After a little research, I found the answers online at
http://www.oldengine.org/members/plowe/rv-engines/pulley%20speeds.htm
The solutions are:
2420 rpm's,
1.6"
I'm sure hundreds of you were wondering the same
thing!
Henry:)
--- Henry Delchi <hddakota1993@yahoo.com> wrote:
>
> Hello all,
>
> I have a mathematical question for the
> mathematicians
> (or someone just good at math)
>
> If a 5.5" crank pulley is turning at 1100 RPM's, how
> many RPM's would the 2.5" alternator pulley be
> turning?
>
> What diameter would the alternator pulley have to be
> to keep it spinning at the same speed figured above
> but with a reduced crank pulley speed of 700 RPM's?
>
> Please also provide the formula used to figure this
> out.
>
> Thanks!
> Henry Davis
>
>
>
>
>
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