<VV> Reverse Rotation Cooling

[Mel Francis]

Hmmm, very interesting info. I hope the original poster sees your reply.

On the other hand, backward-flow cooling might require a cooling-off 
period before changing plugs, but it would help keep the pushrods a lot cooler. 
Imagine a blast of hot air coming OUT of that large fan housing, instead! 
A racing application might even resemble the Chapparal 2J sucker-car!

Mel
  ----- Original Message ----- 
  From: jvhroberts at aol.com 
  To: mfrancis at wi.rr.com 
  Cc: virtualvairs at corvair.org 
  Sent: Thursday, May 24, 2012 7:15 PM
  Subject: Re: <VV> Reverse Rotation Cooling


  I did mention (several times) that a serpentine belt, where the fan is driven from the back side of the belt, and a couple of idlers, would allow one to use a stock Porsche fan on a stock engine.

  Now, for a reverse rotation Corvair engine, the Porsche fan spins the same direction as the crankshaft, so, that makes it even easier. 



  John Roberts




  -----Original Message-----
  From: Mel Francis <mfrancis at wi.rr.com>
  To: jvhroberts <jvhroberts at aol.com>
  Cc: virtualvairs <virtualvairs at corvair.org>
  Sent: Thu, May 24, 2012 8:00 pm
  Subject: Re: <VV> Reverse Rotation Cooling


Hey guys, remember the title of this thread is Reverse Rotation Cooling, 
started by a fellow who was interested in changing to the Porsche-type fan 
setup, but already had a reverse rotation engine. I guess you might be the 
person, John, to help supply the answer, since you have one sitting on your 
bench.

Are there any other fans available for the Porsche-type fan housing? I know 
the regular rotation version uses a yellow plastic Mini fan, but that 
particular blade angle wouldn't be of any use running backward, unless you 
wanted to experiment with backward flow cooling, but I doubt that's the case 
here.

Mel Francis