GTM Stage 2 Supercharger Preliminary Testing Results

Nixlimited

In thinking about this more, there must be a bit more to it than the stock traction control being "useless" with FI. All traction control systems share some of the same primary goals, such as stopping wheel spin to some degree based on some conditions being met (i.e. undesirable wheel spin). Both the stock traction control and the RaceLogic seek to prevent undesirable wheel spin. The differences must be in the sophistication of the sensing; the adjustability of the system (i.e. what constitutes undesirable wheel spin) and the method of reducing power once undesirable wheel spin has been detected. Regarding the first aspect, sensing, the stock system may actually be more sophisticated than the RaceLogic if it includes input for yaw angle, steering angle, lateral gs, etc, in addition to wheel speed sensors, like other high-end performance cars. My limited understanding of the RaceLogic system is that it just uses the ABS wheel speed sensors as an input. As to the second aspect, adjustability, it sounds like the RaceLogic is very adjustable whereas the stock system is on/off. Pint definitely goes to RaceLogic. Finally, as to the method of preventing wheel spin, it sounds like the RaceLogic system has a sophisticated system of cutting fuel. I am not sure how the stock system does it, it may pulse the brakes, it may cut fuel, it may do many different things and/or combinations of things. The export of all of this is that the stock traction control probably could be as good or better than the racelogic if it was tuneable, assuming they use similar methods of regaining traction.