Pics & Review of My Bilstein PSS10 Lowered Red Turbo by cannga

5 minute(s) of a 612 minute read

5-27-2013

No I do not know, but interesting that someone was complaining of same problem with Techart recently: PSS10 vs KW Variant 3...which is better ??? . It is quite possible that Techart uses stiffer springs and/or revalve the damper to increase bump/rebound damping forces, but they keep it a secret so no one really knows. However, I should mention that IIRC, DaBrat's car has multiple other suspension components that would make his car stiffer, independent of the Techart coilover.

What other supsension mods do you have in your car? 

As a last resort, if it bothers you that much, the springs in the Techart suspension could be easily and cheaply swapped out to Bilstein Damptronic springs, or Swift/Hypercoil springs, with both of these have known spring rates. I would start with same rate as the OEM Bilstein Damptronic 336 front/ 560 rear. Swift and Hypercoil are easy to buy, Bilstein springs I am not sure but my tuner Lucent Motors in Los Angeles was able to get them a while back.

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Pics & Review of My Bilstein PSS10 Lowered Red Turbo

There are two places you could get springs that fit Bilstein: Hypercoil and Swift Springs. The springs you want to look for is 70mm ID, 6 inches long front, 8 inches long rear. The process is very easy and cheap - labor should be around 300-400 per axle.

Swift Springs: http://www.swiftsprings.net/products...r-springs.html

Hyperco: http://www.hypercoils.com/PDF/70mm.pdf

Currently my car is set at 448 front/600 rear - versus Bilstein's 336/560. 

The front spring is Swift Spring part # Z70-152-080: Internal Diameter 70mm, free length 152mm=6 inches, spring rate 8 kgf/mm=448 lbs/inch.

The rear spring is Hypercoil part # 8P0600: Internal Diameter 70mm, free length 8 inches, spring rate 600 lbs/inch.

The springs are cheap and directly replaceable for the OEM Bilstein springs. If you are into more advanced level of suspension tuning, the springs are the place to play around and have fun with. It's an easy process and the change will be easily noticeable.

6-7-2013

BTW, anyone who is interested in a serious and excellent track setup (as opposed to the Bilstein Damptronic, which really is primarily a street/occasional track setup) should definitely visit VID's thread below and see what he uses, what he does, and the incredible amount of work, time, and $$$ that he goes through to get his suspension tuned.

Note the interaction between driver and setup man. This is why I keep emphasizing that track-oriented suspension systems like JRZ/Moton/Ohlins require very advanced driver and setup man, and unless you are at that level and spend a lot of time at the track, it's not a good idea to use them. 

This is because the setup man depends on input of the driver. You have to be able to tell him what you like and don't like about the car's behavior, understeer vs. oversteer, compliance, etc. It is then his job to correct and set the suspension the way you like. VID's description below is a perfect example of the desireable interaction (except for the part where they didn't listen ) .

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http://www.6speedonline.com/forums/997-turbo-gt2/240408-rain-shine-ls-re-11s-27.html

Yes, BRR has been fine tuning my set-up. JWE did the initial install and alignment number one. After testing for two days with them at SP, I took it back for some adjustments and to give them my feed back. Apparently my feedback to alignment number 1 wasn't well received and they did very little to correct it. It is very apparent from my videos alignment number 2 had tremendous under steer. I took it back for number three....when I picked the car up and I could immediately tell from its stance they did not listen to my feedback or analyze my videos. Yes, my times were quicker, but the car was very difficult to drive. Upon picking the car up from JWE after alignment number 3, I didn't even bother taking the car home. I drove it straight over to BRR at 5:30pm, told them my issues and showed them some in car videos. They too could tell just by the stance the car was not going to perform well. They have been fine tuning it, and managing it since then (alignment #4,5,6, & 7 this week). Every adjustment they have made has been realized, and as I have previously mentioned the car is just magical and almost like cheating.