Even when you press the PSM (Stability control) off, it comes back on once ABS is activated. THere are different limits depending on sport mode or not, but it still cannot be completely disabled.

Is there any way to completely disable it for track use? I have found that the only way to be fast out of corners is to left foot brake and keep the turbo spooled. Problem with this is that is seems to activate ABS sometimes and then the PSM kicks in and the engine bogs.

On other cars, I have been able to completely disable PSM with an ECU flash. I guess I could also disconnent all 4 wheel speed sensors, but then ABS won't work. I'd like to keep ABS and just disable the stability control

 

I don't forsee the car activating ABS under track conditions, especially if it's a faster course. I could be way off though.

Another option might be to find a fried PSM module. I ran one on track days, because it sent my suspension into limp mode, making it very stiff. If the ABS is operated through the primary computer, then that will accomplish what you're asking.

 

It comes on almost everytime I left foot brake. IF you don't left foot brake this car, the lag is horrible on the track.

 

Disclaimer: not trying to get into an ego battle, just providing you my thoughts.

Are you on stock tires, or not getting your tires up to temp?

I've tracked my 997 for two years, so I'm not speaking without experience. I do heal/toe though, but I don't see how the car would know the difference.

If you're locking up your brakes and relying on ABS to prevent it, you're overdriving the car. lift earlier and brake longer. It will let the car settle and you'll carry much more speed through the turn, and you'll have plenty of time to cover the throttle to keep the turbos spooled. Talk to any instructor, they'll tell you; you'll pick up more time letting the car settle than trying to squeeze out every inch of speed through the straights, and you'll be more consistent too.

 

I am not locking up the brakes, I am left foot braking to keep the boost up.

I am running the car on Hoosier A6s, KWV3s, cup control arms, dog bones and toe links. I race a 700hp Corvette in Time attack and have set the street car lap record on both tracks I race on. In my region, I have set lap times faster than any open wheel car in my Vette.

I am not out here to granny it around the track. I think the car could be really fast (although likely not on the KWV3s), if there wasn't any lag. I'm putting in a LWFW and new clutch which may help, but likely not enough. I was thinking of getting a Switzer standalone so I could run an anti-lag tune at the track. This kills turbos since it creates so much heat, but I am fine with replacing turbos on a yearly basis for a track car.

I read on a cayman forum that the PSM could be disable by disconnecting two wires at the brake pedal. I have no clue if that will work on a 997.

 

I don't think it's fair to call consistent driving "grannying around". I simply got the impression you were committed to keeping the ABS and deduced you were locking up your brakes regularly, and thereby overdriving.

If you're not locking the brakes up, then you don't need ABS, so disconnect the sensors, and you'll accomplish what you're trying for.

 

That may be what is required, although I would like to retain ABS if possible.

I have found that when ABS is disabled is many cars, the balance is not that great compared to cars that are designed not to have ABS. And one of the tracks I run on has alot of cement walls that leave no room for error. So when you are driving in a competitive event at 100%, that can be a bit disheartening.