|
As you might know, my zed has probably done more track duty than any other z4 during 2020. During the last three years I have probably done more than 50 track visits all over China, and taken home around 20 time attack trophies. I have never had any problems related to ABS. I suspect it wont show up on the dyno either. If it happens mid-corner it might be because the brakes are working to reduce slip. Even if you drive on track with DSC=off, the rear brakes will still try to limit the slip, acting as an LSD. You can try and see if you can code out this functionality first and drive with DSC=off next time to test. If that solves the problem then you know what to do. Install an LSD haha.
I did replace the parking EMF module on my car long time ago because I had random problems with the parking brake. Its a bit expensive, and I wouldnt know if it solves your problem.
You said you installed a larger radiator. FYI, the csf radiator is not a larger radiator, and your water temps and DCT temps are definitely getting past 110C on track if its warm outside. Also you dont need cone-intakes fyi. Put the stock intake back in.
I spent more than a year (in 2018-19) track prepping my Z4, going through several cooling setup revisions, multiple sets of turbos, suspension setups and not to forget different attempts to solve the oil starvation issue (never succeeded). If you are concerned about loosing out on a few track days money, the best advice I can give you is to buy an M2C or cayman and use those cars for track duty instead. Use the Z4 for top down driving on the road instead, that's where the Z4 beats those cars.
|