non-stock size tires

wrose · 07-25-2010, 08:16 AM

I am looking to get more tire on the pavement for the track without upgrading the standard rims and with stock suspension .
Anyone have recommendations on upgrade size that will work and also brand of tires?
Thanks
Wayne

RBull · 07-25-2010, 08:59 AM

Wayne, there's a number of threads on this in wheels and tires. You should look at at a wheel calculator to see the differences in diameters and consider the tradeoffs - size difference maxing out on OE width etc.

Short version-

fr 235 40 r 265 35

or

fr 245 35 r 275 35

Tires - here's a few more common ones - Dunlop Direzza Star Spec, Hankook V12 Ventus and what I just bought yokohama AD08 in OE size (limited sizes). Check tire rack for options and tests.

aerobod · 07-25-2010, 11:01 AM

Due to the cross-section of the Star Spec that is wider than the nominal tyre size, it will likely put the most rubber on the road on a stock car with 245/40-18 front and 275/35-18 rear. I have this configuration on my car on stock wheels. The rear tyre is about 290mm sidewall to sidewall, the front tyre about 260mm.

07-25-2010, 08:16 AM	#1
wrose Private 13 Rep 91 Posts Drives: 2007 Z4MC Join Date: Oct 2009 Location: NS,Canada iTrader: (1) Garage List 2006 Z4M Roadster [8.50] 2007 Z4MC [0.00] 2005 X3 [0.00]	non-stock size tires I am looking to get more tire on the pavement for the track without upgrading the standard rims and with stock suspension . Anyone have recommendations on upgrade size that will work and also brand of tires? Thanks Wayne
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07-25-2010, 08:59 AM	#2
RBull Captain 12 Rep 725 Posts Drives: 2007 M Coupe Join Date: Apr 2010 Location: Nova Scotia iTrader: (0)	Wayne, there's a number of threads on this in wheels and tires. You should look at at a wheel calculator to see the differences in diameters and consider the tradeoffs - size difference maxing out on OE width etc. Short version- fr 235 40 r 265 35 or fr 245 35 r 275 35 Tires - here's a few more common ones - Dunlop Direzza Star Spec, Hankook V12 Ventus and what I just bought yokohama AD08 in OE size (limited sizes). Check tire rack for options and tests.
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07-25-2010, 11:01 AM	#3
aerobod Car Geek 3708 Rep 3,621 Posts Drives: Caterham R500, M2-G87, Macan S Join Date: Mar 2008 Location: Calgary iTrader: (0)	Due to the cross-section of the Star Spec that is wider than the nominal tyre size, it will likely put the most rubber on the road on a stock car with 245/40-18 front and 275/35-18 rear. I have this configuration on my car on stock wheels. The rear tyre is about 290mm sidewall to sidewall, the front tyre about 260mm.
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