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From: "Hapgood, Matt" <Matt.Hapgood@funb.com>
To: "'lancair.list@olsusa.com'" <lancair.list@olsusa.com>
Subject: RE: Oil Cooler Air Inlet (LNC2)
Date: Mon, 12 Mar 2001 11:07:15 -0500
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          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
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>>
First Union Securities, Inc.

Rob -

I will try to provide some data, but at this point my experience is limited.
(less than one hour of total flight time).

Details of installation:
Lycoming IO-360, turbocharged (oil cooled turbo)
single Positech 4215 oil cooler
ducted from baffle behind #3 cylinder, vented to open area behind engine
Engine plenum configuration

I have experienced oil temperatures that are TOO hot, even on cold days.  I
have just completed a modification to the oil cooler setup that I hope will
improve oil temps.  Modifications include dedicated 3" NACA duct air inlet
to a larger (Positech 4219) oil cooler.   NACA is on copilot side, about 2"
below the junction from upper to lower cowl.  Also has a dedicated outlet
that is the reverse louvered gills on the upper cowl.  

I'll post how it works (or doesn't work) after it has flown...

Matt

______________________

> I'd like to get comments, particularly from 360 drivers who take air off
> the 
> baffling and have or don't have cooling problems.  (I'm assuming that
> those 
> of you with NACA scoops don't have cooling problems on the #3 cylinder 
> specifically.) 
> 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>