Rear track width problem!

[Alex]

If you are using the bug IRS trailing arms or even the early style aluminum arms your rims should fit under the fenders. The fenders might need some work though like folding the inner lip and pulling the fenders out slightly. I have seen many cars in German mags that had Porsche 944 Turbo rear brakes with 8.5 inch rims under stock fenders.

A 9X17 ET47 rim fits under the stock fender with a 27mm spacer. given a Track increase of 26mm on each side because of the Porsche brakes you would eliminate the spacer. Since you are using smaller rims with a bigger offset you should have space under the wing. This info comes from many German mags as well as from the CSP cataloge and website.
Sandeep is fitting 18x10 in the rear with bigger tires and he could get away with a 2 1/4 inch wider fender and he uses a 930 rear brake setup which increases the track by an additional 13mm so his total is 39mm per side.

One thing that might be done is to modify the fender though. fold the inner lip to pull out the fender slightly. How much extra fender width to you need? 1cm or 1/3 or an inch?

Alex