Boxster S -- PSM or no PSM for AutoX
10-26-2022, 11:22 AM
#16
For the first event and a half I ran by 997.1 with PSM on, hoping the ABD would help act like a LSD but I seemed much slower than normal when comparing pax times. In my previous car I was almost always top 10 out of 80-100 drivers for the past several seasons. I turned off PSM and instantly dropped 1.6 seconds on a 45 second course. The car felt more neutral to slight oversteer vs understeering everywhere.
Stock 997.1 only understeers slightly on corner exit, and as you assessed, neutral to slight oversteer in transitions. I went to Tarett GT3 front bar (26.8 mm) for this reason - though after mistakenly going with the oversized (28.6 mm) version for most of the last year. The GT3 front bar strikes the right balance for autocross, IMO.
11-19-2022, 09:34 PM
#17
Instructor
I noticed that RPM Rev-Matching feature is disabled if you have the PSM disabled. I wonder why?
Kenny Mitchell
nokones@kenmitchell.com
2015 Porsche Cayman GTS Manual Tranny, X73, PTV, without PASM, Custom Valved Shocks for Autocrossing
Kenny Mitchell
nokones@kenmitchell.com
2015 Porsche Cayman GTS Manual Tranny, X73, PTV, without PASM, Custom Valved Shocks for Autocrossing
06-19-2023, 11:35 PM
#18
Rennlist Member
Right now you are running on Flintstones and time to spring for Bridgestones ( or something else ). You have a beautiful car, a solid performance machine and I personally would not autocross anything on tires 8-9 years old --- definitely not take them on the track.
The change in tire technology, tread design and compounding , you are going to go so much faster you will question why you waited, imho.
The change in tire technology, tread design and compounding , you are going to go so much faster you will question why you waited, imho.
