Jeff, we spoke about this matter before. 4cyl stock tire is 195/70/14. Now plugging numbers into that miata.net tire calculator, 205/55/16 is 0.5% off while 205/60/16 that you suggested is 3.8% off. If I went to 215, correct size is 215/50/16 which is 1.1% off while your measurement of 215/55/16 would be 2.3% off.
Trust me, I've done this research a long time ago. Verify if you wish at http://www.miata.net/garage/tirecalc.html
So my choices are 205/55/16 or 215/50/16
Now I do not want to lose ANY standstill acceleration, so I think going +2 in wheel diameter and 10mm wider will give me the perfect compromize between acceleration and handling. Keep in mind, I am getting summer Z-rated "ultra" high performance tires. 215 might be "too much tire." Although after riding with my new suspension I am almost considering going 215/50/16. But with potholes in Toronto I am having second thoughts. I will look into it before I order rims though.
Quote:
On 2001-07-09 21:53, Spectra Blue Camry wrote:
Also, you're only getting the "low profile" because the tire is too small. 205 width should be a 60 aspect ratio. You should only do the 55 ratio with a 215.
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<font size=-1>[ This Message was edited by: speedemn on 2001-07-09 22:31 ]</font>
