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-   -   Tire size (http://forums.pelicanparts.com/porsche-911-technical-forum/941644-tire-size.html)

ppetion 01-06-2017 07:48 PM

Tire size
 
I have turbo flares installed.
The wheels are BBS 7 1/2 front and 8 1/2 rear
What size tire is recomended to dil these flares .
TIA

Quicksilver 01-07-2017 06:20 AM

You'll need to specify the diameter.
BTW - The rears sound a bit narrow for a turbo flare. If it is a 3 piece wheel you can get different barrels to adjust that.

Sboxin 01-07-2017 07:30 AM

Quote:

Originally Posted by ppetion (Post 9423146)
I have turbo flares installed.
The wheels are BBS 7 1/2 front and 8 1/2 rear
What size tire is recomended to dil these flares .
TIA

Agree - wheels are too narrow for the widebody - or you will need big spacers to get the tires out to the fender . . .

We are running Hoosier R7 245/40/17 front and 315/35/17 rear on 9" and 10.5" 17" rims with
spacers both front and rear . . . and the 245 R7 is almost the same width of a 275 . . .
And, we do have some inside rubbing on tight lock-to-lock turns- no damage to tire or car body

All the best on your project . . .

Regards,

hangar21 01-07-2017 07:58 AM

Agreed, here's my 87 with turbo flares. My fronts are slightly different;
Front, 17"x9" 255/40ZR17 a slight rub ( no damage) at tight wheel lock out
Rear, 17"X11.5" 315/3535ZR17
http://forums.pelicanparts.com/uploa...1483804729.jpg

javadog 01-07-2017 08:13 AM

Wrong question. Tire size is related to wheel width. You can only go so wide on the tires, probably a 225 width on the front and a 245 width on the rear. Check with the tire manufacturer for their recommended wheel sizes.

For filling the flares, consider the wheel offset and spacer width. You're probably stuck with the offset you have, unless you have 3 piece wheels and are willing to modify them. Spacer width will be determined by what offset you have.

JR

rattlsnak 01-07-2017 01:22 PM

The factory widebodies ran 7s & 8s. Either run a spacer or get a different offset using a different size wheel barrel.

ppetion 01-07-2017 02:28 PM

The wheels are 16inch . I have 3 in spacer in the rear and 1 1/2 front .

petercory 01-07-2017 03:01 PM

Take a look at the specifications listed on various mfg. 16" Tire Charts on the Tire Rack site and they'll list the min and max rim width for each tire size. The charts also include tread width and section width as well.

bv911 01-07-2017 07:22 PM

To me, easy answer would be 225/50 front, 245/45 rear. I think factory Turbos ended with 205/55's front, 245's rear, but 205's on a 7.5-inch rim might be a little tight.

Hope this helps…


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