Anyone running Fuchs J7 x 15 and 215 50 15 for a 69 911?

[CidTito]

I have an option in running Fuchs J7 x 15 w/ 215 50 15 on all four corners for my 1969 911T w/ 3.2L engine. Its the "having wider a tire idea that increases surface area tread patch because of the significantly heavier engine" scenario. I have seen an AX SWB 1968 911 running Fuchs J7 x 15 with 215 50 15 tires but I don't know about the LWB 1969, which then begs the question if the wheel well clearance for the 1969 is exactly the same as the 1968? The car has stock flares and is not rolled.


Tito.

[Norm01]

The clearance is not the same from 68 to 69. I was told a 7" will fit a 68 and that a 69 will only take a 6". My 68 has spacers in the rear that can be removed to gain 7 or so mm. I bolted up 225/50/16 7" Fuchs on the weekend and believe they would not rub however very tight on the inside and out. I will swap out the the rears for 205/55/16, I have 6" Fuchs for the front and want to run 185 up front however tires are scarce in 185 16". I may run 205/50/16 out back and 185/55/16 in the front, a bit better tire selection however the diameter will be 610mm to the stock 632 and throw the speedometer off by 2 to 3 mph.

[Chuck Miller]

Tito,

I'm not familiar with the size 215 x 50 x 15... Are you sure you don't mean 215 x 60 x 15?

[Eminence Gris]

I have an option in running Fuchs J7 x 15 w/ 215 50 15 on all four corners for my 1969 911T w/ 3.2L engine. Its the "having wider a tire idea that increases surface area tread patch because of the significantly heavier engine" scenario. I have seen an AX SWB 1968 911 running Fuchs J7 x 15 with 215 50 15 tires but I don't know about the LWB 1969, which then begs the question if the wheel well clearance for the 1969 is exactly the same as the 1968? The car has stock flares and is not rolled.

Tito.

I chose 195/55 15 for my 7's. Looks very good IMO, and no clearance issues.

[CidTito]

Tito,

I'm not familiar with the size 215 x 50 x 15... Are you sure you don't mean 215 x 60 x 15?

Hi Chuck...

Terry Zaccone 1968 911 runs the 50 sizes. I am definitive on the "215 50 15" tire size, though I must admit that tire selection is rare. In the United States there seems to only be 4 of those sizes of tires produced. BF Goodrich "GForce", Yokohama, Kuhmo, and one other makes such a size. The 215 60 15 are stock for front wheels on a staggered 944 setup and will rub profusely with the 69 911.

Eminence Gris' setup of 195 55 15 is a great setup, but in that scenario I would be hoping to maximize tire patch because of the later style SC engine weight/output that is in my car.

Norm has established and confirmed the clearance differences between the 68 and 69. Thank you Norm.

Tito

[Eminence Gris]

Wow. Terry Zaccone... been a long time since I've heard that name. I used to run autocross with GGR and LPR in the mid-70s and that '68L was everywhere, all the time.

[gsjohnson]

I question the accuracy of some of the information in this thread. There is a no reason for a 69 to have less wheel well clearance than a SWB 68 911. At the very least, the clearance would be the same. The 69 is a larger car. As Chuck stated, a more proper size would be 215x60x15 and you really need to know what offset 7" wheel you are running before you can determine what tire will clear or not clear. A 50 series tire may give you more tread on the ground, but the profile is incorrect for your car. Your cheating by putting short low profile tires (roller skates) on to avoid fender rub so you can get more tire on the ground. If you perform a search here, you find all kinds of different tire scenerios that will or will not work depending on your wheel offset selection. I'd do more homework before you buy. I'm running 7x15 wheels with 34mm offset and 215x15x60 Yokohamas. The key here is the wheel offset. Offset and backspacing are two different numbers by calculation. You can makeup offset differences through the use of spacers, but you should calculate all of this so you will know what you will end up with. No guessing. Just my .02

[CidTito]

Wow. Terry Zaccone... been a long time since I've heard that name. I used to run autocross with GGR and LPR in the mid-70s and that '68L was everywhere, all the time.

Terry is doing very well still kicking butt with AX with GGR.

[CidTito]

I question the accuracy of some of the information in this thread. There is a no reason for a 69 to have less wheel well clearance than a SWB 68 911. At the very least, the clearance would be the same. The 69 is a larger car. As Chuck stated, a more proper size would be 215x60x15 and you really need to know what offset 7" wheel you are running before you can determine what tire will clear or not clear. A 50 series tire may give you more tread on the ground, but the profile is incorrect for your car. Your cheating by putting short low profile tires (roller skates) on to avoid fender rub so you can get more tire on the ground. If you perform a search here, you find all kinds of different tire scenerios that will or will not work depending on your wheel offset selection. I'd do more homework before you buy. I'm running 7x15 wheels with 34mm offset and 215x15x60 Yokohamas. The key here is the wheel offset. Offset and backspacing are two different numbers by calculation. You can makeup offset differences through the use of spacers, but you should calculate all of this so you will know what you will end up with. No guessing. Just my .02

oh great.. now i have start all over except that Terry Zaccone is a super nice and fast driver. Ill looking what might be my specific offset differences and backspacing calculations.

[KenJ]

I could be mistaken, but I believe Mr. Zaccone is running 225 Hoosiers on cookie cutters all around. Without the additional oil lines in the right rear, he's mentioned he needed to use some "carriage" type bolts on the spring plate to eliminate rubbing on the inside. I'm running 225/50/15 streets - BUT, I'm using Wiedman special offset 7" weld-ups.