<VV> How about the cooling fans from these engines?

jvhroberts at aol.com jvhroberts at aol.com
Tue Jul 30 01:20:09 EDT 2013

 At only 20% efficiency at full speed, it should be easy to get more air flow and pressure without more HP. 


John Roberts


-----Original Message-----
From: Ron <ronh at owt.com>
To: BobHelt <BobHelt at aol.com>; jvhroberts <jvhroberts at aol.com>; mfrancis <mfrancis at wi.rr.com>
Cc: virtualvairs <virtualvairs at corvair.org>
Sent: Tue, Jul 30, 2013 12:23 am
Subject: Re: <VV> How about the cooling fans from these engines?

You're sure right about that, Bob!  It would take a complete redesign of the 
heads and cylinders to make a noticeable difference.  If a fan that could 
force more air thru was installed, it would only require more power.

----- Original Message ----- 
From: <BobHelt at aol.com>
To: <jvhroberts at aol.com>; <mfrancis at wi.rr.com>
Cc: <virtualvairs at corvair.org>
Sent: Monday, July 29, 2013 8:44 PM
Subject: Re: <VV> How about the cooling fans from these engines?

> Oh come on now!!  That isn't a fan problem. That's a  problem with the
> heads and cooling surfaces. A fan capable of developing greater  cfm 
> and/or
> greater pressure just isn't going to force that much more air thru  the 
> heads
> and/or rest of the engine.
> Regards,
> Bob Helt
> In a message dated 7/29/2013 6:06:07 P.M. US Mountain Standard Time,
> jvhroberts at aol.com writes:
> Also, we  know the Corvair fan is horribly inefficient, and for high perf
> apps, it just  isn't enough. Ask a turbo owner or anyone who really races
> these things, and  they'll all tell you, the stocker just isn't up to the 
> job.
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