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Can I used 285x75x16's?

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Posted by: blkZ28Conv

Can I used 285's in place of the 265's on my stock chrome 16" rims.
I want to fill fender wells more. Will this effect the PCM in a bad way (shift points).
I am looking at the Michelin LTX M/S series which the 285's are 1.5" taller.
TIA

Posted by: Sifrino3

285 will not raise the car. That is how wide your tire is. That 75 will be a truck tire. Maybe you should go to a tire dealer and look at some. . .

Posted by: stuntin_

285 is the width, but if the aspect ratio remains the same the tire will be taller, your shift points shouldn't really be affected but your speedometer will be out a little bit(which could be fixed with a computer reprogammer) i would say go for it, figure out how much your speedometer is out by pacing someone u know, and just live with it...if the new tires are only 1.5"s taller the speedometer shouldn't be too far out anyways

Posted by: blkZ28Conv

Thanks guys,
I will be looking into this, the tire is actually 285x70x16. Sorry for the typo. Just would like to fill tire well more. I do not plan any off-roading.

Posted by: Jibit

Quote:

Originally Posted by blkZ28Conv

Thanks guys,
I will be looking into this, the tire is actually 285x70x16. Sorry for the typo. Just would like to fill tire well more. I do not plan any off-roading.

This may help some in the comparison

http://miata.net/garage/tirecalc.html

Posted by: blkZ28Conv

Wow!!!
Excellent reference Jibit!!!
Thanks so much.

Posted by: Jibit

Quote:

Originally Posted by blkZ28Conv

Wow!!!
Excellent reference Jibit!!!
Thanks so much.

No prob, just make sure to post some pics when you get the new tires!