Re: MPH and RPM calculator
Scott,
I don't think that the Michelin 195/70vr15 is the right one. I found my original 1969 receipt and guarantee booklet, and they are shown as Michelin 195-15 XWW. The booklet also shows a 70 series, although the 195-15 XWW is listed under the Metric Radial column.
The tires I had were actually accepted as snow tires in most states.
Prices sure change, $282.00 each! I paid $46.00 each in 1969. In 1975, I changed them to the same tire and paid $60.33 each.
It's interesting that 29 years later, I brought them back to the same shop with less then 3000 miles on them, and they wouldn't honor the 40,000 mile guarantee.
See what happens when you get married!
I went to Coker Redline Radials P205/75R15 just recently. They have a 27.1" diameter and are probably near the metric 195-15 tire.
I'm sure there is an unkown tire inflation and thread factor in RPM vs MPH calculation, so I'll probably never know the true speed. I think the 135 MPH at 5300 RPM is in the ballpark.
Jerry
Scott,
I don't think that the Michelin 195/70vr15 is the right one. I found my original 1969 receipt and guarantee booklet, and they are shown as Michelin 195-15 XWW. The booklet also shows a 70 series, although the 195-15 XWW is listed under the Metric Radial column.
The tires I had were actually accepted as snow tires in most states.
Prices sure change, $282.00 each! I paid $46.00 each in 1969. In 1975, I changed them to the same tire and paid $60.33 each.
It's interesting that 29 years later, I brought them back to the same shop with less then 3000 miles on them, and they wouldn't honor the 40,000 mile guarantee.
See what happens when you get married!
I went to Coker Redline Radials P205/75R15 just recently. They have a 27.1" diameter and are probably near the metric 195-15 tire.
I'm sure there is an unkown tire inflation and thread factor in RPM vs MPH calculation, so I'll probably never know the true speed. I think the 135 MPH at 5300 RPM is in the ballpark.
Jerry
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