Ice mode solution?

prandelia

Well, even with a proper pad combo (more front biased), AP Racing BBK (front) and good braking technique, proper tire sizes, and only 200TW tires, you simply cannot drive aggressively without wheels locking up on a stiff suspension/track oriented setup. I flat spotted a set of front tires again this weekend at NCM. The guys at Counterspace told me the car 100% needs to have less rear brake pad bias, via less aggressive pad, for track use. So that's what I've current done.

The system def. works better since the AP front kit install, but certain brake zones can exacerbate the issue.

The ABS is just outright dangerous for anybody that is a good driver and really wants to push this car. I make sure to give myself tons of room to the cars in front of me as a further precaution. Still waiting on another forum member to come through with their "black box" fix to allow OE wheels speed sensors and full dash electronics to work. For a street/DE car, it's just not feasible to delete the tach or speedo functions, and have to add a full second set of sensors. No reason this can't be fixed electronically.

Attached Images

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2018-991.2 GT3-6spd / 2016-981 GT4
2013-E92 M3 / 2014-Nismo 370Z
2015-FRS-GLTC race car

danegrey

This is just a thought, I am working with a sim instructor, he also helps me with my tracking. He is currently working with me to make sure I do not engage ABS in the sim. Now I start tracking in a month and I am going to work on that idea. Its been a bit of adjustment in sim racing, but I will find out.

Again, its just a thought, maybe a different approach...

my 2 cents...

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Lots of Changes
the Z needs to be driven and driven hard for the car lives for it

prandelia

That's good in theory, but until you actually pilot this car, and the ABS program at speed, you will learn long term you will never be perfect enough to stay within the programming limits of the car, if you get fast enough, or your setup is aggressive.

I've got like 6 track/race cars, and this is by far the worst ABS system I've ever used. I don't have a problem with the ABS, I have a problem with the limit programming it has that locks wheels up in certain situtations. That is something that no decent sports car I've ever driven does.

I make sure my tire diameters and brake compounds are appropriate for all my other cars to avoid ice mode and overly intrusive abs, but this lockup issue is totally unacceptable. Asking people to go to a track and drive fast, and tell them to "learn to brake around this situation" is not a solution. This is why so many cars end up crashed, and why even more probably avoid driving this car on track altogether.

__________________
2018-991.2 GT3-6spd / 2016-981 GT4
2013-E92 M3 / 2014-Nismo 370Z
2015-FRS-GLTC race car

danegrey

Just an FYI, I do track my Z, have about 20-25 events on it. Sounds as if you have done a lot more tracking in different cars over the years. That is great to hear. I still learning and playing on this stuff The other problem I have - no butt feel and it takes me time to understand what I am being told.

So anything you say, I will review and think on it. Thanks for the input.

So where to you track at, just wondering, maybe we can meet up at an event.

__________________
Lots of Changes
the Z needs to be driven and driven hard for the car lives for it

Spooler

It is amazing nobody has written new software for the stock ABS system. How did your new front brakes work for you?

Spooler

Forgot to ask. What pads are you using on the front and rear? My car has been in the shop since last year. It's going back together now.

prandelia

Originally ran CSG spec C2 front, CE1 rears with stock front brake setup.
Now with AP kit up front, running DS1.11 up front, and CSG Spec CE1 rears, so the front bias still remains as C2 and DS1.11 are virtually the same.

__________________
2018-991.2 GT3-6spd / 2016-981 GT4
2013-E92 M3 / 2014-Nismo 370Z
2015-FRS-GLTC race car