4003 is a compound that was specifically developed for lighter cars (Formula 3, Formula Ford, Formula VW, Formula Renault, Formula Campus) and occasionally for Rally use.
The main characteristics of 4003 are:
- Average friction coefficient 0.46 over working temperature range of 200°-450°C
- Very short bedding time
- Excellent bite
- Low drag & Excellent release
- Offers control to avoid wheel lock when downforce reduces
Dynamometer simulation of Touring Car front axle. DS2500 shown for comparison only, as would never be used in this application