OFNA Racing LD3 Pro User Manual

LD-3 PRO VERSIONLD-3 PRO VERSION

REQUIRED FOR OPERATION

THINGS NEEDED

Glow Fuel

20%

AA Batteries ( 12 pcs )

#10211 NiHm Flat Pack,
see charger 10214.

You will need to buy a few items to start the engine and run the car.

• Use 20% nitro CAR fuel. Do not use airplane or heli fuels, they will
over heat engine.

• Rear Exhaust .12 engine with SG crankshaft and Slide Carb.

• Buy SHORT glow plugs, OFNA/PICCO Plug (#51007) are long
therefore use two copper washers. Use plugs without idle bar. Always
use two copper washers with Picco glow plugs.

I

You need to get batteries for the radio transmitter and the car receiver packs.

• Radio TX needs (8) eight AA batteries.

• Car needs (4) four AA Ni-cad batteries, Alkaline type batteries will work, but
braking will be reduced. The best is to use a 5 cell hump pack for increased
voltage..

Recommended Option:
You may want to upgrade the car battery pack to a Ni-Cad or NiHm 5 cell

#10212 NiHm Hump Pack,
see charger 10214.

TOOLS NOT INCLUDED IN KIT,
BUT NEEDED TO MAINTAIN YOUR CAR.

Phillips Type Screw Drivers ( L )

Phillips Type Screw Drivers ( S )

Needle Nose Pliers

type(600AE). This will give more run time. OFNA # 10211 or 10212 1000NiMh
Hump Pack and NiHm Battery Charger #10214

Cutter

Curved Scissors

Instant Cement

Cross Wrench
#17109 $3.95

10214
Over-nite
Charger

Diff Oil ­Silicone

Knife

Glow Plug & 17MM Cross Wrench
#10801 $6.95

MUST READ THIS BEFORE RUNNING

Running a nitro kit is fun and easy, but to make this a safe Precautions
and good experience you must observe a few rules. This
kit is extremely fast, easily over 40MPH, and can seriously
injure someone if you are not careful.

Where to run car?

• Any running area you choose must be dry. Do not run
car near any water or wet dirt.

• Do not run on public streets. It is very easy to have the
car run over or damaged by hitting the curb.

• Do not operate car in tight confined places. The car is
very fast and will easily hit something.

• Do not run near people or animals.
and will too easily hit someone.

• Due noise, you will want to consider the surrounding car or property.
area when operating the car.

• Do not operate the car at night. You will not be able to
drive it without hitting something.

• Do not operate the car indoors. Engine exhaust is not flammable and poisonous.
healthy.

Glow Fuel label for additional precautions.

• Glow fuel is poisonous!

• Glow fuel is flammable! • Car Fuel tank - Never store fuel in car tank, it will ruin the

• Do not leave in fuel bottle with lid off at any time.

• Do not use any fuel other than glow fuel in this engine.

First Time Starting the Engine

Caution! When starting engine make sure the following is
observed.

• Set engine Master needle to 3 turns (rich setting)

• Do not do this alone, get an experienced friend to help at
first.

• Fill fuel tank, try not to spill fuel. Do not spill fuel on
receiver

• Hold car off the ground, so it will not runaway when first
starts

• Turn on Radio and check the linkage before starting
engine.

• Turn on car receiver battery switch.

• Always have an air filter on the carburetor to keep dirt
out.

The car is very fast

• This kit is not a toy. Always run car with a second
person as a spotter and pitman.

• Hot Parts - The pipe, manifold, engine and head are very
hot and will cause burns.

• Rotating Parts - Keep hands away from the drive train,
wheels, and engine when engine is running.

• Radio - Check batteries life before running the car. If
radio does not have full control of the car with steering
and/or throttle/brake do not run until corrected. Failure to
correct this will result in possible injury and damage to the

• Glow fuel - Do leave the glow fuel unattended with the lid
off. Fuel contains Methanol and Nitro Methane and is

Store fuel in cool ventilated location. Refer the glow fuel

engine if left in tank.

• Always turn off the car BEFORE turning off radio.

• DAMAGE DUE CAR RUN AWAY IS NOT A WARRANTY
ISSUE.

IF YOU DO NOT BREAK-IN ENGINE
CORRECTLY, MAINLY AT LOW RPM,
YOU WILL BREAK THE CONNECTING
ROD!

FAILURE TO NOT READ AND
FOLLOW BREAK-IN ENGINE

Emergency Stopping Engine When Running

• Remove air filter and cover carb. intake.

• Squeeze fuel line and hold until engine stops.

• With a rag, cover exhaust outlet.

Storing Car After Running

• Remove fuel from tank and fuel lines

• Turn off radio in car

• Put a few drops of after run in engine to keep it from
rusting.

• Clean oil and dirt from chassis with a degreaser.

INSTRUCTIONS WILL VOID
WARRANTY!

CHECK RADIO SETTING AND
LINKAGE BEFORE STARTING

THE NEXT 3 PAGES ARE THE ADDENDUM
INSTRUCTION FOR THE LD-3 PRO KIT

Front Diff

Parts Upgrade

38410 - Front One-Way

PRO FRONT ONE WAY ASSEMBLY

37967
O-Ring

38413
CAP JOINT

37450
10x15x4mm

Ball Bearing

38411
One Way

38412
Large
Bevel Gear
(steel)

94052
M2x6mm
Flat Head
Screw

37450
10x15x4mm
Ball Bearing

38413
CAP JOINT

Standard 4 Diff. Gear

13T

13T

Parts Upgrade

38403 - 6 Gears Diff. Set

Must 12T gear with 6 gear setup.

12T

12T

94052
M2x6mm
Flat Head
Screw

PRO ASSEMBLY OF THE REAR DIFFERENTIAL

Step 1

Step 3

Step 4

Step 1

38255
Cap Joint

37450

10x15mm

Bearing

38252
Diff.Case

38278
5x8x1.5mm

O-Ring

38256
10T Diff.Gear
(small)

38404
3x17.8mm
Cross Pin

38256
10T Diff.Gear
(small)

Step 2

94045
2mm

E-Ring

38278
5x10mm
Washer

38402
12T Diff.Gear
(Large)

94045
2mm

E-Ring

Put the grease into the diff.
case before assembly.

38278
5x10mm
Washer

Step 5

38402
12T Diff.Gear
(Large)

38278
5x8x1.5mm

O-Ring

38416
Large Bevel Gear
(Steel)

37450
10x15mm
Bearing

38287
Diff.Gasket

37967
O-Ring

38255
Cap Joint

94051
M2x6mm

Flat Head
Tapping Screw

39053 Upper & Lower Arms

Parts Upgrade

38399 Upper & Lower Arms (F&R)

38256
10TDiff.Gear

38256
10T Diff.Gear
(small)

38404
3x17.8mm

Cross Pin

(small)

PRO ASSEMBLY OF THE FRONT SUSPENSION

*For the Front knuckle assembly,
please use page 6 of 1.

Front knuckle
arm Assembly

94035
3x8 mm
Set Screw

38399
Front Lower Arm

38399
Front Upper Arm

M2x6mm
Flat Head
Tapping Screw

38268 - Rear Drive Shaft

PRO ASSEMBLY OF THE REAR HUB

Parts Upgrade

CVA Joint

38405

Rear Upper Arms

Parts Upgrade

38399 - Rear Upper Arms

39150
10mm Alum.
Set Screw

39140
8mm
Steering Ball

38266
8mm
Steering Ball
Washer

*Notice the direction
of the steering ball washer.

37430
5x11x4mm
Ball Bearing

38266
Rear Wheel
Hub

PRO ASSEMBLY OF THE REAR SUSPENSION ARMS

Step 1

38399
Rear Lower Arm

Step 2

37450
10x15x4mm
Ball Bearing

38405
CVA Joint

Assembly of the right and left-side are the same.

38399 Rear Upper Arm
Ball End

38399 Rear Upper Arm
Ball End

38398
3x20mm
Turnbuckle

Rear Lower Arms

Parts Upgrade

38399 - Rear Lower Arms

Step 3Step 3

37370
6mm
Ball&Socket

94004
M3x12mm
Screw

Insert the upper arm shaft after assembly the shock tower.

38270

90020

2.5mm
E-Ring

Shock Tower

Step 4

94019
M3x10mm
Flat Head
Hex Screw

38419
Lower Arm Shaft

For assembly front roll bar:

* Use a 3mm drill to drill
a hole in the arm holder
before assembly.

* Use the 0 degree
for rear arm holder.

38263
Arm Holder
(Rear / Rear)

38261
Rear Upper shaft

90020

2.5mm
E-Ring

Assembly of the right and left-side are the same.

38417 - Blade Swaybar Set

38319 - CHASSIS 2.5mm

Parts Upgrade

38489 - CHASSIS 3.0 mm Ld3 Pro

3 Shoes Flywheel 34mm, Pull Start

38284 -

Parts Upgrade

PRO ASSEMBLY OF THE STABILIZER INTO ARM BLOCK

* Assembly the rear anti-roll bar same as the front.

94033

Step3

M3x3mm
Set Screw

38419
3x55mm
Lower Arm
Shaft

Step1

M3x15mm
Screw

38418rs
Mount

38418
Stabilizers
Balance
Adjuster

94033
M3x3mm
Set Screw

* Keep stabilizer ball in the center.

94033
M3x3mm
Set Screw

Step2

38418
Stabilizers
Mount

94005
M3x15mm
Screw

38420
Stabilizers
blades

ASSEMBLY OF THE FLYWHEEL

SG Type Engine

10330
Split Cone

38285
3 Shoes Flywheel
(Small/30mm)

10100

Clutch Spring

10010
Clutch Shoes

Center

* Turn stabilizer balance adjuster to
adjust the stabilizer to the same angle.

* Place the clutch shoes
with the clutch springs
over the 3 pins of the
flywheel.

Using a small screw driver
or needle nose pliers and push
the small end of the clutch
spring behind the pilot shaft
nut and down.

If installed correctly, the shoes
will be held in with spring
tension.

- 3 Shoes Flywheel, non-pull Start

38285

(Small/30mm)

10063 - polished 6 Ring Pipe

38286 - Side Exht Manifold

Parts Upgrade

38475 - Polished
IN-LINE REAR EXHAUST PIPE

Pull Start Engine Mounts
#38150
Non-Pull Start Engine Mounts
#38453

10098
SG
Clutch Nut

PRO ASSEMBLY OF THE MANIFOLD AND MUFFLER

38477 - Manifold
In-Line Rear Exhaust Manifold
Polished

97501
Manifold Spring

* Put the clutch spring into the groove
of the clutch shoesbefore assembly.

10121
Manifold Spring

38476 - Pipe
In-Line Rear Exhaust Manifold
Polished

FOLLOWING PAGES INCLUDE ASSEMBLY
FOR LD-3 RTR AND LD-3 PRO

ASSEMBLY OF THE 4 GEAR DIFFERENTIAL

(Build two differentials for front and rear.)

Step 1

Step 3

38255
Cap Joint

37450
10x15x4mm
Ball Bearing

94051
M2x6mm

Flat Head
Tapping
Screw

2mm
E-Ring

O-Ring
5x8x1.5mm

38252
Diff.Case

38278

5x8x1.5mm

O

38278

38253

3x17.8mm
Pin

5x8x0.8mm

5x10mm

Washer

Washer

Step 2

5x10mm
Washer

38256
10T Diff.Gear
(small)

Put the grease into the diff. case
before assembly.

38256

10T Diff. Gear

(small)

2mm

E-Ring

37771
13T
Diff. Gear

2mm
E-Ring

37771
13T
Diff. Gear

(Large)

37771
13T Diff. Gear
(Large))

(Large)

5x10mm
Washer

Step 4

37450
10x15x4mm
Bearing

O--RRiinngg

38278
5x8x1.5mm

38255
Cap Joint

38257
Large
Bevel Gear

38257
Large
Bevel Gear

37450
10x15x4mm
Ball Bearing

38287
Diff.Gasket

Note: Peel off backing

38253
3x17.8mm
Pin

38255

Cap Joint

M2x6mm
Flat Head
Tapping Screw

38256
10T Diff.Gear
(small)

ASSEMBLY OF THE FRONT GEAR BOX

(Build a gear box for front.)

NOTE: DIFF GEARS AND PINION WILL
FEEL ROUGH UNTIL YOU RUN CAR. DO
NOT SHIM GEAR CASE FOR
SMOOTHNESS OTHERWISE GEAR WILL
STRIP.

38251

Step 1

Gear case

3x3mm
Set Screw
94033

90020

2.5mm
E-Ring

38254
12x15x0.25mm
Shim

38258

37430

16T
5x11x4mm
Ball Bearing

*Adjust the backlash

Bevel Gear
(small)

*Use 2 pcs in this side.

with the shim*

E-Ring

16T

90020

2.5mm

38259

16T

5x8x0.8mm
Washer (important)

38258

Bevel Gear
(small)

Bevel Gear

(small)

Shaft

16T

38259

3x3mm
Set Screw

Bevel Gear

(small)

Shaft

* Put the gear in the
right position.

37430
5x11x4mm
Ball Bearing

37430
5x11x4mm
Ball Bearing

M2x6mm
Flat Head
Tapping Screw

38260
Bevel Gear

16T

Cap Joint

*Check the right space
between two ball bearings.

ASSEMBLY OF THE FRONT GEAR BOX

(Build a gear box for front.)

Step 2

* The gear box after assembly.

38251
Gear Case

38251

Gear Case

M2.6X10mm
Screw
94050

M3X12mm
Screw
94004

M2.6X10mm
Screw
94050

M2.6X10mm
Screw
94050

38321

M3X12mm

Screw
94004

ASSEMBLY OF 2-SPEED CLUTCH TRIGGER DISC

SCREW AS SHOWN,
LEVEL WITH HOLE EDGE

SCREW AS SHOWN,
LEVEL WITH HOLE EDGE

SET BALL TO REST ON CAM, NOT PUSHING. IF
TOO TIGHT, THE BALL WILL PUSH ON CAM
SPREADING SHOE DISC AND WILL NOT FIT
INTO ALUM. CLUTCH BELL #38296

CARE MUST BE TAKEN TO BUILD
THIS ASSEMBLY CORRECTLY,
OTHERWISE 2-SPEED WILL NOT
ADJUST AND MAY NOT WORK AT ALL.
IN FACT, IF 2-SPEED DOES NOT
SHIFT, CHECK OUT THIS ASSEMBLY!.

Step 2

M2x10mm

Screw

3x3mm

38313

Spring

Set Screw

38312

Clutch Shoe

M2x10mm
Screw

ASSEMBLY OF THE TWO SPEED GEAR

Step 1

4x4mm

Set Screw

38323

2 Speed Main Shaft

94034
4x4mm

Set Screw

Note: Must use Locktite

38316

Clutch Shoe
Carrier

38312

Clutch Shoe

38315

Metal Ball

94033
3x3mm

Set Screw

38315

Metal Ball

38313

Spring

94033
3x3mm

Set Screw

38313

Spring

3x3mm
Set Screw

M2x10mm

Screw

ASSEMBLY OF THE TWO SPEED GEAR

Step 3

38300
38T
Spur Gear

38T

Step 4

M3x4mm
screw

37400
2x8.8mm
Pin

38295
1 st Gear Carrier

38279
3x14.8mm
Pin

38296

2nd Gear
Clutch Bell
(Ball Bearing)

(One-Way)

37430
5x11x4mm
Ball Bearing

38301

42T
Spur Gear

42T

38258
16T
Bevel Gear
(Small)

90020

2.5mm

E-Ring

38297
Retaining Ring

38297

Retaining Ring

38258

16T
Bevel Gear
(Small)

90020

2.5mm
E-Ring

*Insert the 382790 into
Break disc mount.

38279
3x14.8mm
Pin

38289
Brake Disc

Mount

38321
M3x4mm

screw

Note: Must use Locktite

37430

5x8mm
Washer

5x11x4mm
Ball Bearing

40042
Brake Disk

*Put the brake disk on
before assembly

37400
2x8.8mm
Pin

38289
5x8mm
Plastic

37430

5x11x4mm
Ball Bearing

5x8x0.8mm
Washer

37430
5x11x4mm

Ball Bearing

ASSEMBLY OF THE BRAKE AND DIFF.MOUNT

*Take off the double sided tape

before assembly.

1

94004
M3x12mm

Screw

94049
M2.6x8mm
Screw

ASSEMBLY OF THE BRAKE AND 2-SPEED

40044

Spring

M3x12mm
Screw

2

38271
Brake Pad

1

38272

Brake Pad
Linings

2

M2.6x8mm
Screw

38272
Brake Pad
Linings

38271
Brake Pad

40044
Blake Pad
Spring

38289
Bulk Head

cover

38289
Plastic Bushing

38273
Brake Cam

38289
Brake Mount/Upper

Note: Cam will fit in one
direction. Check step.2
on page 9. Note plastic
stop tab on backside.

94005
M3x16mm

Screw

94005
M3x16mm

Screw

38289
Brake Mount/Lower

ASSEMBLY OF THE REAL GEAR BOX
(Build a gear box for real)

*Adjust the backlash

with the shim.

*Use 2 pcs in this side.

Step 1

Step 2

DIFFERENTIAL

38254
12x15x0.25mm
Shim

94050
M2.6x10mm

Screw

ASSEMBLY

* Add Gear Grease before
closing gear case.

94004
M 3x12mm

Screw

38254
12x15x0.25mm
Shim

37430

5x11x4mm
Ball Bearing

38251
Gear box

94050
M2.6x10mm

Screw

38251

Gear box

94004
M 3x12mm

Screw

Screw

Note: Do not over tighten screws

94050
M2.6x10mm

Screw

ASSEMBLY OF THE FRONT KNUCKLE ARMS AND CVA SHAFT

Assembly of the right and left-side are the same.

*Make steering
ball move smooth.

39150
10mm
Hex Screw

39190

CVA
Constant Velocity
Axle

37450
10x15x4mm
Ball Bearing

37430
5x11x4mm
Ball Bearing

Step 2

*"L" make are for
left-side.

37450
10x15x4mm
Ball Bearing

38265
Front Knuckle Arm
(Left)

37430
5x11x4mm
Ball Bearing

39140
8mm
Steering Ball

39141
8mm
Steering Ball
Washer

ASSEMBLY OF THE FRONT SUSPENSION ARMS

39140
8mm
Steering Ball

39150
10mm
Hex Screw

*Notice the
direction hex screw.

Step 1

*Push 2 ball bearings into
knuckle arm as shown.

38265
Front Knuckle Arm
(Right)

Assembly of the right and left-side are the same.

94035
3x8 mm
Set Screw

94035
3x8 mm
Set Screw

39060
Front Lower Arm

39053
Front Upper Arm

FRONT KNUCKLE
ARM ASSEMBLY.

FRONT KNUCKLE
ARM ASSEMBLY.

39060
Front Lower Arm

39053
Front Upper Arm

ASSEMBLY OF THE REAR WHEEL HUB

Assembly of the right and left-side are the same.

39150
10mm
Hex Screw

*Notice the direction
of the steering ball washer.

Step 1

37430
5x11x4mm
Ball Bearing

39150
10mm
Hex Screw

37450
10x15x4mm
Ball Bearing

39140
8mm
Steering Ball

ASSEMBLY OF THE REAR SUSPENSION ARMS

94004
M3x12 mm
Screw

37370
6 mm
Ball and Socket

94035
3x8 mm
Set Screw

(Right Side)

* Take the upper arm plastic
rod end from shock plastic tree.

37370
6 mm

37100
Upper Arm
Plastic Rod End

Ball & Socket

39141
8mm
Steering Ball
Washer

94035
3x8 mm
Set Screw

39140
8mm
Steering Ball

REAR UPPER ARM

Approx 46 mm

37430
5x11x4mm
Ball Bearing

(Left Side)

38266
Rear Wheel
Hub

Step 2

Assembly of the right and left-side are the same.

* Take the upper arm plastic
rod end from shock plastic tree.

37370
6 mm
Ball & Socket

Push

*Push 2 ball bearing into
rear wheel hub as shown.

37450
10x15x4mm
Ball Bearing

37100
Upper Arm
Plastic Rod End

M3x12 mm
Screw

Push

38267
Rear Wheel

Axle Shaft

37210
3x15mm
Turnbuckle

94004
M3x12 mm
Screw

Right

37210
3x15mm
Turnbuckle

37100
Upper Arm
Plastic Rod End

Left

3x8 mm
Set Screw

37100
Upper Arm
Plastic Rod End

ASSEMBLY OF THE SEVRO SAVER

Step 1

94041
M3
Nylon Nut

37360
4mm
Ball & Socket

94003
M3x10mm
Screw

94004
M3x12mm
Screw

38288
Servo Saver
Spring

36742

Servo Saver
Bushing

38276
3x6 mm
Brass Bushing

38277
5x8 mm
Brass Bushing

38276
3x6x2.4 mm
Brass Bushing

37360
4mm
Ball & Socket

36742
Servo Saver
Bushing

94004
M3x12mm
Screw

38289
Servo Saver

94004
M3x12mm
Screw

38276
3x6x2.5 mm
Brass Bushing

94041
M3
Nylon Nut

38289
Servo Saver

94004
M3x12mm
Screw

37360
4mm
Ball & Socket

38288
Servo Saver
Spring

36742
Servo Saver
Bushing

37360
4mm
Ball & Socket

* Use the long ball end for both

Step 2

*Made two steering rod
for left and right hand side.

steering rod and steering servo rod.

37650
4mm
Ball End

A

38281
3x40mm
Turnbuckle

A

Steering Rod

Approx 57 mm

Steering Servo Rod

B

37650
4mm
Ball End

37650
4mm
Ball End

38280
3x36mm
Turnbuckle

37650
4mm
Ball End

38277
5x8x2.5 mm
Brass Bushing

Step 3

A

38289
Servo Saver

* Snap on steering rod to
4mm ball & socket.

38277
5x8x2.5 mm
Brass Bushing

38289
Servo Saver

* Snap on steering rod to
4mm ball & socket.

A

* Snap on steering rod to
4mm ball & socket.

B

B

Approx 54 mm

The servo saver after assembly.

ASSEMBLY OF THE SEVRO SAVER
ANDSTEERING RODS

38275
Servo saver
Screw

94041
M3
Nylon Nut

94018
M3x5mm
Flat Head
HexScrew

94041
M3
Nylon Nut

38319
Chassis, Stock RTR

Note: Use Lock-tite

94018
M3x5mm
Flat Head
Hex Screw

38275
Servo saver
Screw

M3x10mm
Flat Head
Hex Screw
94019

Front Gear Box Assembly.

M3x10mm
Flat Head
Hex Screw

94019

38263
Arm Holder
(Lower/Rear)

M3x10mm
Flat Head
Hex Screw

0 Degree

ASSEMBLY OF THE FRONT BLOCK ONTO CHASSIS

38262
50mm
Lower Arm Shaft

*Insert the drive shaft before assembly.

38263
Arm Holder
(Front/Lower)

0 Degree

M3x10mm
Flat Head
Hex Screw

M3x10mm
Flat Screw

94019
M3x10mm
Flat Head
Hex Screw

37360
4mm
Ball & Socket

38262
50mm
Lower Arm Shaft

37360
4mm
Ball & Socket

Assembly of the right and left-side are the same.

38263
Lower Arm Holder for 0 and 1.5 and 2.5 degree.

ASSEMBLY OF THE ARM
HOLDER ONTO CHASSIS

M3x10mm
Flat Screw

38263

Arm holder
(Rear/Front)

94019
M3x10mm
Flat Head
Hex Screw

1.5 Degree

ASSEMBLY OF THE TWO SPEED
AND REAR GEAR BOX ONTO CHASSIS

* Insert the center drive shaft
before assembly the rear gear onto
chassis.

38264

Center Drive Shaft

94024
M3x30mm
Flat Head
Hex Screw

94024
M3x30mm
Flat Screw

94019
M3x10mm
Flat Screw

94019
M3x10mm
Flat Head
Hex Screw

ASSEMBLY OF THE REAR ARM HOLDER

38262

94019
M3x10mm
Flat Screw

50mm
Lower Arm Shaft

94019
M3x10mm
Flat Head
Hex Screw

38262
51mm
Lower Arm Shaft

94019
M3x10mm
Flat Head
Hex Screw

38263
Arm Holder
(Rear / Rear)

0 Degree

Assembly of the right and left-side are the same.

ASSEMBLY OF THE STEERING SERVO AND
THROTTLE SERVO

ASSEMBLY OF THE RADIO TRAY

Step 1

Step 2

38290

Radio Tray

M3X8mm
Hex Screw

94003
M3X10mm
Hex Screw

10769
Servo
Horn Adapter

94003
M3X10mm
Hex Screw

38289
Servo Adapter

38289
Servo Post

94003
M3X10mm
Hex Screw

Screw

THROTTLE
SERVO

*Use the screw provided
from your servo.

10768
Steering
Servo Horn

37360
4mm
Ball & Socket

94003
M3X10mm
Hex Screw

38289

Servo Post

38289
Servo Adapter

Step 1

Step 2

94047
M2X 6mm
Hex Screw

Receiver

37410
Body Clip

38292

Receiver Box

You can use flat or hump or
4 cell RTR battery packs in
battery box

94047
M2X 6mm
Hex Screw

Battery

37410
Body Clip

38317
Battery Cover

38318

¹q¦À²°»\

Lid, Battery Cover
with Failsafe unit

¹q¦À²°»\

94003
M3X10mm
Hex Screw

94003
M3X10mm
Hex Screw

Steering Servo

A

M3X8mm
Hex Screw

38290
Sevro Post

A

Switch

Align the servo horn in 90 degree.

*Use the screw provided

Screw

from your servo.

Degree

90

10280
Switch

94047
M2X 6mm
Hex Screw

ASSEMBLY OF THE RADIO TRAY ONTO CHASSIS

The picture show of the radio assembly
from left-side .

94019
M3x10mm
Flat Head
Screw

94002
M3x8mm
Screw

94002
M3x8mm
Screw

B

94019
M3x10mm
Flat Head
Screw

94002
M3x8mm
Screw

94019
M3x10mm
Flat Head
Screw

94002
M3x8mm
Screw

C

A

ASSEMBLY OF THE STIFFENER

94019
M3x10mm
Flat Head
Screw

38290
Front Stiffener

94019
M3x10mm
Flat Head
Screw

94002
M3x8mm
Screw

94002
M3x8mm
Screw

Front Gear Box

94002
M3x8mm
Screw

Rear Gear Box

38290
Rear Stiffener

94019
M3x10mm
Flat Head
Screw

ASSEMBLY OF THE FRONT SHOCK TOWER
AND FRONT UPPER ARM

94002
M3x8mm
Screw

94004
M3x12mm
Screw

90020

2.5mm
E-Ring

Insert the front caster into front upper arm.

39141
Caster Angle
Adjuster(1.5mm)

ASSEMBLY OF THE REAR SHOCK TOWER
ONTO REAR GEAR BOX

94004

94002

M3x12mm

M3x8mm

Screw

Screw

94004
M3x12mm
Screw

94004

90020

2.5mm
E-Ring

38261
Front Upper
Arm Shaft

M3x12mm
Screw

94002
M3x8mm
Screw

38270

Shock Tower

Assembly of the right and left-side are the same.

ASSEMBLY OF THE REAR DRIVE SHAFT

90020

2.5mm
E-Ring

38270

Shock Tower

Assembly of the right and left-side are the same.

ASSEMBLY OF THE FUEL TANK
ONTO CHASSIS

38335
Fuel Nipple

94002
M3x8mm
Screw

37370
6mm
Ball & Socket

94006
M3x18mm
Screw

37370
6mm

Ball & Socket

94041
M3
Nylon Nut

*Insert the rear drive shaft
before assembly.

94006
M3x18mm
Screw

Assembly of the right and left-side are the same.

38268
Rear Drive
Shaft

94019
M3x10mm
Flat Head
Hex Screw

Step 2

94019
M3x10mm
Flat Head
Hex Screw

Step 1

3x3mm
Set Screw

38293
Fuel Tank

ASSEMBLY OF THE ENGINE

94041
M3
Nylon Nut

3X8 mm
Washer

35958
5x8x2.5mm
Ball Bearing

5x10x4mm
Ball Bearing

38313
7mm
tapered cone

10098
SG
Clutch Nut

SG Crank Shaft

38285

When installing an engines with a SG cranks shaft, you must use the
#180D clutch nut and 7mm tapered cone.

Flywheel, SG

M3x5mm
Screw

M3x12mm
Screw

59020

Pilot Shaft

* Place the clutch shoes
with the clutch springs
over the 3 pins of the
flywheel.
Using a phillips screw driver
or needle nose pliers and bend
the small end of the clutch
spring behind the pilot shaft
#176D or #180D than press
down.

ASSEMBLY OF THE 2-SPEED CLUTCH BELL

38284
Threaded

3 Shose Flywheel

* Put the clutch spring into the groove
of the clutch shoesbefore assembly.

10100

Clutch Spring

10010

Clutch Shoes

59020
Threaded

Pilot Shaft

Note: For Single Speed Assembly, see
back APPENDIX pages!

34110
5x10x4mm
Ball Bearing

35951
Clutch Bell

35945
20T-2nd
Clutch Gear

35944
16T-1st
Clutch Gear

*Put the 35958 before assembly
the clutch gear.

35958

5x8mm
Ball Bearing

3X8 mm
Washer

M3x5mm
Screw

ASSEMBLY OF THE ENGINE
ONTO ENGINE MOUNT

38150
M3x12mm
Hex Screw

38150
M3
Nylon Nut

38150
M3x12mm
Hex Screw

ASSEMBLY OF THE MANIFOLD

94007
M3x20mm
Cap Screw

38162
Manifold Gasket

94007
M3x20mm
Cap Screw

38150
Engine Mount

*Put the nylon nut
into the groove of the
engine mount.

38150
M3
Nylon Nut

ASSEMBLY OF THE ENGINE ONTO CHASSIS

94003
M3x10mm
Screw

38286
Side Exhaust
Manifold

Note book Paper.

* Use the note book paper to set gear backlash
between Spur Gear and Clutch Bell Gear.
* If the space is not correct, the spur gear will
be damaged.

2 Speed
Spur Gear

90 Degree

2 Speed Bell

94003
M3x10mm
Screw

M3x10mm
Screw

* Loose or tighten 3x12mm cap screw
to align spur gear and clutch bell gear
to 90 degree.

ASSEMBLY OF THE BRAKE LINKAGE

( For slide carburetor. )

3x3mm

3x3mm
Set Screw

Set Screw

Step 1

30530
Throttle
Ball End

Step 3

M2x12mm
Screw

3x3mm
Set Screw

Step 2

10300
Alum.
Stopper

Throttle
Spring

36130
Throttle
Slider

38180
Throttle
Rod

3x3mm
Set Screw

30171
2mm
Rod

10300
Alum.
Stopper

10300Alum.
Stopper

* Take the 2mm plastic washer from
the shocks plastic tree.

ASSEMBLY OF THROTTLE HORN INTO SERVO AND BRAKE LEVER

2mm
Plastics Washer

10768

Servo Horn

10769
Sevro Horn
Adapter

94033
3x3mm
Set Screw

*Use the screw provided from your servo.

Screw

38274

Brake Lever

THROTTLE
SERVO

* Align the throttle servo horn in 90 degree.

* Attach the throttle ball end onto
the throttle ball on the carburetor

ASSEMBLY OF THE MUFFLER

Step 1

10063
Muffler

90012
Pressure
Nipple

38320

Silicone Tube

Nylon Strap
8 inch

Step 2

94034
4x4mm
Set Screw

38327
Muffler Stay

3x8mm
Washer

94003
M3x10mm
Screw

INSTALLATION OF AIR FILTER

* Insert the filter into air filter holder.
Apply filter oil to the sponge before
use.

39474
Air Filter
Sponge

39473
Air Filter
Holder

Small Strap

ASSEMBLY OF THE FUEL TUBE AND
PRESSURE TUBE

*Connect to muffler
pressure nipple.

10179 - Blue
10178 - Yellow

Fuel Tube

*Connect to fuel tank
pressure nipple.

*Connect to fuel nipple.

*Connect to carbureter.

ASSEMBLY OF THE ALUMINUM THREADED BODY SHOCKS

NOTE: LEXAN SHOCK ASSEMBLY, SEE APPENDIX PAGES

* Insert the o-ring into
the groove of the adjust nut.

Step 1

37967

C-Ring

* The C-Ring must fit into
the groove.

39030 - Lexan Shock Body.
37965 - Alum Threaded Shock Body.

37967

37100

P3

Washer

O-Ring
(2 pcs)

(Block)

FlLLING THE SHOCKS WITH OIL

37080

Shock Oil

Oil

Pressure Top

38325

Shock Shaft

2mm E-Ring

37100
Piston

* Use the No.2 hole piston
from shock plastic tree.

Step 2

*Use a little shock oil to
lubricate o-Rings before
screwing on adjusting nut.

37650
4mm
Ball End

OilOilOil

* Use the short ball end .

ASSEMBLY THE SHOCK SPRING

38330 - Gray
SHOCK Cap

37100
Ball End
( Short)

* Use the short shock
ball end.

37966

P12 O-Ring

38331 - Gray
Adjust Nut

*Pull down piston and pour
oil into shock cylinder.

*Remove air bubbles by slowly
moving piston up and down.

ASSEMBLY OF THE FRONT SHOCK INTO
SHOCK MOUNT

38329
Gray
6mm Alum.
Ball & socket
(Short)

M3x12
Screw

38326 - Black (std)

Shock Spring

37100
Spring Holder

38469 - Spring Set
38470 - Blue (s)
38471 - Yellow (m)
38472 - White (h)

ASSEMBLY OF THE FRONT SHOCK INTO
SHOCK MOUNT

M3x12
Screw

38282
6mm Alum.
Ball & socket
(Long)

* Snap On.

37360
4mm
Ball & socket

37360
4mm
Ball & socket

* Snap On.

ASSEMBLY OF THE FRONT BUMPER

38291
Front Bumper

94019
M3x10mm
Flat Head
Hex Screw

ASSEMBLY OF THE FRONT BUMPER TOP PLATE

38291
Front Bumper
Top Plate

38291
Front Bumper
Post Tube

ASSEMBLY OF THE FRONT BODY POST

39320
Body Post
(Front)

94003
M3x10mm
Screw

94002
M3x8mm
Screw

39320
Body Post
(Front)

94003
M3x10mm
Screw

ASSEMBLY OF THE REAR BODY POST

M3x12mm
Screw

39320 PARTS

xx

G

39320
Body Post
(Rear)

94004
M3x12mm
Screw

38294
Foam Bumper

* Insert body pins into body holder
to the desired height.

37410
Body Pin

39320
Body Holder

ASSEMBLY OF THE TIRES AND WHEELS ASSEMBLY OF THE WHEELS ONTO FRONT

KNUCKLE ARM AND REAR HUB

Step 1

Step 1

(FRONT ASSEMBLY)

37390
2x 10.8 mm pin

37590 - PLASTIC

38328 - Alum. W/ Oring

Driver Nut

*Insert the inner Sponge before

*Insert the inner Sponge before
assembly.

assembly.

Step 2

*Insert wheel into tire.

87660
Radial Body

MOLDED FOAM INSERTS
87658 - BLUE
87659 - YELLOW

Super Glue

Inner Sponge

Step 2

(REAR ASSEMBLY)

10986
4mm
Nylon Nut

Step 3

87610 -White

“Y” Spoke Wheel

*Apply instant cement.

37390
2x 10.8 mm pin

37590 - PLASTIC

38328 - Alum. W/ Oring

Driver Nut

PLUG ANTENNA PIPE INTO ANTENNA POST

10986

4mm
Nylon Nut

30560
Antenna pipe

SETTING GUIDE

FRONT AND REAR
TOE- IN AND TOE- OUT SETTING

Neutral Position

Toe-In

Rear
Toe-In

Toe-OutToe-Out

Front
Steering Rod

Rear
Toe-In

2.5mm Allen
Wrench

* Use a 2.5mm allen wrench to adjust toe-in for front and rear.

Adjust the length of front steering rod to change the
toe angle.

Making the steering rod longer will make the front tires toe-in.
Response will be slower and will over steer.
Making the steering rod shorter will make the front tires toe-out.
Response will be quicker and will under steer.

We recommended adjust the front toe-out in 1.5 degree.

Adjust the length of the rear hub (8mm ball) to change
the toe angle.
Making the 8mm ball longer will make the rear tires toe-in.
Response will be under steer.
Making the 8mm ball shorter will make the rear tires toe-out.
Response will be over steer.

We recommended adjust the rear toe-in is 2 degree.

FRONT AND REAR CAMBER ANGLE SETTING

Note: Place the model car on a flat surface . Raise the chassis to it's
maximum clearance before the wheels leave the ground.
Adjust length of the front and rear lower ball so that the wheels
are at right angles to the ground.

* Use 2.5mm hex wrench
to adjust upper arm ball
in front.

(FRONT) (REAR)

Positive PositivePositive Positive

The front camber adjustment can be made by moving the 8mm
steering ball at the front upper arms on knuckles, clockwise or
counter-clockwise.
We suggest using 1.5 degree of negative camber for the rear.

Negative

- -

+ +

Negative

- -

+

Adjust the length of the turnbuckle on
can be change the rear camber.
We suggest using 2 degree of negative camber for the rear.

Negative

* Use a tool to adjust the
length of

the turnbuckle

rear upper arms .

on the

Turnbuckle

Negative

+

the rear upper arms

SETTING THROTTLE LINKAGE

* ADJUSTING THROTTLE LINKAGE BEFORE START THE ENGINE

1. Turn on your transmitter at first and then the car's electronics (Set the transmitter trim-level in center).
Adjust the alum. stopper A to made the carburetor in idle position. Adjust the alum. stopper B to
leave 2mm space between alum. stopper and brake level.

2. Pull the full throttle trigger. The carburetor should be almost full open.

3. Apply the brake with your transmitter trigger, your carburetor should in idle position. The spring
between the alum. stopper and ball end should be compressed.

FOR SLIDER CARBURETOR

IN IDLE POSITION

* Carburetor at idle
position.

Brake Level

2mm space

FOR ROTARY CARBURETOR

IN IDLE POSITION

* Carburetor at idle
position.

IN BRAKE POSITION

* Carburetor at idle
position.

* The spring should be
compressed.

A

B

IN BRAKE POSITION

* Carburetor at idle
position.

* The spring should be
compressed.

IN FULL THROTTLE POSITION

* Carburetor at full
throttle position.

IN FULL THROTTLE POSITION

* Carburetor at full
throttle position.

Brake Level

2mm space

B

Notes:

1) Always check and change radio batteries when low. Running your car with low batteries
will greatly shorten the radio range. Loss of radio control will damage your car and is not
covered under warranty.

2) Check linkage operation for steering and throttle before starting your car. The directional
servo switches on radio may be in the wrong position and must be checked and set for
proper operation.

3) Battery problems are the biggest cause of car damage, always check radio operation when
running. If you feel the radio is not working correctly, shut down engine immediately and
check it out!

INSTRUCTIONS

#38322 SPEED TRANSMISSION

ADJUSTING THE SHIFT POINT

* Adjust the engine before adjusting the clutch shift timing.
Adjust the engine as per engine instruction manual.

M2x10
Hex Screw

Clockwise
(Tighten)

Counter-clockwise
(Loosen)

M2x10mm

3x3mm
Set Screw

* Use a 1.5mm allen wrench to
set the clutch shoe.

* Adjust the 3x3 set screw witch is used
to the distance between the clutch

adjust

shoe and clutch bell.
* Adjust the M2 x 10mm hex screw will be

change the shift timing of the clutch
shoe.

Hex Screw

1.5mm
Allen Wrench

SHIFT UP TIMING ADJUSTMENT

1. Once the engine adjustments have been completed, proceed to the
adjustment of the clutch shoe shift timing.
(Using a 1.5mm allen wrench to adjust the clutch shoe on either side.)

Note:
Clockwise--------Shift timing will become slower.
Counter-clockwise---Shift timing will become quicker.

2. Adjust the clutch shift timing for your track conditions.
As you tighten (Clockwise) the 2x10mm screw , the shift timing will
become slower.
As you loosen (Counter-clockwise ) the 2x10mm screw, the shift timing
will become quicker.

3. Set the shift timing to the track conditions while the car is running.

Here

NOT Here, at ball set screw!

2 SPEED GEAR RATIO COMBINATIONS

IMPORTANT:
The sum of the spur gear and clutch gear for1st gear must be equal.
Also, he sum of the spur gear and clutch gear for 2nd gear . be equal

44T/40T

43T/39T

42T/38T

41T/37T

¤j¾¦

44T/39T

43T/38T

42T/37T

1st gear 45+13=58
2nd gear 41+17=58

(4 tooth difference - OFNA standard)

16T/20T

16T/21T

Must be equal

CLUTCH GEAR

17T/21T 18T/22T 19T/23T

CLUTCH GEAR

(5 tooth difference)

17T/22T 18T/23T 19T/24T

Example:

( STANDARD)

SPUR GEAR

(MODIFY)

SPUR GEAR

2 SPEED OPTION PARTS

SPUR GEAR:

Number

38298 37T Spur Gear, Gray 1st
38299 41T Spur Gear, Gray 2nd

Short Track

Torque

38300 38T Spur Gear, Gray 1st
38301 42T Spur Gear, Gray 2nd
38302 39T Spur Gear, Gray 1st
38303 43T Spur Gear, Gray 2nd
38304 40T Spur Gear, Gray 1st

Long Track

Top Speed

38305 44T Spur Gear, Gray 2nd

CLUTCH GEAR:

Number

Short Track

Torque

Long Track

Top Speed

35944 16T-1st Clutch Gear
38306 17T-1st Clutch Gear
38307 18T-1st Clutch Gear
38308 19T-1st Clutch Gear

35945 20T-2nd Clutch Gear
35946 21T-2nd Clutch Gear
38309 22T-2nd Clutch Gear
38310 23T-2nd Clutch Gear
38311 24t-2nd Clutch Gear

Description

Description

* Also 2 tooth and 5 tooth differences are possilbe, but not shown..

APPENDIX PAGES

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