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Everything posted by dave murray
Again, I agree completely with Mike. (We must be similar drivers with similar driving preferences). I start Pilot Sport Cups with 26/27 front/rear...and have the same comments about how they feel and how they warm up. Do pressure test them hot after each session....warming afternoons may have you bleeding off more air. AND BE SURE to air them back up to street pressures for the ride home. You won't get track type heat in them driving home and too-low pressures on the street will risk sidewall failure (read: Catastrophic Failure) on a long ride home.
Mike, Craig, thanks again, sorry if my communication was not the best, a racer gave me the suggestion of full stiff or hard on front, 2 from full soft rear. After tinkering a little over the weekend, I can't imagine needing full stiff/hard on front, currently in 1st hole from full stiff. Rear is in 2nd hole from full soft. After aligned, and 1st track day, (end of march) I will have an idea how close I am to right. I also have 996tt, with X-73 suspension, this car is fantastic, but I have to admit it is heavy, but the X-73 transformed the car from severe understeer to a real hoot to drive. Bought the GT-3 because of desire to go back in time to my old cars but have all the 996 features I have come to enjoy in new generation cars. For sure the 996tt has made me lazy in my driving and I need to step it up a bit with the new car. Tire pressures? on michelin sport cups, on turbo I started at 29 front 31 rear, hot went to 35-36 hot, assume GT-3 I will start lower due to weight difference in the cars. Once again thanks! Dave
Mike and Craig, Thanks for your reply to my questions. I am set to get the car aligned in new couple weeks. I was given tip to set front bar full stiff, rear 2-3 from soft as a starting place, do you agree? Thanks Dave
Dave.... after two years of fiddling, I support Mike's recommendations completely. You say you will use the GT3 80% on the track. While that alignment will work on the street, it won't be the best for steering stability and tire wear. I can get 3+ alignments done for the price of one rear tire....so, I realign for track and back for the street. I run my car on major road trips too and difference is worth the time and trouble of realigning. BTW, I had a local machinist make some aluminum shims for the front lower arms in 3/8" stock. He patterned them after the factory shims....and, they work just fine.
I just bought at 2005 GT-3, and would like some advise for alignment and sway bar settings. I will use the car 80% track and 20% street, michelin sport cups, std sizes. Car is nervous in high speed sweepers and is headed for alignment as soon as I have feedback. As an instructor for Ozark Lakes Region, I have lots of seat time in 993-996 and 996tt and am looking to avoid brain damage of set up. Thanks Dave