<VV> Re: Incremental Pulley accurate test info?

[levair at aol.com]

The only problem with the incremental pulley is that the belt speed and belt acceleration is not reduced; which is a considerable loss of horsepower and contribules to thrown belts. 
  If you change the diameter of BOTH pulleys you reduce the fan and BELT  speed/acceleration and use a stock belt. The idler pulleys do have to be realigned--not a small task. 
 
Warren
 
-----Original Message-----
From: Taruffi57 at aol.com
To: virtualvairs at corvair.org
Sent: Thu, 23 Mar 2006 00:05:36 EST
Subject: <VV> Re: Incremental Pulley accurate test info?


Hey guys, I have an Otto pulley with the appropriate belts and spacer  
washers which I have yet to install.   I have been advised by several  that 
these 
things can be a real nuisance with thrown fanbelts.  I just want  the facts of 
any known proper testing as to the HP increases possible and  certainly, candid 
comments on that fanbelt problem.  
 
Right now I have done some autocrosses and using Lon's spring loaded idler  
and a Clark's belt, have not dropped a belt.  I WOULD like to have that HP  
increase though.
 
Thanks for your time.
 
Joe Dunlap
Cen. Florida
'64 Monza Vert and '69 500 coupe and close to an  Ultravan
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