924S tire size
09-07-2004, 07:30 PM
#16
Originally Posted by Eric Schall
How competitve are you guys with your 924s's in autocross?
Steve
09-07-2004, 09:26 PM
#17
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Yep, I am not suprised by that. There is a Toyota MR2 in our region that is not only winning E Stock but usally has the FTD or close to it. I my case it must be the driver and not the car!!
Still looking for set up advise!
Eric
Still looking for set up advise!
Eric
01-31-2013, 11:16 AM
#18
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Tires for 924S
I have the 15 inch phone dials on my 1988 924S. I've seen on this site that I can run 205/50/15 on it for track use, but would that lower the car too much for the street? When I read the specs my current 195/65/15s have a circumference 0f 25.1 inches but the 205/50s show at 23.1. That seems like it means that the car would run two inches lower, is that correct?
01-31-2013, 12:55 PM
#19
Holy 9 year old thread!
I use this tire calculator. It's excellent.
Looks like the circumference (the measurement if you wrapped a tape around the outside) is 7.6% smaller with the 205s. That means at 100mph on your speedo, you're actually going 92.4mph.
For the height change, you look at the radius - the distance from the axle center to the ground. The top doesn't matter. The car will sit 1" lower, and have a 1" larger fender gap.
Hope that helps.
I use this tire calculator. It's excellent.
Looks like the circumference (the measurement if you wrapped a tape around the outside) is 7.6% smaller with the 205s. That means at 100mph on your speedo, you're actually going 92.4mph.
For the height change, you look at the radius - the distance from the axle center to the ground. The top doesn't matter. The car will sit 1" lower, and have a 1" larger fender gap.
Hope that helps.
