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Subaru EA-81

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llltoome(at)gvtel.com
Guest

Posted: Fri Dec 01, 2006 2:39 pm Post subject: Subaru EA-81

I am curious to what size radiators are being used  (Square inches) with success for proper cooling on a Subaru EA-81 engine with  carburetors. Also is an oil cooler necessary?

  

 Thanks 

  

 Dick

    [quote][b]

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avtar412

Joined: 15 Nov 2006
Posts: 22
Location: New Zealand

Posted: Sat Dec 02, 2006 12:03 am Post subject: Re: Subaru EA-81

I have a water to oil cooler and 2 tubes through the sump with good airflow and have no trouble with cooling. Turbo as well. Radiator, I started with NSI brass unit but had to go to a purpose built aluminum unit and cools well now. 750mm x 250 x 80 deep.

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propellerdesign(at)tele2.
Guest

Posted: Sun Dec 03, 2006 1:33 am Post subject: Subaru EA-81

Here is a lot interesting information about  cooling,

  

 http://www.rotaryeng.net/how-to-cool12.html

  

 Also attached is an excel file for cooling  estimate.

  

 Jan Carlsson

 www.jcpropellerdesign.com

  

 [quote]   ---

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n10pg(at)neo.rr.com
Guest

Posted: Sun Dec 03, 2006 11:18 am Post subject: Subaru EA-81

Hello Dick:



I use the aluminum radiator furnished by NSI which is 24 x 6 x 2 inch. I

installed a 180 deg thermostat. I confirmed with extensive instrumented

tests NSI's statement that the oil temperature is essentially always the

same as or within a few degrees of the coolant temperature. Therefore an oil

cooler is not required.

Peter Graichen

http:/home.neo.rr.com/n10pg/kitfox.htm 



 

I am curious to what size radiators are being used (Square inches) with

success for proper cooling on a Subaru EA-81 engine with carburetors. Also

is an oil cooler necessary?

 

Thanks 

 

Dick

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