jfh75-911S

Does anyone know if 7x15 wheels with 215 R60 BFG radials will fit on the front of my 75 911S without rubbing. I have that tire on the front now but I don't know what size wheel it is since they were on the car when I bought it.

Jack

Steve Weiner-Rennsport Systems

Hi Jack:

7x15's will work, but those 215's are pretty big and that will necessitate a taller ride height than is optimal for good handling.

jfh75-911S

Thanks Steve. What would you recommend for ride height as a compromise for a street car?

Steve Weiner-Rennsport Systems

Jack:

Ride heights depend on many factors: wheel widths, tire diameters, camber settings, and whether the front fender lips have been rolled.

I need to know precisely what wheels you have, the exact size of those tires, and whether your fender lips are rolled or not to offer a recommendation.

Dan Cobb

...not to mention whether or not you have a front spoiler that you don't want to destroy.
+++

jfh75-911S

Steve,
The wheels are stock 7 X 15 cookie cutters and the tires are 215 R60 15
BFG TA radials. The car is a stock 75 911S with standard (not rolled) fenders.
Its a street car only so I don't need to worry too much about high speed handling (although I do sneak in a 90 mph run every once in a while). I'd just like a starting point ride height because I'm also in the process of installing poly-bronze bushings on the control arms and changing over to turbo tie-rods and have the whole thing loose now.
Thanks.
Jack

Steve Weiner-Rennsport Systems

Jack:

Given those 60-series tall front tires and the need to maintain a 1 degree nose-down rake in these cars, I'd set the front at 26" and the rear at 25.5". That will get you close.

I would strongly suggest that you roll those front fender lips due to those big tires and the use of 7" wheels. Its only a matter of time before the tires will grab the fender lips going in and out of a driveway and bend it.

jfh75-911S

Thanks again Steve. Are those measurements at the front edge of the fenders where they meet the bumper spacers? (I promise that's the last question on this topic.)
Jack

Steve Weiner-Rennsport Systems

Jack:

Those measurements are from the ground to the top edge of the fender opening as measured through the centerline of the wheel.

DGaunt

Hi Steve,

How do those trim height specs you gave compare with Euro trim height?

TIA

Steve Weiner-Rennsport Systems

Dave:

Those specs are higher due to the large diameter tires, the 7x16 wheels, and lack of rolled fenders. Even then, he might need additional negative camber.

There are a LOT of different factors at work here.

Chris Doherty

I run 225/50/15 and 225/60/15 on 7x15 FUCHS and 8x15 Cookie Cutter wheels with no problem. Since the front is east to lower and raise I can adjust if i really need to. My car is lowered and dont have a problem, but with it lowered and a custom front spoiler i have watch going out of the driveway.

nullH20

HMM... I didn't think 8x15 Cookie Cutters existed? Did you mean 7x15 w/ 8x15 Fuchs?

Alan Herod

I believe Cookie Cutters came in 15X6 and 15X7. The standard tire that came for the rear of my 911 with Cookies was the 215/60. My 15X7 Fuchs fit on the front of my SC with 225/50 15s mounted.

Chris Doherty

I better go home and measure and see....I thought they were 15x8.
I will check..BUT what ever they are they still fit really nice...
the wheels came from a 944.
Chris