Quote:
Originally Posted by RKDinOKC
Will be interesting to see what you notice with the 17's at the autocross.
My BoxsterS was slower with heavier wheels, but I didn't care cause I really liked the look of the heavier wheels...
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I drove around for 50 miles or so. Mostly highway driving. After I got the mold release crap off of the tires I took a few on ramps at an slightly aggressive speed. They for sure have a lot more corning stick. I can stand on the brakes and the whoa felt faster than before. I just need to get them balanced properly and hit the autocross.
The old tires were M&S rated and a tread wear of 330, 205-50 fronts and 225-50 rear. The new tires are treadwear 220, summer only, 225-45 fronts, and 255-40 rear. The new 17s are very close to the stock overall diameter so the speedometer is dead accurate on finally. With the 15s I would scrape the skid plate leaving my driveway if I went west. I had to go east into the neighborhood to get out with no scrape. Now the ground clearance is much better. I hated running the tiny tires on the 15s but there were no other tires available.