Originally Posted by Tom-TPC Racing

Every car owner has their personal preference on what dampers to use and advocate a choiced source/shop based on their personal experience. All in good intention. My vote goes to electronic suspension, DSC Sport controller / Tractive DDA damper in particular. My 997 GT3 runs this package. Has been for 5 trouble-free years. On track it runs Cup car lap times, on street it handles bumps better than a new Honda Civic. Quite amazing actually. Its so versatile that I only use the Sport mode. With DSC I set the Sport mode to have a Damping Range of 10%-100% of the dampers. DSC is an active system that's load-dependent, with the primary load being G-force. Once the Damping Range is assigned, when I drive to work or to track the G-force on public roads is pretty low(usually 0g to 0.5g), this accesses the softer end of the Damping Range. When I want to take corners aggressively or need to brake quickly the damping force immediately increases to handle the load. The G-force data rate is 500x per second and the Tractive dampers' reaction time to the DSC commands is 166x per second. Obviously on track with the G-force well exceeding 1.0g DSC accesses the stiffer end of the damping range. Cup car stiff, only when needed. There are many threads on how great DSC is and attested by so many users, even on OEM PASM dampers. Enter the Tractive dampers, an ultra high quality damper designed and built to meet OE motorsport criteria using Tractive's patented DDA electronic valve that is the fastest reacting electronic Spool Valve in the world metering fluid flow to a traditional motorsport shim stack to produce infinitely shaped damping curves in real time to the driving situation. By the way, Tractive isn't a household name because Tractive is a relatively young company. A young and fast growing company with latest awarded contract by Dallara and RUF. For a dual-purpose car the only limitation is the spring rate selection because unlike the electronics, we can't adjust the spring rate onces the springs are installed on the damper. But even so, with 390/720 or 560/840 or in my case 670/1000 in-lbs springs, the ride is pleasant, made possible by the advanced electronics and DDA Spool Valve technology. Lastly, it takes more than the dampers and springs to make for a positive user experience. In that, the rest of the car's setup is critical. Respectfully speaking some users are unable to identify what makes a car not feel right or to their expectation. So in my position, I work actively with the end users to identify what needs to be changed based on feedback be it a sway bar setting or toe. As a joke, I not only sell Active suspension systems, I have to be Active in the setup support to ensure the end users have a positive experience even if I have to look outside of the parts that I provided. Having all the racing setup notes available for 996/997/991 from the pro racing side of the TPC definitely helps me do my job in achieving positive results for the end user swiftly. For what's worth, I am more than a passionate GT3 owner and driver. I manage a race car shop, do parts and setup development, test drive a lot of cars with different suspension on them for the purpose of evaluation and identify attributes so that I can continuously create better products. I have been at the job for 24 years and 2 months. Anyone who has bought a suspension package from me can tell you that I supply the setup specs from ride height, camber, toe to bar settings. And provide the after-sale setup support based on driver feedback. It takes a lot to make for a positive experience and often requires pulling every resources within the company.

That's my shameless spiel. Thank you for reading. We welcome inquiries on electronic suspension packages. I'll be working the SEMA show next week if any one wants a face to face.

Tom
info@tpcracing.com

Here's a youtube video from the Summer-
https://youtu.be/shTji-oViuM

Originally Posted by leongpengkheong

Hello Tom
Thank you - very impressive credentials indeed!
I am in Malaysia a long way from you so am not sure how to proceed. In the next few weeks I will see if the Ohlins can be tweaked to improve. Reading the Tractive it sure sounds like what I should have installed!
Will keep posted. Thanks again for your information!
Cheers
Kheong

Originally Posted by flsupraguy

Great deal for someone for Ohlin TTX https://www.ebay.com/itm/Porsche-997...4-ee13b594a150

Originally Posted by Spyerx

add in a rebuild and revalive and lots of parts to use them.... also i believe the rear connection to the upright may be different on the cup. And you’d need to check shaft length for droop