<VV> LM tire diameter

[Mark Corbin]

Bruce,

I don't think that that is quite accurate, either. I have a set of
Kelly-Springfield 7.00-13's that I ran on my convert for years. I did a
milage check on them once, via a highway milage check that was laid out for
that purpose, and they came within 100 feet of being dead-on accurate.
Maybe the original Uniroyal Larado rain tires weren't accurate, but those
replacement market Kelly's sure were.

-Mark


> [Original Message]
> From: Bruce Schug <bwschug at charter.net>
> 
> Mark,
>
> The question was, "What is the generally accepted correct tire  
> diameter for a stock 7.00 13 that came with a LM?"
>
> I answered Mike's question above. The answer is 25.3"
>
> The question you answered was, "What diameter tire should I use if I  
> want to have an accurate speedometer and odometer?"
>
> The answer is, one that provides 825 revs/mile.
>
> These are two different questions, two different answers, and probably  
> two different tires. The obvious reason for this is that on an  
> original Corvair, the tire diameter was incorrect to obtain correct  
> speedometer and odometer readings. Everyone knows, they weren't  
> accurate. The reason they weren't accurate is because the tires  
> weren't of the correct diameter to make them accurate.
>
> Bruce W. Schug