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cloud9
Gary
Thanks for the feedback. I think I'll try the 275/40/18s. As AZGT also said it will help with the gearing by being closer to the stock diameter than the 35s. I have noticed that "loose" feeling you describe when running Hoosiers at lower pressures. Lap times were better but it felt "weird". After you get used to it, it's not a big deal.RoadRacer78 said:There is obviously a point where the sidewalls will get too tall and “flop” over when side loaded but what you are talking about is nowhere near that.
I am a big fan of taller sidewalls (if designed correctly) for roadracing. In the early 2000’s 16.5” rims (opposed to the normal 17” rims) became available to the non factory riders (me) and they were a huge leap in performance. Easily 1-1.5sec/lap. The overall diameter of the tire stayed the same (if not grew) so when you were on the edge of the tire it would spread out more and give a bigger contact patch. They also had the added benefit of conforming to and absorbing surface irregularities that would have a 17” tire chattering across the tops of the bumps. The only downside, and a very small and almost unnoticeable one was that the tire would move around on the rim a bit more and give a slight “loose” feeling. I like riding like that though because I think it gives me more feedback so it didn’t bother me in the least.
I think you should take a shot at the taller tires. In a car I can see them paying huge dividends across ripples, etc. In essence they are adding some “suspension” to the tire. You may find you want to use a touch more rebound damping with them though. Just a touch.
Nice wheels by the way.