<VV> Electric cooling fan results

[Ron]

Why do you assume that the stock blower is so bad?  It's a very clean design 
and is a real blower, not a fan.
RonH

----- Original Message ----- 
From: <JVHRoberts at aol.com>
To: <mfrancis at wi.rr.com>; <virtualvairs at corvair.org>
Sent: Sunday, July 29, 2007 2:26 PM
Subject: Re: <VV> Electric cooling fan results


>
> The stock fan is horrible and inefficient. However, perhaps a 911 fan?
> Efficient, and since there's an electric motor, its CW rotation doesn't 
> matter.
> Still, it's reasonable to assume it'll take a BUNCH of HP to spin any 
> reasonable
> fan.
> And it's probably simpler, etc., to come up with a  better fan in the 
> stock
> location with the stock drive. HEck, it's hard to do worse!
>
> In a message dated 7/29/2007 3:33:39 P.M. Eastern Daylight Time,
> mfrancis at wi.rr.com writes:
>
> The main  reason we are all interested in an electric cooling fan is that
> it be  electric, for the obvious benefit of low drag on the engine at top
> speed.  Also, the benefit of achieving aftercooling between runs at an
> autocross,  etc.
>
> Since the fan tested was a bladed fan, which has now shown to be  unable
> to effectively pressurize a Corvair engine cooling system, how  about
> retaining the stock impeller fan and mounting an electric fan motor  to
> the top of the existing fan pulley?
>
> I've found a fan motor  online, made as a factory replacement for the
> current GM V8 line. This  motor could be mounted on a tripod bracket
> above the fan pulley, with a  suitable drive connection between.
>
> It would appear that this setup  might have the benefits of electric
> cooling, with none of the low-pressure  drawbacks of a bladed fan. You
> wouldn't have to modify anything below your  upper shroud either.
>
> Since the testing group already has the test  vehicles still in hand,
> perhaps this mod could be readily done and a second  test performed,
> maybe with better results.
>
> Does this look like a  reasonable alternative to the testers?
>
>
>
>
>
>
>
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