[Bill Verburg]

Originally Posted by KTL

The 15x8 wheel with it's low offset can fit the front but it's really tight. Looks like it sticks out too much but people make it work. Good picture in this thread

http://forums.pelicanparts.com/porsche-autocross-track-racing/840193-what-size-tires-you-using-15s.html#post8375762

Here's another thread with discussion on the fronts. http://forums.pelicanparts.com/porsche-911-technical-forum/822066-15x8-fuch-wheels-up-front.html

The search function is your friend. Just have to be patient/diligent and try different terms. But that's easy to say. I was doing some searching a month or so ago about this same question for my own car (i'm considering 15 in. wheels for the '86 for track use) and I saw a thread with a bright green car that had closeup pics of the front, showing very clearly how tight the fitment is at the fenders. So tight that you'd think to yourself "c'mon dude, there's no way that tire doesn't rub!" I can't find that thread now......

More correctly there are people that claim to run 8x15.

Anyone that believes them is welcome to try it, it is not going to be an easy fit and there will certainly need to do some surgery on the lips. Tire choice will be critical as will suspension setup and settings

The most credible was Mike P. aka Analogmike. He owns a beautiful bright green '73 RS clone (base was a '73T)that he used to race a lot. Haven't seen the car in years because he has been racing his Cup car.
here's a pic



#s don't lie but peoples memory and understanding of what wheels they have is very often questionable

Here are some hard #s for Fuchs WF/S-Wheel front space, TF/S-tire front space(this varies a bit from tire to tire), TH- Tire height
7x15
ET 23.3
WF/S 75.13
TF/S w/ 205/50 ~79.2 easy fit SC/Carrera front any ride height
TH 23.1"

8x15
ET 10.6
WF/S 100.53
TF/S w/ 225/50 ~101.9 easy fit SC/Carrera rear any ride height
TH 23.9"

8x16(944)
ET 23.3
WF/S 87.83
TF/S w/ 205/50 ~79.2 tight fit SC/Carrera limited ride height. Lip mods are necessary most times, the lower the car the more likely
TH 24.1"

aftermarket
8x17
ET25
WF/S 89.3
TF/S w/ 235/45 ~92.5 Extremely tight. Major lip surgery mandatory. restricted ride height. This is at or near the max that I have been able to fit.
TH 24.4"

8x17
ET31
WF/S 83.3
TF/S w/ 245/40 ~91
.5 Extremely tight. Major lip surgery mandatory. restricted ride height. This is at or near the max that I have been able to fit.

Driven 97 has a special set of 9' on the front of his, I can't remember whether they are 15,16, 17 or 18 or the tire used, but assuming these are built w/ modern .5" flanges
9x??
ET35
WF/S 92 I don't know how they fit