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emsdoc's Avatar
 
Join Date: Sep 2005
Location: central texas
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tire size for wide body 911

I currently have 205 front and 245 back tires on ronal rims on my 77 911 with wide body conversion...I think i can go wider on the wheels and tires and would like to go back to fuchs...can anyone advise the optimum size wheels and tires for fast street use with the correct offset and/or spacers that I might need?
Thanks very much...
Old 07-25-2010, 07:58 PM
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What is the powerplant driving your car??

When you go wider with wheels and tires you increase weight that needs to be rotated. If you dont have big power to rotate it, you are flushing money down the toilet and decreasing the performance.

But, if you are just after the look, the by all means look for an 11 inch rear and a 9 inch front and use a 315 tire on the rear and a 255 on the front.....

Cheers
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Old 07-25-2010, 09:45 PM
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Thanks for the reply...yes I should have mentioned the power plant in the inquiry..I am building a fairly high performance 930 turbo engine...so want to replicate the peformance of 930. K27, SC cams, big intercooler, and some mild intake and exhaust mods...maybe 325-350 hp....
Old 07-26-2010, 01:06 AM
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Quote:
Originally Posted by Jeff Alton View Post
What is the powerplant driving your car??


But, if you are just after the look, the by all means look for an 11 inch rear and a 9 inch front and use a 315 tire on the rear and a 255 on the front.....

Cheers
I got those sizes BBS 17" and with 245 front, it's a little too wide.....my car has been lowered ( - 1,5" front ) and front tires are rubbing the inside of the front flares with the weight transfer when changing direction....I will probably come back to 225 front.....rear, 315 are OK.
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Old 07-26-2010, 12:26 PM
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Ride height and suspension settings and wheel size affect what size tire will fit the hole. For stock height 930 255/315 is fine. I have run as wide as 265/345 with minimal rub.
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Old 07-26-2010, 01:29 PM
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I've got Sumitomo 315/35/17 R & 245/45/17 F on Fikse 10x17 & 8x17. Tires were just of $400 shipped from americanmuscle.com
Old 07-26-2010, 04:26 PM
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