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

[Mel Francis]

For the money involved, there's no better fan than the stock Corvair fan and that's not an assumption with no basis. 
If you want to spend thousands of dollars developing a cast adapter for an industrial vane-axial fan to a Corvair engine,
go for it! You will have achieved the same thing as the existing Porsche-style vertical fan setup and that costs hundreds.

In its horizontal location, the Corvair fan supplies high pressure air outwardly, directly to the curved 
downturn in the stock upper shroud. This downturn is positioned exactly where it needs to be, in order to direct the 
cooling airflow precisely into the heads at their hottest point, the exhaust valve seat area in the castings.

Mel
  ----- Original Message ----- 
  From: jvhroberts at aol.com 
  To: mfrancis at wi.rr.com ; ronh at owt.com 
  Cc: virtualvairs at corvair.org 
  Sent: Monday, July 29, 2013 3:40 PM
  Subject: Re: <VV> How about the cooling fans from these engines?


  Again, an assumption with no basis. The main reason I posted these is they are, without a doubt, a LOT more efficient than the Corvair blower simply because these engines are meant to deliver their rated output continuously. And that number is WAY higher than the continuous rating of a Corvair engine! And why stick with the vertical fan axis? This one can be driven without the twisted belt. 



  John Roberts




  -----Original Message-----
  From: Mel Francis <mfrancis at wi.rr.com>
  To: Ron <ronh at owt.com>
  Cc: virtualvairs <virtualvairs at corvair.org>
  Sent: Mon, Jul 29, 2013 3:07 pm
  Subject: Re: <VV> How about the cooling fans from these engines?


Even if these fans were available for $5 apiece, the main problem would be 
their weight, or rotating mass. GM went to great lengths to develop a 
lighter fan, the magnesium version, that wouldn't cause the Corvair's unique 
twisted-belt system to double up on itself, as badly as with the earlier 
all-steel versions, during quick downshifts.

Mel


----- Original Message ----- 
From: "Ron" <ronh at owt.com>
To: <fastvair at yahoogroups.com>; <virtualvairs at corvair.org>; 
<jvhroberts at aol.com>
Sent: Monday, July 29, 2013 1:55 PM
Subject: Re: <VV> How about the cooling fans from these engines?


> Very nice but there's one important item missing, price!  I assume that 
> they
> are very expensive.
> RonH
>
> ----- Original Message ----- 
> From: <jvhroberts at aol.com>
> To: <fastvair at yahoogroups.com>; <virtualvairs at corvair.org>
> Sent: Monday, July 29, 2013 6:16 AM
> Subject: <VV> How about the cooling fans from these engines?
>
>
>> Note, they turn CCW. And, being continuous duty, I am gathering they have
>> to be efficient, as these engines need to operate for thousands of hours
>> at full power.
>>
>> http://www.deutz.com/live_deutz_products/file/8a85818a11c1035d0111dfea87260238.de.0/obj_doku-33697-001_fl-912-w_ind_en.pdf
>> http://www.deutz.com/live_deutz_products/file/8a85818a11c1035d0111e01be73f0291.de.0/datenblatt+914+bau+en+0603.pdf
>>
>>
>>
>>
>>
>> John Roberts
>> _______________________________________________
>> This message was sent by the VirtualVairs mailing list, all copyrights 
>> are
>> the property
>> of the writer, please attribute properly. For help,
>> mailto:vv-help at corvair.org
>> This list sponsored by the Corvair Society of America,
>> http://www.corvair.org/
>> Post messages to: VirtualVairs at corvair.org
>> Change your options:
>> http://www.vv.corvair.org/mailman/options/virtualvairs
>> _______________________________________________
>>
>
> _______________________________________________
> This message was sent by the VirtualVairs mailing list, all copyrights are 
> the property
> of the writer, please attribute properly. For help, 
> mailto:vv-help at corvair.org
> This list sponsored by the Corvair Society of America, 
> http://www.corvair.org/
> Post messages to: VirtualVairs at corvair.org
> Change your options: 
> http://www.vv.corvair.org/mailman/options/virtualvairs
> _______________________________________________
> 

 _______________________________________________
This message was sent by the VirtualVairs mailing list, all copyrights are the 
property
of the writer, please attribute properly. For help, mailto:vv-help at corvair.org
This list sponsored by the Corvair Society of America, http://www.corvair.org/
Post messages to: VirtualVairs at corvair.org
Change your options: http://www.vv.corvair.org/mailman/options/virtualvairs 
 _______________________________________________