Racepak: data recorder, onboard computer, data aquisition   

OBD-II - On-Board Diagnostic System   

Competition Data Systems - When you want Answers, not just data   

World Hot Rod Association (WHRA)   

Virtual Thunder: The Interactive Racing Experience   

Virtual Engine 2000 - Ultimate Race Engine Simulation Software   

Engine Dyno Simulation Program. Calculates Horsepower, Torque, RPM, 1/4-1/8 Mile ET & MPH, Labor Cost, and Parts Cost.

Thomas Enterprises - SIM Racing Products   

Free Drag Racing PC Game!   

Get your FREE download of the Match Race Madness drag racing PC game! It's old but a fun way to pass a few hours...

TAG Systems   

Stock Car Online Racing League   

Steve Smith Autosports Online Catalog   

Starting Page TSR Two-Stroke Racing Software   

SOFT-ENGINE dynamometers and engine simulation software product   

Simple Horsepower Calculator   

Simple Horsepower Calculator   

SIMOTTO aided engine design   

Rinda start page   

Reher-Morrison Engine Calculator   

Rapid Line Industries, Inc.   

Racing Systems Analysis - Motorsports Performance Software