installed in the chassis.Please unplug and remove before charging.

Connect and install receiver pack, then uncoil antenna wire, and pullantenna wire through hole in battery cover. Secure the battery cover andinstall antenna pipe.

Charge time 4 hours.

Compatible Charger

Plug into a wall outlet

Preparation for Running

Body Removal

Receiver Battery Charging

Receiver Battery Installation

Receiver Battery Removal

75106

75106

Attention

2-1

2 Please read the instructions before running.

Optional Charger

HB70452GT Escape Charger

For extended running and less down time, werecommend HB70452 GT Escape Charger.

This charger is powered by a standard 12V lightersocket.This charger designed for Ni-MH battery.

12V DC power source necessary.Two batteries can be charged atthe same time.

Z150

Z150

6122




2036 (US)2037 (EU 2Pin)2038 (EU 3Pin)2039 (JP)


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Caution

Page 7

You must charge before use.

Remove glow plug igniter as soon as the engine is running .Leaving it connected will d rain the battery.

Glow plug igniter is neccesary for starting nitro engine.

These items are not included with your kit. They must bepurchased separately. Follow the instructions included withyour glow plug igniter and charger. If the glow plug igniter is notfully charged, the engine will not start.

AA Alkaline Batteries

8xDo not mix batteries ofdifferent ages or types.

Antenna

Extend the antenna to the maximumlength for best performance.

Open battery cover at the bottom of transmitter.

Install batteries. Follow the direction o f batteriesdesignated in the inside of battery box.

Steering Wheel

To be used forsteering operation.

Throttle trigger

To be used for throttle operation.

AM Transmi tter Crystal (TX)

The crystal can be replaced to change frequencies.Note: You must also change receiver crystals!

Do not use FM crystals

Steering Trim

To be used for t rimming the steeringoperation.

Throttle Trim

To be used for trimming the throttleoperation.

Steering Dual Rate

Battery Cover

To be used to adjust steering servorate and range.

Horizontal line shows50% position.

Servo Factory Settings

Battery Level Indicator

Power Switch

Reverse Switch

Good Batteries

Low Batteries

AM Transmitter c ryst al (TX)

AM Receiver crys tal (RX)

Forward

Brake

Stop (Neutral)

1

1

2

3

3

2

Glow Plug Igniter

Compatible Charger

Transmit ter Preparation2-2

Glow Plug Igniter Preparation2-3

Attention

Do not adjust more than 50% or you willdamage the steering servo.

50%

Transmitter Battery Installation

ON

OFF

Straight (Neutral)

Right turn

Left turn

74104 (EU 3Pin)74105 (US)74106 (EU 2Pin)

74107 (JP)Glow Plug Igniter


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ON

Page 8

Extend the antenna

Forward

Forward

Brake

Brake

Stop (Neutral)

Stop (Neutral)

Straight (Neutral)

Straight (Neutral)

Right turn

Left turn

How To Control R/C Models

1

2

3

Retract the antenna

32

1

Make sure no one else is using the same radio frequency as you are using. Check the radiosystem and range before every driving session. To properly check the range, have a friend holdthe truck with the engine off and walk to the farthest distance that you plan to operate yourmodel. Operate the controls to make sure the model responds correctly. Do not operate themodel if there is any prob lem with the radio system. If you swi tch on the R/C car first before thetransmitter, you may lose control of the R/C car.

If you switch o ff the transmitter first before the R/C car, you may lose control of the R/C car.

Turning the transmitter wheel left and right will make thefront tires of the car do the same. Turning the wheel asmall amount will make the model perform a wide turn.Turning the wheel a large amount will make the modelperform a sharp turn.

Pull the throttle to drive forward and press it away forbrakes. The more you pul l the throt tle, the faster the carwill move forward.

OFF

OFF

ON

ON

Right turn

Left turn

Activating R/C Unit

Turning R/C Unit Off

Turn on transmitter fir st, then turn on receiver.

Turn off receiver first, then turn off transmitter.

Throttle Trigger

Steering Wheel

2-4

Check Max. Range

Transmitter Operation


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1mm (0.04")

Horizontal line shows50% position.

Page 9

Linkage Setup

Trim adjusts neutral position o f servo.Make adjustments with the engine off.

Remove air fi lter to adjust thro ttle linkage. After setup is complete, reinstall the air fil ter. See Section 3-4.

3-4

Turn throttle trim little by little and adjust rods as shown.

Pull full throttle.Make sure the carburetor is open.

Push trigger to the full brake position.Try pushing the car to make sure thebrake works.

Brake Adjustment Dial

Brake Adjustment Dial

Rear Brake Adjustment Dial

Carburetor

Carburetor

Carburetor

Throttle Servo

Make sure servo arm isparallel to servo case.

More Braking

Less Braking

Turn steering trim to set tires in completely centered position.

If throttle linkage is not set up correctly the car may lose control afterthe engine is started.

Important

No brake drag at neutral.

Make sure there is no brake drag at neutral.

Setting Full Throttle

Setting Full Brake

Optional Throttle Linkage Setup

Steering Trim Setup

Throttle Linkage Setup

Important

Important

2-5

Open

Adj ust until ful l open.

Front Brake Adjustment Dial

Steering Dual Rate

Do not adjust more than 50%or you will damage thesteering servo.

50%

Steering trim

Throttle trim


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ON

3

Page 10

Keep the wheels off the ground.

These instructions wi ll explain the running procedure, how to prepare the car, turn on radio equipment, start the engine, break in the engine,shut off the engine, and shut off the radio equipment. When starting the engine for the first time, you must perform the break in procedure.Make sure no one is using the same frequency. Turn on transmitter first and receiver second. If you turn on the receiver first, it can cause youto lose contro l of the car.

Step 1

Step 2

Step 3

Step 4

Preparation for engine start

Fill Fuel Tank

Turn on Radio System

Priming Engine

Floodedengine

Fill the tank completely with fuel. Use only 20 to 25%nitro content fuel. Use high quality model car fuel only.Using non-car fuels could void your warranty.

Make sure no one is using the same frequency. Turn on transmitter fir st, then turnon receiver. Check the thrott le and steering functions and check the radio rangebefore starting engine. If you switch on the R/C car first before the transmitter,you may lose control o f the R/C car.

To prime the engine, use your finger to cover the exhaust tip. Pull the starter cordseveral times until fuel reaches the carburetor and no bubbles are seen. Never pull thestarter cord more than 30cm (12) max as it wil l damage the starter.

Starting Engine and Break In

Remove the glow plug and pull the startercord several times to remove excess fuel.Reinstall the glow plug .

If there is too much fuel in the cylinder,the engine will not start.Follow the step below to remove excessfuel from the cylinder.

Extend the antenna

1

2

ON

ON

NO!

12 30cm MAX

OK!

Recommended Nitro Content

74318/74348 (US)

38704/38705 (JP)Glow Fuel

20% - 25%

2-6

70332


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Page 11

Break In

Engine Shut Off

Use a Rag Pinch the Fuel Line

Turning R/C Unit Off

Turn off receiver first, then turn off t ransmitter.

Use a rag to cover the exhaust tip. Thiswill stop the engine. Be careful! Theexhaust is extremely hot so be sure touse a thick rag.

In extreme cases or emergenciesyou can pinch the fuel line to stopthe flow of fuel to the carb.

HPI engines will feel tigh t at the top of their s troke when they are new or when they have not reachedtheir normal operating temperatures. The piston and cylinder sleeves are designed to achieve proper

running tolerances when they are properly broken in and are operating at the correct temperature. Newengines need a break in period of about 3 to 4 tanks of fuel before they can be run at full throttle, if not the

engine could be damaged.Break in should be performed on a flat level surface.

Glow Plug and Starter

Attach the glow igni ter to the glow plug. Start the engine by pull ing the star ter cord inshort pul ls (no longer than 12max). Remove the glow ign iter as soon as the engine isrunning.Remove glow plug igniter as soon as the engine is running. If the glow plug igniter isleft connected while the engine is running, it will drain the battery and damage the glowplug.

The engine must never be run without the air filter in p lace.

Attention

New engines need a break in period of about 3 to 4 tanks of fuel beforethey can be run at full thrott le, if not the engine could be damaged.

If the air filt er falls off, you must stop the engine immediately.

Attention 20 (6M)

Step 5

Step 6

Step 7

Step 8

1

After the engine starts , let it run with the wheels off the ground for one tank of fuel.After the first tank, drive the car in a circle at half throttle for two tanks of fuel.

2

If you switch off the transmitter first before the R/C car, you may lose control of the R/C car.

1

OFF

2

OFFRetract the antenna

3

12 30cm MAX

Rag


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Step X

Step 1

Step 2

Step 3

Step 4

2-7

High Speed Needle

2 1/2 turn MAX clockwisefrom Groove

Use screwdriver to adjusthigh speed needle.

Mid Range Needle

Low Speed Needle

Idle Adjustment Screw

Pull Starter

Exhaust Outlet

Crankcase

Glow Plug

Heat Sink

Carburetor

The carburetor is set up from the factory for break in (2-9). After breakin the carburetor must be tuned for high performance running. 2-9

Engine Tuning After Break in

Read this section carefully: Failure to follow these tuning steps couldresult in damage to your engine, and void your warranty!

Important

Engine Features Carburetor Features

Tuning for Optimum Performance

Fuel Mixture Tuning Tip

Caution

2 1/2 turnMAX

Step 1

Step X

Step X

Step 4

Step 1 Step 4

Turn the high speed needle clockwise in 1/8 turnincrementsto lean out the fuel mixture forincreased top speed and throttle performance.Drive the car to notice changes in speed andthrottle response.

Continue Tuning:Continue leaning the carb in Clockwise 1/8 turnincrements. (Maximum of 2 1/2 turns from flus h.)

STOP Tuning:Stop tuning and go to if your engine shows

any of the following signs. (Engine is running too lean.)

At full throttle, there is no smokefrom the exhaust.

The engine hesitates or bogs.Reduced top speed and loss of power.

OverheatingTemperatures above 250F (120C)at the glow plug.

If your engine is running lean, turn the needlecounter clockwise 1/4 turn to richen the fuelmixture and repeat.

Page 12

High Speed Needle

Safe Range

250F(120C)

230F(110C)

210F(99C)

190F(90C)

Danger

Break in

Attention

74151HPI Racing Temp Gun

More Fuel = Rich

Less Fuel = Lean

Fuel Mixture Tuning

Engine Temperature

More Fuel = Rich

Rich Fuel MixtureA slightly r ich fuel mixture delivers a cooler runn ingtemperature and more lubrication but with slightlyless power and longer engine life.

Less Fuel = Lean

Lean Fuel MixtureProvides strong and efficient combustion andpower, but if you lean out too much the result is lesslubrication, more engine heat and shorter enginelife.

Adjust carburetor to keep theoperating temperature below250F.

Engine temperature can tell you if the engine isrunning lean or rich.

Danger


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Page 13

The idle speed is set after the high-speed needle is adjusted and theengine is up t o operating temperature. To properly set the Idle

Adj ust ment Screw, turn on your r adio system and set t he thrott le tr im onthe transmitter so that the throttle is in its neutral position. This willensure that the throttle slide is fully closed and resting against the idleadjustment screw. Turn the idle adjustment sc rew counter clockwise toreduce the idle speed, or clockwi se to increase it. The idle speed shouldbe set high enough to keep the engine running smoothly but not engagethe clutch and turn the wheels. Too high of an idle speed willprematurely wear out the clutch shoes and brake disk.

Idle should be set so that at neutral throttle position the engine is running without engaging the clutch and moving the car forward.

Improper Idle Speed Setting:Clutch engaged and wheels turning.

Proper Idle Speed Setting:Engine runs smoothly without wheels turning.

If idle is unstable, adjust the low speedneedls to get a stable idle. Afterwards,you need to readjust the idle adjustmentscrew.

We recommend that you do not touch th e Low Speed Needle. If adjustment is needed, the low-speed mixture is set after the high-speed needleis adjusted and the engine is up to operating temperature. Set the needle flush (Factory Setting) with the carburetor body, this setting isideal for breaking in and starting your motor. For increased performance turn the needle in 1/8 turn increments; this will improve bottomend throttle response. To test your setting, place the car on the ground and let the engine idle for 30 seconds then accelerate to 3/4throttl e. If there is a lot of white smoke and the car accelerates slowly, the mixture is too rich. If the engine accelerates quickl y and thensputters, the mixture is too lean. When the low-speed needle is set correctly the engine's throttle response should be smooth and quick.CAUTION: Never turn in more than 2 turns from flush this will cause the engine to run too lean and may damage your engine! If the LowSpeed Needle is set too lean you will experience the following: Flame out at part o r 3/4 throttle, overheating (temperatures above 280 F atthe glow plug). If your engine is running too lean, reset the Low Speed Needle to its factory setting (Flush) and start the tuning processagain.


Low Speed Needle Adjustment

1mm (0.04")

Low Speed Needle More Fuel = Rich

Less Fuel = Lean

Flush (Factory Setting)

Following the tuning steps, tune the engine until i ts maximum performance is reached. While a lean motor will have higher performance, it canlead to premature engine wear or failure. Use the following information to tune your engine to your dr iving conditions. Remember a slightly richsetting is a safer setting.Engine temperature can tell you if the engine is running lean or rich. If you check the engine temperature, you can understand how to tune yourcarburetor. Adjust carburetor to keep the operating temperature below 250F. If the engine temperature goes over 250F, the engine wil l bedamaged.If you turn the needle past the closed point, it wil l be damaged. Do not tighten past closed.If you lose the needle setting, you can reset the factory setting (See Section 2-9) and re-tune.

2-9

Fuel Mixture Tuning Tips


RPM High

RPM Low

Optional Tuning

No!

Ok!

2-8


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Page 14

Good PlugElement glow swhen tested.

Filament

Hot!

Glow Plug

Pliers

Glow Plug Igniter

Bad PlugElement may bedamaged or broken if itdoesnt light upcompletely.

Bad PlugElement is broken ordoesnt light up at all.

Checking glow plug

How Glow Plugs Work

Proper Glow Plug Selection

Flush

High Speed Needle is set flush with groove, Idle Adjustment Screw, Lowspeed needle and Mid Range Needle are designed to be set fl ush wi th thecarburetor body . This makes it easy to reset the carburetor to the FactoryBreak In Setting if needed.

Unlike full sized car engines that use spark plugs and a distributor to fire the cylinders in the combustion cycle, glow engines relyon glow p lugs. In a Nitro engine, ignition is in itiated by the application of a glow igniter. When the igniter is disconnected, the heatinside the combustion chamber keeps the glow plug f ilament glowing, firing the next cycle, thereby keeping the engine running.Ignition timing in a glow engine is automatic. At higher RPMs the plug becomes hotter, firing the fuel/air mixture earlier. At lowerRPMs the plug becomes cooler, firing the fuel/air mixture later. Since the glow plug performs so many important functions,proper plug selection and maintenance are crucial to a properly running engine.

Proper glow plug selection depends on several factors: Fueltype, nitro methane content, weather, and altitude can drasticallyaffect performance. Finding the best combination of fuel andplug temperature for your driving condition is the key to gettingthe maximum performance out o f your Nitro Star Engine.

Extending the Life of your Glow Plug

To maximize and extend the life of your glow plug follow these simple tips;Remove the glow igniter when using more than 1/2 throttle or if the engine does not start after a few seconds.Do not run the engine lean, Lean condi tions will overheat the plug causing the element to be damaged or fail.Use the best Fuel/Plug combination for your driving condit ions.Use a fuel that has a lower ni tro content.

When to Replace the Glow Plug

Fuel and temperature will have an effect on the performance,reliability, and life span of the glow plug and therefore itshould be considered an expendable engine component.

Aside from burnout or plug failu re, there are several signs thatcan indicate the plug should be replaced.Plug filament/plug body is disco lored or the surface is rough.Plug filament is distorted or bent.Engine cuts out when idling .Engine becomes difficult to start.

High Speed Needle

Flush with Groove

Mid Range Needle

Low Speed Needle


When needle is over tightened, theneedle is damaged.

Glow Plug

Carburetor Factory Setting (Break In Setting)

Attention

2-9

2-10

Outdoor Temp

Cold

Hot

Glow Plug

Glow Plug Characteristics

Hot plug will b e easy to start andstable for tuning. But will failsooner at high engine temperature

Cold plug will have better mid,high RPM power and will lastlonger at high temperature.

Glow Plug Medium R3

Glow Plug Medium Cold R4

Glow Plug Cold R5


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Page 15

Engine Does Not Start.

Out of fuel.

Fill the tank with fuel and prime engine.

Engine Starts Then Stalls.

Out of fuel.

Fill the tank with fuel and prime engine.

Engine Running, But Car Doesnt Move.

See section 2-9 on carburetor factory setting then see section2-7 on engine tuning after break in.2-92-7

Erratic Control.

Weak batteries in transmitter and receiver.

Install fresh battery and recharge battery.

Improper antenna on transmitter or model.

Fully extend antenna.

Do you have clutch problem?

See section 3-6 on clutch maintenance.3-6

Are the brakes stuck?

See section 2-5. Make sure there is no brake drag at neutral.

Pullstart working properly?

Start engine by pulling the starter cord with quick, short pulls.

Glow plug igni ter not charged.

Charge glow igniter battery.

Glow plug is bad.

Replace glow plug.

Engine flooded.

Discharge fuel.

Air fi lter is blocked.

Check air fil ter, clean or replace if necessary.

Air fi lter is blocked.

Check air fil ter, clean or replace if necessary.

Engine is overheated,

Allow engine to cool and then restar t.

Idle speed is set too low.

Adjust the idle speed.

Do you have a drivetrain problem?

Check drivetrain for damage.

Throttle isnt adjusted properly.

Throttle servo is improperly set up.

Set servo to neutral and reset linkage according to radio andmodel manufactures specifications.

Throttle servo is improperly set up.

If R/C car does not move or you have no control, see below.

Troubleshooting2-11

SectionProblem Cause Solution

2-6

2-6

2-3

2-10

2-6

3-4

2-9

See section 2-9 on carburetor factory setting then see section2-7 on engine tuning after break in.2-92-7

Set servo to neutral and reset linkage according to radio andmodel manufactures specifications.

Throttle isnt adjusted properly. 2-9

2-5

2-5

2-6

2-7

2-8

3-73-8

3-93-10

Do you have a drivetrain problem?

Check drivetrain for damage.

3-73-8

3-93-10

3-6

Gear mesh is incorrect.

See section 3-9 on center gear box maintenance.3-9 3-9

Do you have clutch problem?

See section 3-6 on clutch maintenance.3-6 3-6

2-5

Receiver battery capacity is low.

Recharge reciever battery. 3-5

3-5

3-5

Brake does not work.

See section 2-5 on linkage setup.2-5 2-5

3-4


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Page 16

9062 (US,EU)9063 (JP)Nitro Car CleaneThread Lock

Z190Air Fil ter Oil

Needle Nosed Pliers

Necessary for maintenance

3Maintenance After running you should clean the chassis and perform routine maintenance to keep the car in good running orde

Maintenance Chart3-1

Allen Wrench

1.5mm

2.0mm

2.5mm

3.0mm

1.5mm

2mm

2.5mm

3mm

5.5mm

5.5mm

3.6mm

7mm

Z950Cross Wrench


8mm

17mm

18mm

86588Multi Wrench

Air Fil ter Maintenance

Radio Maintenance

Clutch Maintenance

Gear Box / Differential Maintenance

Front And Rear Differential Maintenance

Center Gear Box Maintenance

Center Differential Maintenance

Shock Maintenance

Servo Maintenance

Engine Maintenance

Chassis Maintenance

Clean the air filter after every run.

Clean the chassis after every run.

Check the wheels after every run.

Maintain Engine after each days running.

Maintain Clutch after each days running.

Maintain Gear Box after each days running.

Maintain diff Gear Box after each days running.

Maintain diff Gear Box after each days running.

Maintain Gear Box after each days running.

Check the battery before every run.

Check the linkage before every run.

Check the Shocks before every run .

Wheel Maintenance

Maintenance Item

Maintenance Time

Reference Section

page 173-2

page 173-3

page 183-4

page 193-5

page 203-6

page 213-7

page 223-8

page 233-9

page 243-10

page 253-11

page 263-12

page 283-13

Every 1 Tank

Every 5 Tank

Every 10 Tank

For maintenance schedule, refer to right side of the chart. After running , clean the chassis and check all moving parts fo r damage. If anyparts are broken or damaged, repair or replace them before the next run .Regular maintenance is necessary to prevent damage to the car and maintain its performance.

RagBrush

Screwdriver

30035 (JP)Instant Cement

Z164Grease

39014 (JP)Oil Spray


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Page 17

Chassis maintenance

Make sure the ti re is secure on the wheel. Re-glue if necessary.

Use 17mm glow plug wrench to remove and install wheels.

Wheel Removal and Installation

Re-Glue Wheel

3-2

Wheel maintenance3-3

After running, clean the car and lubricate these points.Replace damaged parts, check that all the screws are tight.

Oil Spray

Rag

Brush


17mm

Use small amount to secure tire.

Z659

Allen Wrench

1.5mm

2.0mm

2.5mm

3.0mm

1.5mm

2mm

2.5mm

3mm

30035 (JP)Instant Cement


18/44

Page 18

Air Filter Maintenance

Dirt is the biggest enemy of a nitro engine and proper air filter maintenance is one of most impor tant factors thatwill affect your engines longevity. We recommend cleaning the element after every run. It is always a good habitto check the element after every run to make sure it is properly seated in the filter body and that the body is fullyseated on the carburetor. Never run the engine wi thout the air filter.

Remove and clean the air filter with nitro fuel when dirty. Spray fuelthrough the clean side to ensure proper dirt removal. Squeeze the filterto remove excess fuel. To re-coat the air filter with oil, place theelement in a plastic bag with several drops of air filter oil. Using yourfingers, work the oil into the element making sure it is evenly distrib-uted.

After properly cleaning the filt er element make sure it is reinstalled correctly . Make sure there are no gapsbetween the element and body . Make sure the filt er is ful ly seated on the carburetor and secure it w ith a tie st rap.Never run the engine without the air filter.

3-4

Proper Air Filter Maintenance

Cleaning the Filter Element

Reinstalling the Filter Element

6145

Z224

Z543

87509

6154

Z190Air Fil ter Oil

6154Nylon Strap

2.5mm2.5mm

2.5mm

If the air filter falls off, you must stop the engine immediately.

Attention

1 2 3

Make sure the air filt er isfully seated on the carbure-tor and secure it with anylon tie str ap (6154).

Make sure the air filter isfully seated on the carbure-tor and secure it with anylon tie strap (6154).

87199 a

87199 b

87199 c

87204 a

87204 b


19/44

Page 19

The crystal can be replaced to change frequencies.Do not use same frequency as other cars.Transmitter antenna must be extended.

See section 2-5 on linkage set up.Receiver antenna must be extended.2-5

If antenna is not positioned correctly, the receiverwill have low range or may not function.

Receiver Connections

Do not use FM crystals.

Radio Maintenance

HPI TF-3 (AM) Transmitter

Transmitter

Receiver and Servo

Receiver battery

Battery level indicator

Exchange Batteries

When the battery level indicator (LED) blinksin red, replace the batteries with new onesimmediately.

Be sure to pull on the connector.Pulling the wire can cause damage.

Good Batteries

Low Batteries

3-5

CH. 2 : Throt tle Servo

CH. 1 : Steering Servo

BATT : Receiver Battery

Receiver Battery

Receiver Switch

Antenna

AM Transmitter crystal (TX)

AM Transmitter crystal (TX)

AM Receiver crystal (RX)

AM Receiver crystal (RX)

1. BROWN

2. RED

3. ORANGE

4. YELLOW

5. GREEN

6. BLUE

(#80510)

(#80510)

(#80510)

(#80510)

(#80510)

(#80510)

02.

04.

06.

08.

10.

12.

26.995 MHz

27.045 MHz

27.095 MHz

27.145 MHz

27.195 MHz

27.255 MHz

Band (US, EU)

Band (JP)

Frequency

Use included charger only for included receiver pack.Do not use any other battery.Charge time for discharged battery: 4 hours.Do not charge battery for longer than 4 hours. This will cause overheating and battery damage.

Do not charge other batteries with this charger. Serious damage orinjury can occur.Keep battery out of reach of chil dren.Keep battery away from water.

After charging disconnect the battery and unplug the charger fromwall.

Charge time 4 hours.

Compatible Charger

Plug into a wall outlet

Attention

Receiver

80556HPI RF-1

80559 HPI SF-1

80560 HPI SF-2

80575 HPI SF-1

2013



20/44

Disassemble Clutch Shoe

Assemble Clutch Shoe

Use flathead screwdriver

Use flathead screwdriver

Proper Spur Gear Mesh.

Adjust the engine mount screws sogears mesh smoothly.

Adjust the engine placement forproper gear mesh.

Change the gear ratio to suit the running condi tions.

Maintenance Point

Refer to Exploded View

If clutch shoes or spring are damaged.

Clean inside of clutch bell and reassemble.

Standard

Clutch Bell

SpurGear

Note Direction

Clutch Maintenance3-6

Z694Z694

Z845Z543

B021

B021

77103

Thread Lock

86511

51T

8651252T

86513

53T

77103

13T77104

14T77105

15T77106

16T

Gear Chart

16.4 15.3 14.3 13.4

16.8 15.6 14.6 13.7

17.1 15.9 14.8 13.9

2.5mm2.5mm

2.5mm2.5mm

2.5mm

2.5mm

Screwdriver

Screwdriver

87151 a

87151 b

87151 a

94529

2.5mm

94529

87151 b

87151 b

x3

x3

5-1

Page 20


21/44

Thread Lock

Page 21

Gear Box / Differential Maintenance3-7

If parts are damaged, repair or replace them according to the instruct ion below.Before removing bulkhead, loosen sway bar set screw.Rear gear box removal is same as front.

Make sure to tighten the set screws.

Do Not Over Tighten.

Front

Rear

Gear Box / Differential removal and installation

Differential Gear removal and installation

85501

85501

86523

86566

B085

86565

86505

86598

2.5mm2.5mm

2.5mm2.5mm

Grease

1.5mm1.5mm

1.5mm

Center Front Drive Shaft 8x86mm

Tapping Flat Head Screw M4x15mm

Tapping Flat Head Screw M4x20mm

Tapping Flat Head Screw M4x40mm94641

94633

94631

Cap Head Screw M2.6x8mm

Z412

Set Screw M5x4mm

Z740

86567

Front

Rear

86566

86567

Center Rear Drive Shaft 8x112mm

94631

2.5mm

94641

2.5mm

94633

2.5mm

2.5mm

Set Screw M4x4mm

Z721

Pin 2.5x14.6mm

86506

94631

2.5mm

85512 5

85512 5

Z700

1.5mm

Z700

1.5mm

Note Direction

Grease

Maintenance Point


If parts are damaged.5-3 5-4

Note Direction

2.0mm2mm

2mm


22/44

Page 22

Differential oil

Differential oil

Fill to top of cross shafts with silicone diff oil.

Front

7,000 wt

7,000 wtRear

86522

85500

B085

86520

B085

86520

86099

87194

87194

2.0mm2mm

2mm

2mm

87521 b 87521 b

87521 c

87521 b

87521 a

87521 a

87521 c

87521 c

87521 b

87521 c

Front and Rear Differential Maintenance3-8

Z164Grease

Z164Grease

Maintenance Point


If parts are damaged or oil level is low5-3 5-4

O-ring 6x9.5x2mm

6811

O-ring 6x9.5x2mm

6811

Make sure to tighten the screws.

Set Screw M4x4mm

Z721Flat Head Screw M3x15mm

Z085

Pin 2.5x12mm

Z260

Pin 2.5x12mm

Z260


23/44

Page 23

Center Gear Box Removal and installation

Center Gear Box removal and installation

2.0mm2mm

86514

86514

85514

86530

86516

86517

85502

86518

86518

1.5mm

2.0mm

1.5mm

1.5mm

2mm

2mm

87515 b

87515 b

87502 3

87502 5

87515 a

87515 a

87515 a

87515 b

87515 a

87515 a

F

R

Center Gear Box Maintenance

4mm

6.5mm 6.5mm

2mm

Front

Rear

x4

3-9

Proper Spur Gear Mesh.

Adjust the engine mount screws sogears mesh smoothly.

Adjust the engine placement for propergear mesh.

2.5mm2.5mm

2.5mm

94529

2.5mm

94529

Maintenance Point


If brake parts are worn or damaged.5-1

2mm

Button Head Screw M3x30mm

Z360

Set Screw M3x3mm

Z700

1.5mm

Set Screw M3x3mm

Z700

Flat Head Screw M3x8mm

Z082

2mm Button Head Screw M3x15mm

Z216


Z216

2mm


Z353


24/44

Page 24

B085

86592

86519

87521 a

Center DifferentialMaintenance

Differential oil

Differential oil

Fill to top of cross shafts with silicone diff oi l.

Center

15,000 wt

85500

B085

86519

86099

87194

87194

87521 b 87521 b

87521 c

87521 b

87521 a

87521 c

87521 c

87521 b

87521 c

3-10

2.0mm2mm

Z164Grease

Z164Grease

Maintenance Point


If parts are damaged or oil level is low5-1 5-2

O-ring 6x9.5x2mm

6811

O-ring 6x9.5x2mm

6811

Set Screw M4x4mm

Z721

Pin 2.5x12mm

Z260

Pin 2.5x12mm

Z260

Make sure to tighten the screws.

2mm

2mm


Z085


25/44

Page25

Shock maintenance3-11

Use masking tape to protect shock shaft. Screwball end all of the way onto the shock shaft.

Use a Rag.

86540

86543

86541

87500

86544

87524

85510 3

85231 5 85231 7

85231 8

85231 5

85231 4

85518 1

85510 8

5mm

5mm

Z950Cross Wrench

Shock Springs

Front

Silver

86550

18x80x1.5mm 10.5 COILS

18x80x1.8mm 11.5 COILS

Yellow

86554Rear

Shock Oil

Front

20 wt.(#200)

20 wt.(#200)

Rear

Shock Clips

Front

3mm x1

5mm x1

85231 11

85231 9 10mm x1

2mm x1

Rear

Piston

Front

8551012

1.4mm x2 holes

85510 13

1.6mm x2 holes

Rear

18mm

86588Multi Wrench x2

1

2

3

Maintenance Point


If oil is leaking or shock shaft or O-ring is damag5-3 5-4

Silicone O-ring S4 (3.5x2mm)

75075

Lock Nut M2.6

Z661

Washer 2.7x6.7x0.5mm

Z685

Move the shaft up anddown slowly to removeall air bubbles.

1 2

3

5

4


26/44

Page 26

Servo Maintenance3-12

Airt ronics / JR / KO

Route wire through the hole.

Route wire through the hole.

KO

Futaba / Hitec / HPI SF

Airt ronics / JR / KO

Futaba / HPI SF

Hitec

23

24

25

Optional

Transponder Holder

2.0mm2mm

2.0mm2mm

5.5mm

5.5mm

Z950Cross Wrench

85515 5

85507 11

85507 13

855071585515 5

85515 4

85515 4

85515 5

85515 1

85515 1

85515 1

2mm

Z353

2mm

Z082

87511

87511

8751187511

85515

86576

A132

Throttle Servo

Steering Servo

80559 HPI SF-1

80560 HPI SF-2

Steering Servo

80560 HPI SF-2

Steering Servo Assembly

Servo Assembly

Maintenance Point


If servo gears are damaged.5-3

2mm Flat Head Screw M3x8mm

Z082

2mm


Z082

2mm


Z083

Cone Washer

86576

LOCK NUT M3

Z663


Z216


Z353

2mm


Z353

2mm


Z350


27/44

Cone Washer

86576

Page 27

Throttle Linkage Assembly

Brake Linkage

Throttle Linkage

Brake Linkage

Throttle Linkage

x2

x1

45.6mm

0.5mm

8mm

2mm

3.3mm

57.9mm

45.6mm

18mm

18mm

3.3mm

2mm

0.5mm

57.9mm

18mm

Flush

57.9mm

45.6mm

18mm

18mm

3.3mm

2mm

0.5mm

85507 6

85507 7

85507 8

85507 9

85507 3

86571

86571

86575

86575

1.5mm1.5mm

Z224

86577

86575

86575

86573

86575

86574

2.0mm2mm

Air tron ics / JR / KO

Futaba / HPI SF

Hitec

23

24

25

85507 10

85507 12

8550714

1.5mmSet Screw M3x3mm

Z700

1.5mm

Set Screw M3x3mm

Z700

1.5mm

Set Screw M3x3mm

Z700

Silicone Tube

50474

2mm


Z082

1

3

2 2mm


Z085

2mm


Z352


28/44

Page 28

NITRO STAR K4.6 HO ENGINE Maintenance 3-13

High Speed Needle

Mid Range Needle

Low Speed Needle


Pull Starter

Exhaust Outlet

Crankcase

Glow Plug

Heat Sink

Reference Section

Carburetor

Engine Features Carburetor Features

Exploded view

Spare Parts List

1523715228

15217

15218

15244

15245

15231

15231

86077

15260

15214

15213

15215

1524315266

15268 15269

15241

15233

15236

15226

15234

94154

Z542

15271

15272

15274

15275

15285

15283 15282

Z700

1504

Engine Maintenance

Drain all remaining fuel from the fuel tank. Use a fully charged glow igni ter and try to restart the engine to burn any remaining fuel out of the lines.After burning off the fuel, remove the g low plug and add several drops of after run oil , then crank the eng ine over to spread i t throughout theengine.

Break In Linkage set up Carburetor Set up

2-62-52-7

Number

Qty.

Description

15204 x1 Nitro Star K4.6 HO Engine With Pullstart

1504 x1 Glow Plug Cold R5

15217 x1 Cylinder/Piston Set

15218 x1 Cylinder/piston/connecting Rod Set

15213 x1 Connecting Rod

15214 x1 Piston Pin/retainer Set

15215 x3 Retainer For Piston Pin

15243 x1 Heatsink Head (Gray/K4.6 HO)

15244 x1 Crank Case (K4.6 HO)

15245 x1 Crankshaft (K4.6 HO)

15226 x1 Pullstart Assy. (W/o One-way Bearing)

15228 x1 Gasket Set For Cylinder (0.15mm/0.3mm)

15231 x1 Lock Pin Set For Carburetor

15233 x1 Pullstart Shaft Holder

15234 x1 Starting Shaft

15236 x1 Cover Plate Set

15237 x4 Screw M3.5x16mm For Heatsink Head

15241 x1 Dust Protection And O-ring Complete Set

Dust Protection And O-ring Complete Set

15261 x1 Slide Carburetor Complete W/ Restrictors (Type KB)

15283 x1 Slide Carburetor Main Body W/restrictors(Type KB)

15266 x1 Uniball

15268 x1 Low Speed Needle Valve With O-ring

15269 x1 Slide Valve

15271 x1 Idle Adjustment Screw With O-ring

15272 x1 Fuel Line Fitti ng/Washer Set

15274 x1 High Speed Needle Valve Holder

15275 x1 High Speed Needle Valve With O-ring

15282 x1 Mid Range Needle Valve With O-ring

15285 x1 High Speed Needle Valve Set

86077 x2 Collet 7x6.5mm (Brass/21 Size)

87198 x1 Air Cleaner (21+ Size)

87199 x1 Air Cleaner Sleeve Set (For #87198)

87204 x1 Air Cleaner Foam Element Set (For #87198)

94154 x12 Flat Head Screw M2.6x8mm (Hex Socket)

Z542 x12 Cap Head Screw M3x8mm

Z700 x6 Set Screw M3x3mm

Number

Qty.

Description

Number

Qty.

Description

If one way bearing or pul lstart or connecting rod are damaged, pleaserefer to diagram below.


29/44

2

1

Rebuilding The Engine

Page 29

Engine Assembly

2.5mm2.5mm

2.5mm

2.5mm


8mm

Oil Spray

2.0mm2mm

2mm

Note Direction.

After completely disassembling the engine, examine the components to determine which parts need to bereplaced. Scratches on the crankshaft, or p iston and sleeve are signs that dirt has entered the engine.Before reassembly, thoroughly clean all parts to make sure they are free of foreign debris. Reassemble theengine in the reverse order of disassembly (Step 6 - Step 1). Make sure to note the di rection of the oil ho leon the rod and the direction of the sleeve as they are critical to proper engine func tion. As you assemble theengine, use a small amount of oil on each part to make sure they are well lubr icated and move freely. Whenyou are finished, the new components will need to be broken in. Please turn to 2-6 and follow theinstructi ons to break in the new components.

After assembling the engine, follow the ins truct ions on these pages to break in and set up your rebuil t engine.

15222

6

15215

15215

15213

15217

1521415228

15217

15234

Z542

Before removing the backplate, rotate crankshaft sothe piston is at the top of itsstroke. If piston is in thelower position, It will bedamaged.

Note: 8mm

94154

15237

1504

15236 b

15236 a

15236 c

Reference Section

Break In Linkage set up Carburetor Set up

2-62-52-7

Z164Grease

Thread Lock

Thread Lock

Z164Grease

Check engine compression.If there is no compression,the engine will not start.

OK! NG!

NG!0.1mm

There comes a time when your engine just wont provide theperformance it did when it was new. When that time comes arebuild is in order. Follow the steps below to disassemble, repairand then reassemble the engine.

1 2 3

54


30/44

Page 30

Tuning and Setup

4Tuning and Setup Guide

The Hellfire is the most tunable racing truck currently available. Most of the adjustments can be made in very small increments to fine tune yourhandling and response. Use setup guide and the included setup sheets to start tuning your t ruck.

Setup Chart4-1

Setup Item

Reference Section

page 304-2

page 314-3

page 314-4page 324-5

page 324-6

page 334-7

page 344-8

page 344-9

Before making changes to the setup of the truck, make sure the truck is in good running condition.Making setup changes to a truck in poor condit ion may not have the expected results.

Ride Height

Camber

Droop

Sway Bar

Clutch

Shock Absorbers

Shock Mounting Position

Camber Link Location

Kick Up

page 35

page 35

4-11

page 36

4-12

page 36

4-13

page 36

4-14

page 37

4-15

page 37

4-16

page 37

4-17

4-18

Caster Angle

page 354-10

Setup Item

Reference Section

Steering

Front Toe

Front Inboard Angle

Rear Toe Angle

Rear Anti Squat

Wheelbase

Differentials

Front

Front Ride Height

Rear Ride Height

Rear

Use the shock clips to set the ride height of your car relative to the ground. Start with 8 mm of cl ips in the front and 12mm of clips in the rear (withbattery and full fuel tank).You can experiment with chassis balance by keeping the car level or by raising the front or by raising the rear higher.

3mm85231 55mm85231 8

2mm85231 1110mm85231 9

Std.

Std.

Shock Clips

1mm85231 10

2mm85231 11

3mm85231 5

5mm85231 8

8mm85231 7

10mm85231 9

Ride Height 4-2


31/44

Page 31

Camber4-3

Front

Rear

Use the upper link turnbuck les to adjust camber. Always use negative camber (tires leaning in).More camber usually gi ves more progressive tire slipp ing, while less camber will give a more direct feeling.

Adjust according to ti re wear.1.5 degrees of negative camber is a good starting point. Use a gauge for precise measurement.

Camber Angle

More Negative Camber

Front / Rear

Rear

Front

Quicker reaction to steering input.

Less rear traction on entry and mid-corner.

Less Negative Camber

Rear

Front

Slower reaction to steering input.

More traction on entry and mid-corner.If the wheel is too vertical, traction loss will be very sudden and difficu lt to contro l.

Characteristics

Droop4-4

Front

Rear

Droop is the common R/C term for the relative amount of shock down travel. Limiting down travel (Droop)can change the response of your car.The amount of t ravel will determine how quickly the car transitions in cornering. Less Droop will make the car react quicker. More droop wi ll slowdown the response and allow more travel for bumpier tracks.

Front / Rear

Rear

Front

Rear

Front

Characteristics

Droop Cange

Set screw for droop adjustment

Set screw for droop adjustment

Less droop

Less on power steering. Better for smaller jumps.

More droop

More on power steering. Better handling on rough tracks.

More rear traction. Better handling on rough tracks.

Less off power steering.

Wheel


32/44

Page 32

Sway Bar4-5

Clutch4-6

Adjust t he st iff ness of the fr ont or rear an ti r ol l bar by using a th inner o r th icker w ire and by adj usting t he co llar posi tion.

Front / Rear

Rear

Front

Rear

Front

Characteristics

Softer

Stiffer

Softer

Stiffer

Softer

Stiffer

More front chassis roll.More front traction.Less rear traction.Less off-power steering.

More rear chassis roll.More rear traction.Less front traction.Less on-power steering.

Sway Bar Stiffness

Less front chassis roll.Less front traction.Less off-power steering at corner entry.Faster steering response.

Less rear chassis roll.Less rear traction.More front traction.More on-power steering.Faster steering response in high speed chicanes.

2mm Black

Silver

Gold

2.5mm

3mm

86579 a

2mmBlack

Black

86579 a

86395 a

86579 b

86579 c

Std.

Clutch Springs

Thinner

0.7mm

Clutch engages earlier at lower RPM.More gradual acceleration.Easier to dr ive but not as aggressive.

Thicker

Clutch engages later at higher RPM.More sudden acceleration.Car is more aggressive.

Clutch Shoe Orientation

Clutch Springs

Clutch Shoe Orientation

Trailing shoes

Clutch engages more smoothly.Better suited to slick track conditions.

Leading shoes

Trailing shoes

Leading shoes

Clutch engages more aggressively.Better suited to high traction tracks.

Adjust t he engagemen t characteri st ics of the clu tch byusing different clutch springs.

Adj ust the engagement charact eristi cs o f the clu tch bychanging the orientation of the clutch shoes.

Adj ust the engagement charact eristi cs o f the clu tch by changing the clu tch spring o r changing the ori entation of the clu tch shoes.

Characteristics

Characteristics

Std.

Std.

Option

87151

Silver

0.9mm86395 bOption

Gold

1.0mm

CLUTCH SPRING SET

86395

Sway Bar


33/44

Page 33

Shock Absorbers4-7

Characteristics

Shock Oil

Piston Hole Size

Piston Hole Type

You can use shock oils of di fferent weights in the shock absorber.

There are two pis tons with different sized hole.

There are two different types of shock pistons that can be usedin the HELLFIRE.

Shock Oil

Piston Hole Size

Smaller

Larger

Piston Hole Type

Straight

Compression and Rebound damping are the same.

Taper Up

Less compression damping.

More rebound damping.

Taper Down

More compression damping.Less rebound damping.

Stiffer damping.Slower chassis weight t ransfer.Car reacts slower to input.Less chance of bottoming out when landing when used with thicker oil.Less chassis roll if used with thicker oil.Use with thinner oil if track is rough.

Softer damping.More traction.

Quicker chassis weight transfer.Car reacts quicker to input.More chance of bottoming out when landing if used with thinner oil.More chassis roll if used with thinneroil.Use with thicker oil if track is smooth.

Thinner

Same as using larger pistons holes.

Thicker

Same as using smaller pistons holes.

Characteristics

Characteristics

Characteristics

1.4mm

1.6mm

Shock Spring

Shock Spring

Parts Number

Description

Softer

More chassis roll.More traction.

Better on bumpy tracks.More chance of bottoming out when landing.

Stiffer

Softer

Stiffer

Less chassis roll.Less traction.Car reacts quicker to input.Better on smooth tracks.Less chance of bottoming out when landing.

Change the springs to con trol the attitude of your car on the track. Stiffer springs react more quickly, but maynot handle bumps. Try to use springs that keep the chassis level under cornering.

86549

86550

86551

86553

86554

86555

SHOCK SPRING 18x80x1.5mm 12.5 COILS (BLUE 4lbF/in / 71gF/mm)

SHOCK SPRING 18x80x1.5mm 10.5 COILS (SILVER 5.5lbF/in / 89gF/mm)

SHOCK SPRING 18x80x1.8mm 14.5 COILS (PINK 7lbF/in / 134gF/mm)

SHOCK SPRING 18x80x1.8mm 12.5 COILS (WHITE 9lbF/in / 159gF/mm)

SHOCK SPRING 18x80x1.8mm 11.5 COILS (YELLOW 10lbF/in / 177gF/mm)

SHOCK SPRING 18x80x1.8mm 10.5 COILS (RED 11lbF/in / 196gF/mm)

Front

Rear

Std.

Shock Oil

20 wt.(#200)

Std.

20 wt.(#200)


34/44

Page 34

Shock Mounting Position4-8

Camber Link Location4-9

Front

Rear

Front Rear

Characteristics

Characteristics

Shock Position

More inclinedmoving in on towerand/or moving out onlower arm

Softer initial dampingMore progressive dampingBetter lateral tractionMakes the handling more forgivingGood for high-bite tracks, since it makes the car

more stable and easy to drive.

Less inclinedmoving out on towerand/or moving in onlower arm

Stiffer dampingLess lateral tractionMakes the car more responsiveBetter suited for tight, technical tracks

You can change the shock mounting position by leaning the shocks at different angles, and also moving the shock closer or further from thecenterline of the car. You accomplish this by moving the shock top and bottom mounts to different locations on the shock towers and lowerarms.

To adjust the response of your chassis you can use a variety of camber link l ocations.

Camber Link Position

Higher Position

More on-power steering.Car responds slower to input.Better on smooth, high-grip tracks with long fast corners.

Lower Position

Less on-power steering.car responds quicker to input.Use in high-grip conditions to avoid traction rolling.Use on tracks with qui ck direction changes.

Characteristics

Shorter link

More camber gain.More traction slightly.Less steering and stability.

Longer link

Less camber gain.More stability.Car responds to input slower.

Camber Link Length

Std. Position

Std. Position

Std. Position

Std. Position


35/44

Page 35

Kick Up

Front

Chassis Kick Up

Total Kick Up

Suspension Mount Kick Up


Eccentric Bushing

Std.

-2.0

-1.5

-1.0

-0.5

0

= 7.0

Chassis Kick Up 7.05.5 -1.5= +

Total Caster Angle

Caster Angle


Chassis Kick Up 7.018.5 13

1315

-1.5= ++

7.0

Characteristics

Kick-up angle

More kick-up

More weight transfer to the front of the chassis off-throttle or under braking.Chassis compress or drops more off-throttle or under braking.Better handling on bumpy tracks.

Less steering response.

Less kick-up

Less weight transfer to the front of the chassis off -throttle or under braking.Chassis compresses or drops less off-throttle or under braking.Better handling on smooth tracks.More steering response.

Characteristics

Caster Angle

Adjust f ront k ick-up of t he fr ont lower arms by changi ng t he eccentric bushing in the plate at rear of the front bulk head.

Caster Angle4-11

4-10

Steering

4-12

Less Caster More off-power steering into a corner.Less on-power steering out of and in a corner.Less straight-line stability.

More Caster

Less off-power steering into a corner.More on-power steering out of and in a corner.More straight-line stability.

Characteristics

Ackerman Angle

Forward Holes

Smoother steering response.Car reacts smoothly to steering input.

Rearward Holes

More direct initial steering response.Car reacts faster to steering input.

Adjust the fr ont cas ter angle by chang ing the caster brocks. The final caster also depends on kick-up set ting.

85505

85504

85505

The steering pl ate has been designed to give a full range of Ackerman running op tions.

Std.

Std. Position


36/44

Std.

Std.

Page 36

Front Toe

Front

Rear

0

0.5

1.0

1.5

2.0

Characteristics

4-13

Front Toe

Toe-in

More straight-line stability.Less steering response.More steering mid-corner and on-power corner exit.

Toe-out

Front Toe

Toe-in

Toe-out

Less straight-line stability.More steering response.Less steering on-power at corner exit.

Characteristics

Adjust by adjusting the l ength o f the steer ing l ink tu rnbuckl es.

Front Inboard Angle

4-14

Rear Toe Angle

4-15

Less Inboard Angle

More front stability.

More Inboard Angle

Less Inboard Angle

More Inboard Angle

More aggressive cornering.

Front Inboard Angle

Characteristics

Rear toe angle

Front inboard angle can be adjusted by changing t he eccentric bush ings.

More rear toe-in

More stability under braking.More stability on power at corner exit.

Less top speed

Less rear toe-in

More Rear Toe-in

Less Rear Toe-in

More steeringLess stability on power at corner exitMore top speed

Rear toe angle can be adjusted by changi ng the eccentric bushings .

2.0

2.5

3.0

3.5

4.0

86524

86528

Eccentric Bushing

85504

Eccentric Bushing

85504


37/44

Page 37

Rear Anti Squat

3.5

3.0

2.5

4mm

2.0

1.5

Front

Characteristics

85508 3 85508 1

Characteristics

4-16

Wheelbase

4-17

Anti squat angle

More Anti Squat

More rear traction during acceleration.Less rear traction off-power.Good for smooth, slippery tracks.

Less Anti Squat

More rear traction o ff-power.Less rear traction on-power.Good for rough tracks.

Adjust r ear ant i squat of rear l ower arms by changing the eccen tri c bushings

Eccentric Bushing

85504

Wheelbase

Shorter wheelbaseless spacers in front of rear upright

Better rearward weight transfer during accelerationMore on-power traction.Quicker off-power steering into corners.Slight tendency to push on-power at corner exit.better on tight, technical tracks.

Longer wheelbasemore spacers in front of rear upright

Decrease off-power steering into sharp corners.More stability.Slower initial steering reaction (off-power).Improves on-power steering at corner exit.Better handling over bumps and ruts.

Better on more open tracks with high-speed corners.

Characteristics

Adjust t he wheelbase by usi ng t he spacers on eith er side of the rear upr ights.

Differentials

4-18

Differential

Oil Thickness

Front

Thinner

Thinner

Thinner

Thicker

Thicker

Thicker

Improves steering into corners.If oil is too thin the steering may become inconsistent.Car can lose forward traction during acceleration out o f corners.

Improves stability into corners during braking.Improves steering on-power at corner exit.

Center

Front wheels unload more during acceleration.Increased of f-power steering.Easier to drive on rough tracks.

More all-wheel drive effect.Better acceleration.Increased on-power steering.Better handling on high-bite, smooth tracks.

Rear

Improves cornering traction.Improves steering into corner.

Decreases rear traction while cornering.Reduces wheelspin.

Adjust t he charact eristi cs o f the di fferent ial by using thi nner or th icker s il icone oil .

Std.

Std. 1mm

Std.

Rear

Front

Center

Std.

Differential Oil

7000 wt.

Std. 15,000 wt.


38/44

Page 38

ChassisAssembly

5-

1

94631

Z083

Z082

Z082

Z082

Z082

Z082Z

083

94527

94527

94527

94527

94527

Z082

Z216

Z216

85517

87022

2013

86560

75049

94529

94529

870498

7054

Z150 6

154

6154

86596

Z740

85521

87040

75049

85517

86559

85517

85510

Z353

87511

85516

87523

87076

85516

85516

Z663

Z663

Z663

Z354

Z083

85507

86575

86575

86575

86575

86574

86573

86573

86571

86571

86571

85507

Z352

Z082

85507

85507

85507

85507

85507

Z085

Z224

50474

86575

Z700

Z700

Z700

Z700

Z353

Z663

Z663

Z216

Z224

87504

85514

Z224

Z2

24

85

514

87505

87

504

Z22

4

Z216

Z353

Z721

86570

86500

86173

Z663

85515

85511

85515

8

7511

85517

6122

Z082

Z082

Z082

Z353

Z353

Z082

Z082

Z082

6163

87506

Z354

5

ExplodedView


39/44

Page 395-

2

Front/Rear

DifferentialAssembly

Center

DifferentialAssembly

87521

6811

6811

85500

86519

86519

B085

B085

Z721

Z260

Z260

87521

87521

86099

86592

Z085

87194

Z260

Z412

85501

85501

85501

85501

86598

86598

Z412

Z260

87521

87521

875

21

Z543 Z

224

87199

87199

87509

6154

6154

87204

87204

Z082

Z700

Z360

Z700

Z353

Z216

Z216

8551

1

86518

86518

86

517

86515

86514

86514

86515

86516

85502

85502

86530

87521

87521

87194

85500

Z721

B085

86520

86520

B085

B085

86523

86523

B085

86565

865

65

86567

87235

86566

85502

85502

94631

Z721

Z721

Z544

86561

15204

86561

86007

86562

86076

Z694

Z694

Z543Z

845

77103

B021

87151 8

7151

Z740

Z740

Z085

6811

86522

86099

6811

87235

TransmissionAssembly


40/44

Page 40

FrontAssembly

5-

3

94631

86525

86535

85230

85230

Z663

Z663

Z663

Z663

86059

Z086

Z086

Z216

Z216

86059

86059

86059

85504

85230

86507

Z082

Z082

Z082

Z082

Z082

85515

85515

85515

87511

Z353

Z353

Z216

A132

Z663

85507

85521

86538

86545

86545

94630

94

630

94

641

Z216

Z216

A133

A133

Z700

Z700

85230

85230

Z705

Z705

86580

86580

94641

Z538

Z538

94633

85514 8

6094

86094

85514

94633

Z082

855

07

87511 8

5230

B028

Z216

Z663

A132

B028

85507

85507

87522

94529

94529

87522

86508

865

08

87522

85507

Z083

Z083

B028

B028

86509

94529

94529

86509

86578

94631

94631

Z216

85510

Z663

Z663

9

4630 4

892

48923

151

94630

85519

85519

85519

8

5519

855

19

Z538

Z354

Z354

Z

087

Z087

Z224

Z224

85510

Z216

94631

855

03

85512

85512

85504

86524

94633

94633

85504

8

5509

87513

87513

86579

85503 8

5503

Z234

Z234

Z700

Z700

Z724

85509

85512

Z724

86504

86568

86568

85230

Z663

Z663

Z663

Z663

Z224

Z224

Z547

Z547

Z547

Z547

86144

86144

86144

86144

93627

85230

85230

93627

85230

87235

Z721

86504

Z740 Z

659

Z659

Z272

94

505

B085

B085

86531

86531

85505

85506L

R

R

L

94505

86387

Z740

Z272

94505

B085

B085

86531

8

6531

85505

85506

94505

86387

87235

Z721

Z350

Z350

Z350

Z350

87514

8751

4


41/44

Page 41

RearAssembly

5-

4

94631

85504

85526

94631

86504

86569

85230

Z740Z

659

Z740

Z659

Z272

Z272

B085

B085

B085

B085

85508

85508

Z547

Z547

Z350

Z350

Z350

Z350

87512

87512

Z663Z22

4

86144

86144 8

5508

85508

85508

85508

86387

86387

93635

85230

86569

86504

87235 Z

721

87235

Z721

Z724

85509

85509

87513

87513

Z724

85503

85512

85521

94633 9

4633

86538

85514

85514

86094 8

609

4

86545

86545

94633

94641 9

4641

94633

94630

94630

Z538

Z538

85512

85504

86528

85504

9

4631 9

4630

94630

85519

85519

Z085

Z085

Z538

85518

87500

Z661

86541

86540

75075

85510

86543

865

49

865

50

865

51

865

53

865

54

865

55

Blue

silver

Pink

White

Yellow

Red

87524

86544

85231

85231

85231

85231

Z685

94633

94631

Z216

Z216

A133

A133

Z700

Z700

85230

85230

Z705

Z705

86580

86580

86579

85503

85503

Z216

Z663

Z224

Z224

85510

85510

Z66

3

Z216

Z234

Z234

Z700

Z700

855107

8551010

8551012

85510

1.6T

1.4T

1.41.6

13

Shoc

kAssembly


42/44

Page 42

5-5

Parts # Qty Discription Parts # Qty Discription

2013

3151

4892

50474

6122

6154

6163

6811

75049

75075

75076

75106

77103

85230

85231

85500

85501

85502

85503

85504

85505

85506

85507

85508

85509

85510

85511

85512

85514

85515

85516

85517

85518

85519

85521

86059

86076

86077

86094

86099

86144

86173

86387

86500

86504

86507

86508

86509

86510

86514

86515

86516

86517

86518

86519

86520

86522

86523

86524

86525

86526

86528

86530

86531

86535

86538

86540

86541

86544

86545

86550

86554

86559

86560

86561

86562

86565

86566

86567

86568

86569

86570

86571

86573

STICK BATTERY PACK FOR RECEIVER (6V 1200mAh/Ni-MH)

DISH WHEEL BLACK (88x56mm)

AGGRESSORS TIRE S COMPOUND (139X74mm)

SILICONE TUBE 2x5x300mm

BODY PIN (MEDIUM)

NYLON STRAP (3.5x150mm/BLACK)

SERVO TAPE 20x100mm

O-RING 6x9.5x2mm (Black)

CONCAVE WASHER 4mm

SILICONE O-RING S4 (3.5x2mm)

O-RING S9 (8.5x1.5mm/BLACK)

BODY CLIP (6mm/BLACK)

RACING CLUTCH BELL 13 TOOTH (1M)

ROD END SET 7x45mm

SHOCK SPACER PARTS SET

DIFFERENTIAL CASE

DIFFERENTIAL SHELL SET

CENTER BULKHEAD SET

BULKHEAD SET

ECCENTRIC BUSHING SET

FRONT HUB CARRIER SET (BLACK)

FRONT SPINDLE CARRIER SET

STEERING AND THROTTLE SET

REAR HUB CARRIER SET

SUSPENSION ARM SET

SHOCK PARTS SET

FUEL LINE ACCESSORIES

BULKHEAD ACCESSORY SET

BODY MOUNT SET

SERVO MOUNT SET

CHASSIS BRACE

RADIO BOX SET

SHOCK CAP 20x21.6mm

BUMPER/SKIDPLATE SET

BULKHEAD BRACE SET

BALL 6.8x7.3x3mm (BLACK)

PILOT NUT 1/4-28X8.5mm (BLACK)

COLLET 7x6.5mm (BRASS/21 SIZE)

SCREW SHAFT M4x2x12mm (BLACK)

DIFF CASE WASHER 0.7mm

BALL 6.8x8x3mm

ALUMINUM MOUNT AND RETAINER SET

17mm HEX HUB ADAPTER

HELLFIRE MAIN CHASSIS

AXLE 8x11x36mm

STEERING PLATE (ALUMINUM/PURPLE)

STEERING BUSHING

STEERING POST

HELLFIRE ALUMINUM UPPER DECK

WAVE BRAKE DISC

BRAKE DISK/PLATE SET

BRAKE CAM A (REAR )

BRAKE CAM B (FRONT)

BRAKE LEVER

BRAKE OUTDRIVE CUP 13X31mm

DIFF SHAFT 13x30mm

BEVEL GEAR 42 TOOTH

BEVEL GEAR 10 TOOTH

FRONT LOWER SUSPENSION MOUNT FRONT

FRONT LOWER SUSPENSION MOUNT REAR

REAR LOWER SUSPENSION MOUNT FRONT

REAR LOWER SUSPENSION MOUNT REAR

CENTER BULKHEAD BRACE

FLANGE PIPE 4x8x6mm

TURNBUCKLE M4x80mm

SHOCK TOWER

SHOCK BODY (15x132-86mm)

SHOCK SHAFT 3.5X70mm

BALL 7x6mm

SHOCK MOUNT

SHOCK SPRING 18x80x1.5mm 10.5 COILS (SILVER 89gF/mm)

SHOCK SPRING 18x80x1.8mm 11.5 COILS (YELLOW 177gF/mm)

JOINT 7x35mm

ENGINE PLATE

ENGINE MOUNT

FLYWHEEL 7x34x10mm

COUPLING 14.5x18mm

CENTER FRONT DRIVE SHAFT 8x86mm

CENTER REAR DRIVE SHAFT 8x112mm

DRIVE SHAFT 8x134mm

DRIVE SHAFT 8x132mm

EXHAUST HANGER

BRAKE / THROTTLE ROD 2x68mm

BRAKE SPRING 2x9.5x0.5mm 9coils

1

2

2

1

10

10

5

8

8

12

8

20

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

2

1

1

4

1

1

6

10

4

1

2

1

2

1

2

2

1

2

2

1

1

2

2

2

1

1

1

1

1

1

1

4

2

1

1

2

4

2

2

2

1

1

2

1

1

1

1

1

1

1

2

2

86574

86575

86578

86579

86580

86588

86592

86596

86597

86598

87022

87040

87049

87054

87151

87193

87194

87198

87199

87204

87235

87500

87504

87505

87506

87509

87511

87512

87513

87514

87521

87522

87523

87524

93627

93635

94505

94527

94529

94630

94631

94633

94641

A132

A133

B021

B028

B085

Z082

Z083

Z085

Z086

Z087

Z150

Z216

Z224

Z234

Z260

Z272

Z350

Z352

Z353

Z354

Z360

Z412

Z538

Z543

Z544

Z547

Z659

Z661

Z663

Z685

Z694

Z700

Z705

Z721

Z724

Z740

Z845

Z950

THROTTLE SPRING 2.2x20x0.4mm 23coils

KNURLED COLLAR

TURNBUCKLE M3x31mm

SWAY BAR SET (2.0mm/2.5mm/3.0mm)

SWAY BAR BALL 5.8x10mm (PURPLE)

MULTI WRENCH (M18/M5.5/M3.6)

STEEL SPUR GEAR 52T

TUNED PIPE (HARD ANODIZED)

EXHAUST HEADER (HARD ANODIZED)

WASHER 13x16x0.2mm

FOAM TAPE 25x60mm

SILICONE EXHAUST COUPLING 12x18x30mm (PURPLE)

SHAPED EXHAUST GASKET (21 SIZE)

EXHAUST MANIFOLD SPRING 3.2x75x0.7mm x56

TEFLON CLUTCH SHOE/SPRING SET

4 BEVEL GEAR DIFFERENTIAL CONVERSION SET

SHAFT FOR 4 BEVEL GEAR DIFF 4x27mm

AIR CLEANER (21+ SIZE)

AIR CLEANER SLEEVE SET (FOR #87198)

AIR CLEANER FOAM ELEMENT SET (FOR #87198)

REBUILD KIT FOR UNIVERSAL DOGBONE

BLADDER 16x5mm (FLAT TYPE)

FUEL TANK BUSHING

FUEL TANK (150cc)

SWITCH DUST COVER (BLACK)

AIR FILTER ELBOW (90 DEGREE/21+ SIZE)

SERVO GROMMET

SUSPENSION SHAFT 3x45mm

SUSPENSION SHAFT 4x77.5mm

SUSPENSION SHAFT 3x43mm

BEVEL GEAR SET (20T/10T)

SERVO SAVER SET

INLINE FUEL FILTER

RUBBER BUMP STOP

TURNBUCKLE M5x60mm

TURNBUCKLE M5x75mm

CAP HEAD SCREW M4x12mm

FLAT HEAD SCREW M4x6mm (HEX SOCKET)


TP. FLAT HEAD SCREW M4x12mm (HEX SOCKET)




FLANGED BALL 5.8x7mm

BALL 5.8x6mm

BALL BEARING 5x10x4mm








ANTENNA PIPE SET

BUTTON HEAD HEX SOCKET SCREW M3x15mm

WASHER M3x8mm


PIN 2.5x12mm

PIN 3.0x17mm

BUTTON HEAD SCREW M3x5mm (HEX SOCKET)










NUT M12

LOCK NUT M2.6

LOCK NUT M3

WASHER 2.7x6.7x0.5mm

WASHER M5x10x0.5mm SILVER

SET SCREW M3x3mm

SET SCREW M3x10mm

SET SCREW M4x4mm

SET SCREW M4x8mm (ROUND POINT)

SET SCREW M5x4mm BLACK

CONE WASHER 3x10x3.5mm (PURPLE)

CROSS WRENCH (SMALL)

1

2

1

2

4

2

1

1

1

5

3

1

2

1

3

1

4

1

1

1

1

4

2

1

1

1

8

2

4

2

1

1

1

4

2

2

10

10

10

10

10

10

10

4

4

2

2

2

10

10

10

10

10

1

4

10

10

12

2

10

10

10

10

10

10

6

6

6

6

4

4

6

10

10

6

6

4

6

6

6

1

En Refer to page 38 39 40 41 for parts contents.Parts List


43/44

Page 43

5-5

2013

3151

4892

50474

6122

6154

6163

6811

75049

75075

75076

75106

77103

85230

85231

85500

85501

85502

85503

85504

85505

85506

85507

85508

85509

85510

85511

85512

85514

85515

85516

85517

85518

85519

85521

86059

86076

86077

86094

86099

86144

86173

86387

86500

86504

86507

86508

86509

86510

86514

86515

86516

86517

86518

86519

86520

86522

86523

86524

86525

86526

86528

86530

86531

86535

86538

86540

86541

86544

86545

86550

86554

86559

86560

86561

86562

86565

86566

86567

86568

86569

86570

86571

86573

1

2

2

1

10

10

5

8

8

12

8

20

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

2

1

1

4

1

1

6

10

4

1

2

1

2

1

2

2

1

2

2

1

1

2

2

2

1

1

1

1

1

1

1

4

2

1

1

2

4

2

2

2

1

1

2

1

1

1

1

1

1

1

2

2

86574

86575

86578

86579

86580

86588

86592

86596

86597

86598

87022

87040

87049

87054

87151

87193

87194

87198

87199

87204

87235

87500

87504

87505

87506

87509

87511

87512

87513

87514

87521

87522

87523

87524

93627

93635

94505

94527

94529

94630

94631

94633

94641

A132

A133

B021

B028

B085

Z082

Z083

Z085

Z086

Z087

Z150

Z216

Z224

Z234

Z260

Z272

Z350

Z352

Z353

Z354

Z360

Z412

Z538

Z543

Z544

Z547

Z659

Z661

Z663

Z685

Z694

Z700

Z705

Z721

Z724

Z740

Z845

Z950

1

2

1

2

4

2

1

1

1

5

3

1

2

1

3

1

4

1

1

1

1

4

2

1

1

1

8

2

4

2

1

1

1

4

2

2

10

10

10

10

10

10

10

4

4

2

2

2

10

10

10

10

10

1

4

10

10

12

2

10

10

10

10

10

10

6

6

6

6

4

4

6

10

10

6

6

4

6

6

6

1


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HPI Hellfise SS user manual

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Transcript of HPI Hellfise SS user manual