Instructions
Option Parts Instruction Sheets (Electric)
Option Parts Instruction Sheets (Nitro)
Click here for changes to production kits, part replacement
policies and more!
Instruction Walk-Throughs
Excel Parts List for all HPI kits
This file is a parts list for every HPI product that is currently sold.
Download the newest version here
HTML version of the Kit Parts Cross Reference (to see the list in your browser)
Microsoft Excel file viewer (if you don't have Excel on your computer)
Kits
Nitro RS4 2 / RTR Nitro RS4 (full assembly instructions)
Electronics
TX-1 Radio (included with some HPI RTR kits)
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.
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
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 (PDF File) - 157 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
#A297 2 Speed Transmission Set for Pro/Sport/Rally
#A508 32T Ball Diff Set for RS4 Mini/Sport/Rally/Sport 2
#A905 39T Ball Diff Set for RS4 MT
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.
Option Parts (Nitro)
#87032 Reverse Module (Savage 21)
Just added! Exploded
view and parts listing
#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.
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 (PDF File) - 157 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 -
#A905 39T Ball Diff Set for Nitro RS4, RTR Nitro RS4, Nitro RS4 Racer, Nitro RS4 2
#A885 Nitro Racing Clutch for all Nitro RS4 kits
#72230 Nitro MT Slipper Clutch
Instruction Sheet (JPG File) - 216 KB
Use this sheet to assemble the Nitro MT Slipper Clutch.
Nitro Star Engines
#1626 and #1627 Nitro Star 12R SS
#1623 Nitro Star 12R SC
#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
#1605 & #1606 Nitro Star 15 (ABC)
#1610 Nitro Star 15SC
#1615 Nitro Star 15FE
#1908 Nitro Star Pro 21R SC
Nitro Star Pro 21R SC Exploded View, Spec List and Parts List
