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Tyre Size for 1982 Turbo

ponslowcole

New member
Hi. I am just finishing restoring a 1982 Turbo which back in the eighties had a few modifications carried out by JMG Porsche including a fuel enrichment system, boost controller and big turbos. I want to put these 15" (8J and 7J) BBS wheels on but would like some advice on tyre sizes.
D701689C60554E27A0869B8977616E15.jpg

 
You can get new Porsche approved Pirelli P7s in 205 50 15 front and 225 50 15 rears.
My old Dage Sport DS935 had 15” wheels originally, and that had P7 205 50s on 7” rims at the front, but 285 45s on 10” rims at the rear.
 
I guess you are limited on size with the 8 inch rears you want to use. On my 930 with the same width size I have 245/45 on 16 inch rims. 205 seem popular at the front.
 

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