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From: SHIPCHIEF@aol.com
Message-ID: <c49.448d568a.37e40e7f@aol.com>
Date: Thu, 17 Sep 2009 18:13:19 EDT
Subject: Re: [FlyRotary] Re: Re RV-8 cooling test
To: flyrotary@lancaironline.net
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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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<HTML><FONT FACE=3Darial,helvetica><HTML><FONT  SIZE=3D2 PTSIZE=3D10 FAMIL=
Y=3D"SANSSERIF" FACE=3D"Arial" LANG=3D"0">Thanks for that.<BR>
I'm making my radiator chin scoop right now.<BR>
I made a 'buck' out of 2 part pour foam, then cut &amp; 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.<BR>
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 abou=
t 1/2" more depth.<BR>
My oil cooler exit area is really over sized. It is kept separate. The rig=
ht cowl inlet is ducted to the oil cooler, then exhausted straight out the=
 right side thru louvers.<BR>
The left cowl inlet has not been made yet. It will feed air to the turboch=
arger and provide surface cooling air for the exhaust system and fuel inje=
ctors. If that chokes the air exit at the bottom, I'll have to make a left=
 side hot air exit as well. <BR>
Tracy, your comment about overheated coils and alternator has me thinking=
 about blast tubes?<BR>
Scott</FONT></HTML>

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