Quote:
Originally Posted by joelster
I noticed a big difference in tire pressures on the 660's. The sweet spot for me is 30lbs. I ran them for 2 events at 31-32lbs. On the 3rd event I had a decent lead so I tried lowering them. OMG what a difference. Took them to 30 and the front end was noticeably better. Lowered my time by 1.1 seconds. Went to 4th event and ran them at 30 for the whole event and set top pax. I run 19x11, 19x11.5, and 315/30/19 square. Car is roughly 3650lbs.
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Thanks for the data point! I started at 32 cold last time and let them drift up to about 37, and it definitely did not help. I'm going to start at 30 cold tomorrow and hold them there.