We have a bunch of CPU engineers on the list and probably not many ME's
But here goes;
Circumference or perimeeter=2pie r = pie d
r= radius
d= diameter
Not too bad for a wire salesman, HUH ?
-----Original Message-----
From: Bob Norway [mailto:examiner@scci.net]
Sent: Friday, July 30, 1999 6:40 PM
To: Arthur H. Smith
Cc: SPITFIRES
Subject: Re: RPM to MPH Question
"Arthur H. Smith" wrote:
> Message text written by "Tom Ambrose"
> >Can anyone point me to a formula that converts RPM to MPH using tire
size,
> tranny gear ratio, and diff ratio? What'd I forget?<
>
> engine rpm divide by final ratio times the circumferance of the rear tires
> (in inches) then divide by 12 then divied by 5280 (or divide by 63,360
> inches per mile).
>
> The arthur >;-} :4 O:-)-}8<
> www.anedieco.com/tr.html
> kit car aka 69 GT6
> 82 XJ6 Jaguar (Jennifer)
> boxy thing on wheels aka ford aerostar (boxy lady??? 8-} )
OK, what's the formula for finding the circumference if all you know is the
diameter?
--
Bob Norway
Rockledge, Florida
Home Page http://www.geocities.com/CapitolHill/Lobby/5953/mypage.html
ICQ# 3752712
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