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Re: My wheels' sizes~!~!~ (archive)
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Posted by ben keyes on February 05, 2001 at 13:16:19:

In Reply to: My wheels' sizes~!~!~ posted by Rybezynski on February 05, 2001 at 01:27:11:


Front: 235/35 19
Rear: 265/30 19

just in case if you guys want to know. i think the difference is pretty large as the car go faster.

the difference is 2% for both front & rear :

225/45-17 = 24.972" tall
235/35-19 = 25.476"

245/40-17 = 24.717"
265/30-19 = 25.260"

the 2% increase in rear tire size would in theory make the car accelerate slightly faster as the rear gear ratio is effectively higher (each turn of the axle takes the car a farther distance), but the 19" wheels are likely heavier than the stock ones, which slows the spooling up of the drivetrain (more interia) some.

I wouldn't want to pay for wheels or tires when you hit a pothole & bend a rim and/or puncture a tire.

I've always agreed with the thought that you use 17" wheels for go (track/auto-x) & 18" & larger for show (unless you have really huge brakes).


Ben
'99 M coupe
lots of wheels, all 17"

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