Experiment - GT4 Track Setup Wiki:
#211
Basic Sponsor
Rennlist
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I might just take you up on that John, just going to be a while until i'm out of recovery mode from the initial car purchase, apartment, marriage, and honeymoon...within three weeks lol
__________________
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
Porsche Performance Specialist
John@Fabspeed.com
215-618-9796
Fabspeed Motorsport USA
155 Commerce Drive Fort Washington, PA 19034
www.Fabspeed.com
#213
Three Wheelin'
In the stock system, would front caster definitely be out of wack at -2.5 front camber? That's about all I need to go for my use, so wondering if additional parts are necessary at this level. The Wiki makes it sound like the answer is yes.
#214
I have -2.6 on the front with 20 x 9 ET55 wheels with OEM tires and have as yet to encounter rubbing on the tracks I frequent while running in advanced/instructor groups.
#215
Three Wheelin'
I guess only issue then for me is which shims to buy!
Thanks.
#216
Drifting
In addition to what ExMB said, it will probably also depend on how much camber your car can achieve stock. I'm running -2.5 camber in the front, and centering the wheel in the well required 8.8 caster, down from the 9.5 I had when I was only running -1.5 camber. I personally would have been concerned about rubbing issues stepping up to -2.5 camber without the ability to dial back the caster (I'm on stock wheels as well), but I can't say for certain that it would have been a problem.
#217
Addict
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Rennlist Member
Could some of that be due to the better gearing in the 987? I thought the advantages of the X51 would be closer to redline. In any case, sounds like a huge improvement!
#218
#219
Drifting
#220
To follow what others have noted... I am running -2.5 camber in front by using only the Motorsport shims (and not lowering). Also using stock wheels. No rubbing found after events at VIR or WGI.
#221
-2.5 is probably at the limit of where you can go without the caster pucks. It is going to be a bit car and track specific. If I remember correctly, I rubbed just a tiny bit at the front of the wheel well at a very high compression track (TWS) while I was fine at the others.
My guess is that with oem wheels most would be okay at -2.5. It is also a relatively easy change and you can go without it and add the caster pucks if you do rub.
My guess is that with oem wheels most would be okay at -2.5. It is also a relatively easy change and you can go without it and add the caster pucks if you do rub.
#222
Agreed. I don't think I could/would go further without additional modifications. Also not sure if more aggressive offsets would work. It is a little tight. But the compromise between street and track seems to work for my purposes at the moment.
#223
Thank you so much for compiling this wiki! Extremely valuable. Went with the moderate suspension setup and will progress as I get more seat time.
Camber:-2.5F, -2.0R (Shims + Tarett rear toe links w/ lockout)
Toe: .03/.03 (F). .14/.14(R)
Front Caster: 9.78(L). 10.35(R) Will listen for rubbing. Maybe should have done the thrust arm bushings at the time too.
1/2" lower. Factory rake maintained.
CB w/ full ext. tank. 686(LF). 689(RF). 853(RF). 867(RR). CW: 49.8% and 50.1%
First oil change (1300 miles). Millers Nano CFS 5W40, went with Intersport's recommendation.
Can't wait for Summit in a few weeks to enjoy her!
Camber:-2.5F, -2.0R (Shims + Tarett rear toe links w/ lockout)
Toe: .03/.03 (F). .14/.14(R)
Front Caster: 9.78(L). 10.35(R) Will listen for rubbing. Maybe should have done the thrust arm bushings at the time too.
1/2" lower. Factory rake maintained.
CB w/ full ext. tank. 686(LF). 689(RF). 853(RF). 867(RR). CW: 49.8% and 50.1%
First oil change (1300 miles). Millers Nano CFS 5W40, went with Intersport's recommendation.
Can't wait for Summit in a few weeks to enjoy her!
#224
For the main page under oil changes - can we please add the link to the tools we need and torque specs?
This way we can create a comprehensive "go to" page for track and track maintenance.
I can't wait to see how this car feels on track. The steering is pretty freaking awesome. However, I have found that I cannot heel-toe very well in this car. The brake bit is high and the throttle is much lower than some of my other track cars. Are others experiencing this same feeling? I will say that when I drove a 981 Cayman S I was able to heel-toe with ease - I'm talking EASE. It was a gem to drive on street.
This way we can create a comprehensive "go to" page for track and track maintenance.
I can't wait to see how this car feels on track. The steering is pretty freaking awesome. However, I have found that I cannot heel-toe very well in this car. The brake bit is high and the throttle is much lower than some of my other track cars. Are others experiencing this same feeling? I will say that when I drove a 981 Cayman S I was able to heel-toe with ease - I'm talking EASE. It was a gem to drive on street.
#225