Mailing List flyrotary@lancaironline.net Message #48188
From: <SHIPCHIEF@aol.com>
Subject: Re: [FlyRotary] Re: Re RV-8 cooling test
Date: Thu, 17 Sep 2009 18:13:19 EDT
To: <flyrotary@lancaironline.net>
Thanks for that.
I'm making my radiator chin scoop right now.
I made a 'buck' out of 2 part pour foam, then cut & sanded to shape. After laying up the part, and removing it, I began to remove the edges. Good thing I made it too deep. Now you guys have revisited the Exit/Inlet relationship issue.
A little time with a ruler, some quick math, and some trimming is leading me right to the reccomended 30% bigger exit area than inlet area for the radiator. I was going to use Van's original exit, but now I'm adding about 1/2" more depth.
My oil cooler exit area is really over sized. It is kept separate. The right cowl inlet is ducted to the oil cooler, then exhausted straight out the right side thru louvers.
The left cowl inlet has not been made yet. It will feed air to the turbocharger and provide surface cooling air for the exhaust system and fuel injectors. If that chokes the air exit at the bottom, I'll have to make a left side hot air exit as well.
Tracy, your comment about overheated coils and alternator has me thinking about blast tubes?
Scott
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