Fikse ZFs - 17” Rear Wheels... 9.0 or 9.5 inches?
12-02-2018, 03:10 PM
#16
On the ones I've seen they usually use a 993 10ET65 w/ 21mm spacer for ET44, thes have a couple more mm backspace than even a 9ET55, The tire of course usually protrudes even further(a 275 more so than a 255). So yes a flattened oil line is wanted.
12-02-2018, 06:58 PM
#17
Thank you for the reply. I would run a 255 or 265, nothing bigger, and a street tire, not an R-compound.
I don’t want to flatten the oil line if I can avoid it. Just because the car did not come this way.
Is there any negative to flattening it? How much does it really need...?
12-03-2018, 12:03 PM
#18
Rennlist Member
Sorry for the hijack OP
I'm running 9.5s but only see a 5 mm spacer...
All of this rim size and spacer information is interesting.
My car came with huge (plump) tires, so I better check how close the tires are to the oil line...
Fronts are 8s rolling on 235/45s (no spacer)
Rears are 9.5s rolling on 275/40s (with a 5 mm spacer)
I'm sure everything is fine, but given the rim size and spacer discussion, does any one know which reproduction rims these are?
...when used w/ a 265/35 tire the 9.5 ET47 wheel has a backspace of 7.1"(180.4mm) though I have seen 10ET ET45 used w/ 275/35x18) wheel b/s is7.27"(184.7mm) this should be considered the max b/s that can be used on a 964, the 265 tire b/s is ~7.07"(181mm) a wider tire like a 275 would have a little more backspace
Hi Bill, running the 9.5 x 17 ET68 Cup rears with a 21mm spacer leaves a lot of clearance between the tyre and fender. I think I ended using a 28 or even 32mm rear spacer to get the standard 255/40 rear tyres to fill the fender well out nicely. See attached images of my old car running this set up.
As I recall the C2 and RS run “unflattened” oil feed/return pipes.
My car came with huge (plump) tires, so I better check how close the tires are to the oil line...
Fronts are 8s rolling on 235/45s (no spacer)
Rears are 9.5s rolling on 275/40s (with a 5 mm spacer)
I'm sure everything is fine, but given the rim size and spacer discussion, does any one know which reproduction rims these are?
