991.2 GT3 Suspension “Upgrade” Opinions (BBi StreetCup?)
03-30-2021, 09:04 PM
#16
Racer
Went with E-motion springs (stiffer close to .2 RS spec), spring perches, and Tarett control arms/spherical bushings including the RWS on my .1 RS. Had the BBi spring perches (designed to reduce coil bind), but rattled too much so switched to the E-motion ones which were a lot better. Definitely improved front steering feel and you know exactly what the rear is doing. Also if keeping the stock dampers, recommend a re-calibration of the damping settings of PASM (achieved through the DSC controller)...those settings/damper files can make a pretty large difference in the way the suspension behaves and how the car feels. Very well behaved on the street with the right DSC damper file (reminds me need to get a softer street only setting in regular damping mode from Tom Chan!).
03-31-2021, 08:40 AM
#17
I put the .2 RS springs in my .1 GT3, set the stiffness in normal mode to 60-70% dynamically controlled and in Sport mode 80% front and 100% rear with th DSC controller. The car is now razor sharp and neither bouncy nor bone hard.
The following users liked this post:
Tom@TPC Racing (04-01-2021)
04-01-2021, 09:19 AM
#18
Premium Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
if keeping the stock dampers, recommend a re-calibration of the damping settings of PASM (achieved through the DSC controller)...those settings/damper files can make a pretty large difference in the way the suspension behaves and how the car feels. Very well behaved on the street with the right DSC damper file (reminds me need to get a softer street only setting in regular damping mode from Tom Chan!).
__________________
PCA National Instructor
TPC Racing stats:
2023 Porsche Sprint Challenge 992 Cup Am Champion
2023 Porsche Sprint Challenge GT4 Pro-Am Team Champion
2022 Porsche Sprint Challenge 992 Cup & 991 Cup Champion
2020 IMSA GT3 Cup Challenge 2nd Championship
2018 IMSA GT3 Cup Challenge 2nd Championship
2016 IMSA GT3 Cup Challenge Champion
2013 IMSA GT3 Cup Challenge Champion
2006 Rolex-24 @ Daytona GT Champion
2004 Grand-Am SGS Class Champion
PCA National Instructor
TPC Racing stats:
2023 Porsche Sprint Challenge 992 Cup Am Champion
2023 Porsche Sprint Challenge GT4 Pro-Am Team Champion
2022 Porsche Sprint Challenge 992 Cup & 991 Cup Champion
2020 IMSA GT3 Cup Challenge 2nd Championship
2018 IMSA GT3 Cup Challenge 2nd Championship
2016 IMSA GT3 Cup Challenge Champion
2013 IMSA GT3 Cup Challenge Champion
2006 Rolex-24 @ Daytona GT Champion
2004 Grand-Am SGS Class Champion
The following users liked this post:
FogCitySF (04-01-2021)
04-01-2021, 09:20 AM
#19
Premium Sponsor
Rennlist
Site Sponsor
Rennlist
Site Sponsor
04-01-2021, 12:17 PM
#20
Racer
delete
Last edited by FogCitySF; 04-01-2021 at 12:19 PM.
04-01-2021, 12:19 PM
#21
Racer