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Ben Lipman Goo Roo SA Soarer TT manual, plus TT track car, plus a spare shell
Posts: 3373 Reg: 04-2006
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Friday, March 29, 2013 - 04:42 pm, by: Ben Lipman(Ben12a)
OK, so using 15x6.5 +50 as the standard rim all round I came up with the following:
Rear 17x10 +40 will extend 54mm wider than stock. Front 17x9 +38 will extend 44mm wider than stock, and 59mm wider with the 15mm spacers.
The factory track widths are 1591mm front and 1581mm rear. My books all state a wider front track is desirable for handling. I believe track is measured from the centre of each tyre, not the outside edge, however with the spacers I should be bringing the track widths closer to the 10mm wider at the front as in the original specs. Not that much of my car is to original specs...