Tire size question - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Oct 14, 2014 | 02:18 PM

viprklr

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Tire size question

I have been running on 19" rims/tires for quite some time now. I've purchased 18"hollow spoke rims to run at the track to give me a few more tire options.
18x8 +50
18x11 +45

I spoke with John Berget at JBR & would like to run Hoosier slicks. We were discussing the tire height.
I have two questions:
1. Any ideas on the tire size that I should run.
2. Should the height of the tires be the same front/rear to avoid gear differential issues.
Thanks Todd

Last edited by viprklr; Oct 14, 2014 at 02:36 PM. Reason: edit word

Oct 14, 2014 | 03:21 PM

pwdrhound

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Quote:

Originally Posted by viprklr

Hoosiers in a 240/640-18 and 305-645-18. Same diameters...

Oct 14, 2014 | 03:55 PM

viprklr

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Thanks pwdrhound. I appreciate your help. Just got them ordered for a DE at Mid Ohio next weekend.
Thx

Oct 14, 2014 | 04:02 PM

pwdrhound

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Quote:

Originally Posted by viprklr

Thanks pwdrhound. I appreciate your help. Just got them ordered for a DE at Mid Ohio next weekend.
Thx

You're welcome. Glad to help... Make sure your shop dry mounts them or uses hairspray. Do not under any circumstance let them use any kind of mounting paste.

Last edited by pwdrhound; Oct 14, 2014 at 04:06 PM.