Hi,

This is my first season running my 2010 JCW in the Chicago and Tri-State region Solo Autox groups.

I am running the car completely stock (including the crappy dunlop runflats that came with the car) and have noticed that even with all traction controls off (the only thing running that cannot be disabled is the EDLC), the car's ECU will limit the power that goes down to the wheels depending on how cranked the steering is and how far the accelerator pedal is pressed.

As an example, a tight left hander comes up, I do my braking to enter the turn and pick my line. If I attempt to mash the throttle while exiting with the steering even at a half turn, nothing happens, the car just sits as if I am not doing anything. When the steering starts to straighten out a bit then i get power and can light up the tires almost instantly (the tire slipping I attribute to the less than super sticky runflats).

Now if I do the same turn, but feather the throttle so as to 'trick' the ecu, i can at least continue some forward momentum out of the turn.

I am still learning the car obviously, but was wondering if anyone autocrossing their JCW has experienced this and what if any suggestions you can offer (besides a tune) to get around this? It seems odd that with all traction control turned off, the ecu still interrupts power delivery. If I want to light up the inside tire in a tight turn, isn't that my choice? It sucks when the computer thinks it knows best, but I feel like I am loosing precious tenths with every tight turn out there.

Thanks for reading and offering any input that may help!