<VV> Toothed Belt/Pulley

[RoboMan91324 at aol.com]

Scotty,

It is likely that, with a stock fan, the toothed belt would lose its teeth 
very quickly.  The high inertia of the fan would want to maintain its speed 
during quick changes in engine speed.  The Corvair belt/pulley system was 
designed to slip under these changing speed conditions to reduce stress on the 
belt and keep it from flying off.  That is why our belts must be loose.

Doc
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In a message dated 3/28/2010 12:05:04 PM Pacific Daylight Time, 
virtualvairs-request at corvair.org writes:

> From: ScottyGrover at aol.com
> To: mfrancis at wi.rr.com
> Sent: 3/25/2010  1:08:26 P.M. Pacific Daylight Time
> Subj: Re: fans and such
> 
> 
> I'm wondering whether toothed belts can be made to go over toothed  
> pulleys 
> with a bend in the belt similar to the stock system. If they can, and  if 
> belts can be found that will handle the power needed to drive the fan to  
> higher RPM's, it might help with the cooling problem. At the very least, 
> it  
> would prove or disprove the theory that the limit to CFM's delivered is 
> the  
> slip in the belts when the belt can no longer handle the HP needed to 
> drive  
> the fan at higher RPM's
> 
> Scotty