8" Fuchs on narrow body 911?

exc911ence · exc911ence's Garage

Anyone run 15x8" Fuchs on the rear of thier 69-77 911? If so, what size tires are you running? Post pics if possible!

KTL · 01-28-2004, 11:05 AM

Check out this diagram of Fuchs wheels. Nice scale drawing showing the inner and outer edges of the wheels relative to each other.

The 15x8 is too wide. Reason it's too wide is the offset which will cause outboard fender clearance problems.

The 16x8 944 Turbo Fuchs (+23.3 mm o/s) will fit back there on a non-flared car. I think you'll need to roll the fender lips and run a 225/45 tire.

Marcesq did this on his 77. He could provide the better details.

m325ix · 01-28-2004, 11:06 AM

I got narrow body 82 SC and I am running 9x17 RUFs with no rubbing and no fender rolling

KTL · 01-28-2004, 11:09 AM

Quote:

Originally posted by m325ix
I got narrow body 82 SC and I am running 9x17 RUFs with no rubbing and no fender rolling

The 69-77 cars exc911ence mentioned do not have the benefit of the flared rear fenders of your 82 SC.

marcesq · marcesq's Garage

Finally something that I have spent 100s of dollars on just to get it . . . You can use the 23mm offset 8x16 wheels from a 951. Phone dials are cheaper than fuchs. With lips rolled and fenders stretched a 225/45 tire will just fit. The front tire would be 205/50.

That having been said if you are looking for a track set up, go with 15x7s all the way around w/225/45-15 hoosiers all the way around . . whaaaa hoooo. Seen that work. All lips must be rolled.

See track pictures on the conversion page. Look for the phone dials

MotoSook · 06:19 PM

I saw an early 911 with 225's all around (I hope that's right) at the last Blackhawk DE. It did not look to have shaved stock fenders and the rims didn't look like 951 rims. I didn't want to piss off the owner (not anywhere near his car) by crawling around it, but it has always bothered me that I couldn't figure it out.

So tonight, with one of the fenders off my car, I thought I would check on a theory I had some time back.

Well, here is Souk's crazy idea No. 35987. The offset difference between a 8-inch 951 rim and a 911 rim is about 13 millimeters. I just ran outside to look things over, and there is what looks to be 13 MM or more clearance between my 6" Fuchs and the front caliper. And there is more between my 205 tire and the strut. The factory spacer is bolted to the brake rotor and the rim is bolted to the spacer.

SO! Why couldn't one get a narrower spacer or shave 10-13 MM off the factory spacer. A little off the inboard side and a little off the outboard side. Then a 911 8-inch rim would work in the front.

It will be tight, but it may still clear.

Lets not discuss the tires front to rear at the moment as it has been done in the pass, but concentrate on how a 911 8-inch rim will work on a standard flare 911 (69+).

I've got a 911 8-inch Fuch and a 7-inch Fuch next to my desk, and the inside structure of the rim (inboard) appear to be the same. Unless the 6-inch Fuch's inside structure is very different, the idea may work.

I really that we are taking a bit of material off the factory spacer, and it's strength will be compromised. How much compromise are we talking about if I shave 5 mm's off the inboard and outboard surface of the spacer...or is this Souk's failed idea No. 35986?

See spacer:

And I'm gonna track down that early car and its owner next season...or I'll never be complete

jrinlv315 · 02-19-2004, 10:06 PM

I have not seen any track cars running phone dials?? Is it just my area or do they make bad, weak rims? Thanks JR

Jim Richards · 02-20-2004, 03:41 AM

Souk, do you forsee any impact on wheel bearings?

MotoSook · 02-20-2004, 04:12 AM

Jim, I've got to do some work on the car this weekend, so I'll take a closer look at things (translation: sit under the car with a beer in hand and stare at it).

KTL · 02-20-2004, 06:17 AM

Quote:

Originally posted by jrinlv315
I have not seen any track cars running phone dials?? Is it just my area or do they make bad, weak rims? Thanks JR

Maybe it's your area or maybe it's that phone dials are kinda ugly? I can't really speak for the strength of the rims. But they're a factory Porsche wheel and I don't think Porsche would compromise too much on the quality or strength of their wheels. Regardless of which car (911, 944, 928, 914, etc.) we're talking about.

The phone dials came on cars much heavier than the 911. Like the 928 & 944 variants. So the wheels should be able to handle the moves of a lighter car like the 911.

I have a set of 16 in. 944 Turbo phone dials if you're interested.

mjshira · 02-20-2004, 06:45 AM

I have 7's on the back of my early 911 and I needed lot's of camber to get them on there! I can't see how 8's would fit, even with rolled fender lips as I have currently (I actually cut away the top part of the fender lip(you can't tell unless you put your hand under there)

So i'd love to see a shot of an 8x16 on an early car

James

KTL · 02-20-2004, 06:56 AM

marcesq was able to get a 225/45-16 tire on a 16x8 phone dial (+23.3mm o/s) in the rear of his 77 911.

Do a search and see how he did it? Just note that the 225/45 is theoretically an inch smaller in overall diameter than a 225/50. This reduced OD is certainly a contributing factor and will throw off your speedo (it'll read faster than actual speed).

mjshira · 02-20-2004, 07:04 AM

I had a set of phone dials (no offence to anyone) which I hated! the PO had been running 7x16 all around. Would the 951 wheel in an 8 work?

gumba · 02-20-2004, 07:09 AM

I used a 912 front hub which is 1/2" narrower than the 911. Put longer studs in and used a 1/4" spacer to get it where I wanted. I took the top shock cover off. All this allowed me to run a 245 Hoosier on a 951 8x16 rim on the front of my '73 w/stock steel fenders. The inside of the lip was rolled. The front has 1.8 camber. This is my track set up. On the rear I use 9x16 factory Fuchs w/275's under a factory RS steel flare.
'73 targa w/3.2 and lots of racing stuff (for sale soon)
'73 S coupe (street car)
'74 RSR clone w/2.8 twin plug (track car)
'68 v.w. crewcab w/2.4 & 5 speed

mjshira · 02-20-2004, 07:10 AM

cool! how about a pic?

KTL · 02-20-2004, 07:12 AM

Yep. The 951 16x8 Fuchs is the same +23.3mm o/s as the 951 16x8, +23.3mm o/s phone dial.

See Bill Verburg's wheel info here:

http://members.rennlist.com/1976c38/index.html

And look at the same chart on page 2 here:

wheel info

MotoSook · 02-20-2004, 07:13 AM

Quote:

Originally posted by gumba
I used a 912 front hub which is 1/2" narrower than the 911. Put longer studs in and used a 1/4" spacer to get it where I wanted.

Wouldn't that be about the same as shaving a little off the 911 hub/space?

KTL · 02-20-2004, 07:14 AM

Gumba,

What type/brand of tire is that 275 series 16 in. tire? Also Hoosier R-spec I assume?

gumba · 02-20-2004, 07:21 AM

Souk, You can probably pick up a set of the 912 hubs very cheap. I didn't see any way to safely mill the 911 hub (I wanted to shave 1/4") without compromising the strength.

Kevin 275/40/16 Hoosiers. I run 2.8 rear neg camber.

Will post pictures of the front hub tomorrow.

Alan.UK · 02-20-2004, 07:25 AM

Here is a pic of a 69 car with 7 and 8 inch fuchs. This is how the car was bought, the cars has since had original deep 6s put on, but maybe it gives you a little more info. The rest of the car was original even with unrolled fenders. I can not remember what the tire size was.

HTH

Alan.UK