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Old November 9th 2011, 04:59
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judgie judgie is offline
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Join Date: Mar 2003
Location: northants uk
Posts: 355
not done much testing with the 17 inch wheels but the few runs i have done i can say this, the turn in is much sharper and the brakeing seems to be better. i went from a 580mm tyre to a 620mm tyre. i was expecting to have problems with turn in as i have fitted a zf lsd as well but it was very good once i changed my driving style to suit.
tyre wise i was running 240/580/15 on 9 inch wide rims on the rear and 200/580/15 on 8 inch rims at the front with softish rally slicks. i'm now running 7.5x17 with 200/620/17 track wets which again are very soft. i have more grip and it feels very stable upto 80mph which is about as fast as i can go at prescott hill climb.
one thing i did notice was a feeling from the front that the tca to anti roll bar joint was moving, i could feel a knock when hard braking and then movment till it loaded up, this was more when braking into the corner. think i'm going to try the compresion stut to tune this out.
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