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Track Coilovers - JRZ RS1 or KW Clubsport Coilover Kit
Looking at upgrading the last piece of my suspension on my Cayman R. I was wondering if anyone has a recommendation on a great performing track coilover and all around adjustability. I have been considering either the JRZ RS1 or the KW Clubsport, but I am open to other recommendations. Here are some particulars on my set-up and requirements. Thanks guys!!
• 2012 Cayman R • Tarett Drop Links - Front/Rear • Tarett Front/Rear Swaybars • GT3 Control Arms • 90% Track Use / 10% Street Use |
Check out MCS Suspension. I hate KW. I have done nothing over 20 years but remove it from customer cars.
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Originally Posted by Viperbob1
(Post 14673576)
Check out MCS Suspension. I hate KW. I have done nothing over 20 years but remove it from customer cars.
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JRZ, no KW
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I have the KW Clubsport, which came with the roller for my track car. They aren't bad, they just aren't aimed for the dedicated track market. Of all the KWs they are probably the only ones that are OK for any real track use. Certainly wouldn't bother with V2 or V3.. The springs for the Cayman configuration are 480#/700# f/r and KW advises that you can go up to 100# heavier and still have a matched damper with room to adjust. I did that and again, it's OK, certainly much better than with the default specs. Pro coaches have driven the car, in some cases to help me dial in the suspension rebound, and didn't note any particular problems.
KW is a responsive company so getting the shocks serviced and having support is a plus. If the car is dual purpose this might be an OK route to go (although the new Olin's may be better). If you are focused on track applications then I'd go with JRZs, such as the Spec Cayman parts. |
Originally Posted by Viperbob1
(Post 14673576)
Check out MCS Suspension. I hate KW. I have done nothing over 20 years but remove it from customer cars.
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Thanks guys...I think for what I have in mind/budget, I am going to go with the JRZs.
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Ok...now for a follow-up question. What spring rates should go with on the JRZs?
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Be sure to check out Ohlins as well. I was just told today that their "one way" adjustable really adjust both rebound and compression. Can't select springs though like JRZs. But similar or less $$$ and heard good things otherwise.
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Spec Cayman is 800# rear 700# front. You could even go with the JRZ spec package(single adjustable). If you street it at all that’s probably as high as you want to go. Track setups seem to often be in the 1100-1200 range in the back and 800-1000 in the front. Ocationally higher. As said the new Olin’s will be great, but maybe someone here with more knowledge can speak to whether they are set up for serious track use. My understanding is that they are more a better version of the KW clubsport. |
Well, ended up biting the bullet and going with a JRZ Pro RS set-up. Probably will not get to the suspension set-up till April, but I will keep you all posted. Thanks again for the help!!!!
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Jrz Pro RS 1 vs Ohlin R&T
https://cimg1.ibsrv.net/gimg/rennlis...0d47d924d.jpeg
I have Ohlins R&T's with 400 lbs/in f and 458 lbs/in r, recently upgraded to Tarett Cup LCA's which changed my whole setup in a very positive way, making turnin, trail braking, slalom course very accurate, due to the solid thrust puck, the large monoball at the outboard end and the sealed monoball on the inside. If you alread have GT3 control arms, you could upgrade these with the Tarett thrust puck and the inside monoball bearing to create a very responsive and stable control arm. Adding the Cup LCA's really improved the response rate of the shock, to a point where I have backed off the compression/rebound to 8-10 for around town and 5-7 clicks from full stiff for the track. I also have Tarett GT adjustable swaybars f and r along with 9 inch f and10 in rear monoblock forged light weight wheels running RE71R's 255/35/18 f and 275/35 r. This setup seems to be very competitive and user friendly for street driving. I would have to think about going over 500 lbs/in spring rate for the street, no matter how you valve your shocks, they will beat you up on back country chip seal roads and freeway expansion joints. I checked into MCS dual valve, and that is a real issue for drivability. Now, I can get away with running slightly less air pressure around town on my street wheels and tires. 90% daily driver. |
If considering top shelf coilovers, I would highly suggest looking at Penskes. On the track I went from Ohlins to Penskes, and there was a clear difference. Most noticeable aside from times was braking when there was uneven surfaces. The Ohlins wouldn’t hold the nose down, while the Penskes would. Also consider tire types, and make sure to match to spring rates. |
Thanks for the input guys.....ended up going with a set of JRZ 2-Ways with remote canisters. Love them!!
https://cimg4.ibsrv.net/gimg/rennlis...a975cb5678.jpg https://cimg7.ibsrv.net/gimg/rennlis...872ae42f56.jpg https://cimg1.ibsrv.net/gimg/rennlis...54cc6db0fa.jpg |
Originally Posted by josserman
(Post 15445764)
If considering top shelf coilovers, I would highly suggest looking at Penskes. On the track I went from Ohlins to Penskes, and there was a clear difference. Most noticeable aside from times was braking when there was uneven surfaces. The Ohlins wouldn’t hold the nose down, while the Penskes would. Also consider tire types, and make sure to match to spring rates. |
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