Setup Sheets
Kit Instructions/Manuals
Option Parts Instruction Sheets
(Electric)
Option Parts Instruction Sheets (Nitro)
Nitro Star Engine Tuning and Assembly
Sheets
Instruction Walk-Throughs
Maintainence Tips for your car or truck
Instruction Walk-Throughs
Kits
Electronics
Having
trouble printing?
TX-1 Radio (included with some
HPI RTR kits)
Tomahawk Reverse ESC
You may need the Adobe Acrobat Reader to view some of the instructions.
Option Parts (Electric)
#72490 Micro Dual Link Tie Rod Set Instructions
Page
1 (JPG) Installation of servo on servo plate
Page
2 (JPG) Installation of servo plate and tie rod links
#72450 Micro Ball Diff Instructions
Click here
for JPG
#72455 Micro Front One-Way Diff. Instructions
Click here for JPG
Dowload our Micro Tire Choice Guide!
Click here
for PDF
Click here for
JPG
Wondering when to use what tire? Use this handy guide!
HPI Spring Rate Chart
Spring Rate
Chart (Jpeg File) - 372 KB
Color coded for easy identification, this spring rate chart will help
you select the right springs for fine-tuning your HPI car! Exclusively
for HPI springs, with tuning suggestions for Nitro and electric sedans
and Mini cars. The spring rates were determined with the springs compressed
15mm each.
Electric Gear Ratio Chart
Electric Car
Gear Ratio Chart (PDF, 92 KB)
For the Pro 3 Gearing and Spring charts, click
here! (JPEG image)
The charts print out perfectly on a single page and there are three
sets of charts on the page, so you can cut the page into conveniently
sized parts and tape them to your tool box, parts tray, setting board,
etc.
#A507 Slipper Clutch Set
Slipper Clutch
Set (PDF file) - 935 KB
#A297 2 Speed Transmission Set for Pro/Sport/Rally
(GIF image) -
169 KB
(PDF file) - 163
KB
#A508 32T Ball Diff Set for RS4 Mini/Sport/Rally/Sport 2
(JPG image) -
211 KB
#A905 39T Ball Diff Set for RS4 MT
(JPG image) -
263 KB
 You
may need the Adobe Acrobat Reader to view some of the instructions, click
here if you don't have it loaded on your system yet.
Having
trouble printing?
Option Parts (Nitro)
Rotostart
Instructions for Nitro 12 Engines
Instructions for Savage Engines
Savage Monster Truck
option gearing chart
#72516 Heavy Duty 2 Speed Transmission
for Nitro RS4, Nitro RS4 2, Nitro RS4 RTR, Nitro Racer, Nitro Racer 2
Page
1
Page
2
Page
3
Page
4
#87032 Reverse Module (Savage)
Exploded
view and parts listing
#87150 Dual Disk Brake Set (Savage) - 
Adobe .pdf download (2.8MB)
#86038 2 Speed Transmission (Nitro 3) Download the instructions
below by right-clicking the links below and choosing "Save As"
from the menu. After saving the files, see the instructions above for
how to print them to a sheet of paper.
Page
1
Page
2
Page
3
Page
4
Gear Chart
NEW - for use with any of the threaded
pinion gears (#76977-#72983)
Radio Equpment Information
Warranty
Sheet (JPG File) - 262 KB
This is the instruction sheet that comes with each of our RTR (Ready
To Run) kits that explains the radio equipment warranty and return information.
#A889 Slide Carb Linkage Set
Instruction
Sheet (JPG File) - 270 KB
Use this sheet to assemble the throttle linkage for your slide carb-equipped
Nitro car. These instructions are for our #!889 Slide Carb Throttle
Linkage Set, but you can use these instructions for any car with a slide
carb.
HPI Spring Rate Chart
Spring Rate
Chart (Jpeg File) - 372 KB
Color coded for easy identification, this spring rate chart will help
you select the right springs for fine-tuning your HPI car! Exclusively
for HPI springs, with tuning suggestions for Nitro and electric sedans
and Mini cars. The spring rates were determined with the springs compressed
15mm each.
#A912 Nitro MT/Super Nitro Rally 2 Speed
Page
One - pilot shaft, engine clutchbell and gear shaft assembly
Page Two
- one-way bearing, brake disc and engine installation
Page Three
- belt attachment and adjustment instructions
Page Four
- gearing and parts list
#A910 Nitro 2 Speed Set
Page
One - pilot shaft, engine clutchbell and gear shaft assembly
Page Two - one-way
bearing, brake disc and engine installation
Page Three -
belt attachment and adjustment instructions
Page Four - gearing
and parts list
#A882 Heavy Duty First Gear Adapter for Nitro 2 Speed and Gearing
Chart including new Nitro 2 speed clutchbells -
JPG image
#A905 39T Ball Diff Set for Nitro RS4, RTR Nitro RS4, Nitro
RS4 Racer, Nitro RS4 2
JPG image
#A885 Nitro Racing Clutch for all Nitro RS4 kits
JPG image
#72230 Nitro MT Slipper Clutch
Instruction Sheet
(JPG File) - 216 KB
Use this sheet to assemble the Nitro MT Slipper Clutch.
Nitro Star Engines .15 and .18 Size Engines
.21 and Larger Engines
Gas Engines
#1617 Nitro Star 18SS
Nitro Star 18SS instruction manual
#1401 Nitro Star 21BB
Nitro Star 21BB instruction
manual
#1301 Nitro Star 12R XS with normal
crankshaft (#1324 SG shaft is available)
Nitro
Star 12R XS Engine Tuning Sheet
Nitro
Star 12R XS Exploded View and Parts List
#1626 and #1627 Nitro Star 12R SS
Nitro
Star 12R SS Engine Tuning Sheet
Nitro
Star 12R SS Exploded View and Parts List
#1623 Nitro Star 12R SC
Nitro
Star 12R SC Engine Tuning Sheet
Nitro
Star 12R SC Exploded View and Parts List
#1900 Nitro Star Pro 12R RC
Nitro
Star Pro 12R RC Nitro Engines Cautions Sheet
Nitro
Star Pro 12R RC Engine Tuning Sheet
Nitro
Star Pro 12R RC Exploded View, Spec List and Parts List
#1905 Nitro Star Pro 12R SC
Nitro
Star Pro 12R SC Nitro Engine Cautions Sheet
Nitro
Star Pro 12R SC Engine Tuning Sheet
Nitro
Star Pro 12R SC Exploded View, Spec List and Parts List
#1600 & #1601 Nitro Star 15SS
Nitro
Star 15SS Engine Tuning Sheet
Nitro
Star 15SS Engine Exploded View and Parts List
#1605 & #1606 Nitro Star 15 (ABC)
Nitro
Star 15 Engine Tuning Sheet
Nitro
Star 15 Engine Exploded View and Parts List
#1610 Nitro Star 15SC
Nitro
Star 15SC Engine Tuning Sheet
Nitro
Star 15SC Engine Exploded View and Parts List
#1615 Nitro Star 15FE
Nitro
Star 15FE Engine Tuning Sheet
Nitro
Star 15FE Engine Exploded View and Parts List
Make your 15FE
into an ABC engine
#1801 Nitro Star Pro 21R SC
Nitro Star Pro 21R SC Tuning
Sheet
Nitro Star Pro
21R SC Exploded View, Spec List and Parts List
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