Will running 235/40's w/ 285/30's ruin the viscous coupler?
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It takes more than THAT to toast a VC. Ask me how I know.......
As I understand it the front tire diameter should be slightly smaller than the rear to "pre-load" the VC so it is putting 5% of the power to the fronts in normal driving.
As I understand it the front tire diameter should be slightly smaller than the rear to "pre-load" the VC so it is putting 5% of the power to the fronts in normal driving.
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Originally Posted by ScottMellor
As I understand it the front tire diameter should be slightly smaller than the rear to "pre-load" the VC so it is putting 5% of the power to the fronts in normal driving.
i think it's the other way around. you want the rears slightly smaller so they are spinning just a little faster. 225X.40=94 ..... 285x.30=85.5 with aspect ratio(sidewall height) being a percent function of section width.
but with respect to this thread, i was curious about running 235's and 285's and the consensus is it is not a problem. The difference between 225 vs. 235 is negligible and others have done it without any issues. don't take my word for it though. i have not done it............
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I've run 295/30 with 225/40 on my C4S with no problems. I've run the same combo on my TT as well. I currently run 235/40 with 315/30 in 18's (which I believe Viperbob and CJ do as well) and 245/35 with 285/30 in 19's. Of course, my VC is toast. Unlike Scott, I have yet to fix mine.
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Originally Posted by EThec
i think it's the other way around. you want the rears slightly smaller so they are spinning just a little faster. 225X.40=94 ..... 285x.30=85.5 with aspect ratio(sidewall height) being a percent function of section width.
but with respect to this thread, i was curious about running 235's and 285's and the consensus is it is not a problem. The difference between 225 vs. 235 is negligible and others have done it without any issues. don't take my word for it though. i have not done it............![hiha](https://rennlist.com/forums/graemlins/roflmao.gif)
but with respect to this thread, i was curious about running 235's and 285's and the consensus is it is not a problem. The difference between 225 vs. 235 is negligible and others have done it without any issues. don't take my word for it though. i have not done it............
![hiha](https://rennlist.com/forums/graemlins/roflmao.gif)
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I used 245 front and 275 rear on my previous C4 and it run perfectly well. Understeer was completely cured, no sway bars or any other changes. Steering was a bit heavier, but it ran great and tramlined like a pig
Some say is too much but this is my experience.
I am now running 265 upfront, no understeer, and no issues with my VC. Oh! I don't have one
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I am now running 265 upfront, no understeer, and no issues with my VC. Oh! I don't have one
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Originally Posted by Vince 97' 993 TT
So does everyone experience tramlining in their rides? It sux, expecially under hard braking... Is there anything that can be done to correct this? ![burnout](https://rennlist.com/forums/graemlins/burnout.gif)
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Vince you can change the Toe settings and it will help, advise given by Viken some time back. I am not sure how much or which way sorry. If you run a search for tramlining you should be able to find something.