Hi Graham!
I used the Marcotte M150 drive made in Canada. Its been very good so far.
http://www.geocities.com/rayfiset/psru.html
More info here:
http://www.sdsefi.com/air14.html
The engine was built by Ram Performance Subaru in Dayton Ohio
http://www.ramengines.com
He has a new 200 hp Supercharged EA81 with Rotrex supercharger on his site
now.
I don't know of any unhappy users at this time!
Glenn
>From: Graham Singleton <grahamsingleton@btinternet.com>
>Reply-To: europa-list@matronics.com
>To: europa-list@matronics.com
>Subject: Re: Europa-List: Perfect cooling diffuser
>Date: Fri, 01 Dec 2006 23:29:01 +0000
>
><grahamsingleton@btinternet.com>
>
>Glenn
>Which Subaru conversion did you use, the weak link often seems to be the
>reduction drive.
>Graham
>
>GLENN CROWDER wrote:
>
>>I created an almost exact copy of the Kuchemann/Weber perfect
>>diffuser on my Europa to try and keep my 135 hp EA81 cool.
>>All cooling on the EA81 is thru the water jacket and none is done by air
>>cooling on the 912/914 so the ducting has to be good.
>>Both cooling in the air and ground are very good. I can run the
>>engine as long as desired at 1800 rpm on the ground without over
>>heating even on a 100 F day. In the air, water temps to go 200 F
>>after a 2 minute climbout then drop back to 185 for cruise.
>>There is a 12" long diffuser section that expands like a bell to
>>slow and pressurize the incoming air. After the rad, there is a
>>converging duct that accelerates the hot air back to free stream.
>>There also is a pull up cowl flap inside the converging section
>>that allows most of the incoming air to be shut off under cruise
>>conditions, adding 10 mph by cutting the flow and associated
>>drag when its not needed. Works great!
>>
>>Glenn
>>
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