I just recently purchased a set of stock VR4 wheels and as far as I knew they were supposed to have 245/45Z17 tires but mine came with 275/40ZR17. Everything seems to fit fine with no rubbing I was just wondering what tire size is best. They need new tires and I want to get the right tire size. And lastly when I get new tires (which will be soon) should I get them in 275 or 245?

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get 245 275 will slow u down up top 245 is plenty out of the whole they wont spin on stock horsepower and 245 is cheaper

I don't think that you want to go less than 7.5 inches wide.

Also remember that you do not want to cheap out on the speed rating. If it calls for a Z rated Speed rating that's what you need. The speed rating is not just for the cornering speed of your car. It's how thick the side wall is, and how it handles the wieght of the car vs the heat that the side wall can abosorb.

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Just a little clarification: the second number in the tire size (the "40" in 245/40/17), is declaring the sidewall height of the tire, and not the width. I can't be certain that the 275 series tire will fit, as that would actually widen the tire. Just be careful that when changing tire size you know which number represents what characteristic. I believe 265 series tires fit on the stock 17" 1G wheels without rubbing at all, but I thought I heard the 275s rubbed. Also, you should probably run Z rated tires, they're going to hold up to high speed runs with more safety.

-Matt

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1993 Sandstone Gray Metallic VR-4 (1 of 56)
11.77@122
11.76@119

I know what all the numbers mean. And the fitment isn't an issue. I actually have 275's on there right now with no rubbing and they actually have almost the same rolling radius as the 245/45's so it works out pretty well. After doing research and lookiing at how other peoples tires fit I im just going with stock tire size and obviously Z rated.

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275/40/17 tires may or may not fit. It depends on the tire contstruction. If the edge of a 275 tire is rounded it is more likely to fit on a VR4. If its more of a squared off edge, you might get some rubbing. I'm guessing the old 275s you have on there now must have a rounded edge, so they don't rub.

But I'd do what you are planning and just get some good 245/45/17 tires.

later,
Curt

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