On Mon, 30 Apr 2007 22:17:16 -0400, Guest wrote:
>
> "L Alpert" <alpertl@[EMAIL PROTECTED]
> wrote in message
> news:qIwZh.4495$uJ6.1044@[EMAIL PROTECTED]
>> Seth wrote:
>>> "Guest" <llcoolj@[EMAIL PROTECTED]
> wrote in message
>>> news:U6adnZa9Ms0q0qjbnZ2dnUVZ_g-dnZ2d@[EMAIL PROTECTED]
>>>>
>>>> "Seth" <seth_lermanNOSPAM@[EMAIL PROTECTED]
> wrote in message
>>>> news:14aZh.216$Kc5.116@[EMAIL PROTECTED]
>>>>> "Guest" <llcoolj@[EMAIL PROTECTED]
> wrote in message
>>>>> news:asGdndu2RNf8tajbnZ2dnUVZ_qWvnZ2d@[EMAIL PROTECTED]
>>>>>> I was thinking about getting some 17's. Does the computer have to
>>>>>> be reset or do any adjustments need to be made?
>>>>>
>>>>> It's not the rim size but the overall diameter of the tire. If the
>>>>> tires you put on the new rim match what was there, no adjustment
>>>>> needed.
>>>>
>>>> Oh yeah, I forgot to tell you that the car came with 15" tires. So I
>>>> am sssuming adjustments must be made. How do I go about doing this?
>>>
>>> You don't have 15" tires. You have tires that sit on a 15" rim and
>>> have an outside diameter larger than 15". It's that outside diameter
>>> that counts. You could put on a 9"rim and if the tire has the same
>>> outside diameter nothing will have to be changed or adjusted.
>>
>> Yeah, but watch those turns.....
>>
>>
> Lol.
Go here:
http://www.miata.net/garage/tirecalc.html
Or here:
http://www.1010tires.com/TireSizeCalculator.asp
This one will give you a range of tires you can put on your car and
maintain the right speedo reading:
http://www.mr2.com/FORMS/tire.html
This will give you tire sizes and sidewall heights:
http://www.rojawheels.com/wheeltech/DiameterCalculator/DiameterCalculator.htm
And read this:
http://www.content-articles.com/article.aspx?i=40357
I put a wider set of tires on a car than the car would accept. But, I
remembered this making turns, and the tires would only hit the frame at
full lock. In that car, full lock was about a 90 degree turn! So I wasn't
too worried about it...
But, there are other things, too. Tires of one size fit on rims of a
certain width. I wanted to put 195/45-14s on a Corolla, but I need a 1"
wider rim (I had the rims on a Celica that would work, but gave the car
away...). Otherwise, the tire may blow off the rim in a hard turn.
Also, check the clearance of the flanges that hold the springs up. A tire
with too much of a diamter may not clear, or rub when going over bumps.
Let's say your original tire size is 205/60-15. A wider, lower profile
tire will give you better handling. In this case, keeping the original
rims, then you could probably go 225/50-15. You'll get decent handling,
good ride and save about $1000...
That is, if $$$ is an object!
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