<VV> Flow/Pressure/Cooling

[Mark Durham]

Ray, a worthwhile goal! Mark Durham

Sent from my Windows Phone
From: Ramon Rodriguez III
Sent: 5/23/2012 20:47
To: virtualvairs at corvair.org
Subject: Re: <VV> Flow/Pressure/Cooling
My experience is that cruising above $3,500 RPM or so leads to higher
engine temps than below that range.  Maybe it's just that the engine is
working harder to overcome friction etc., or maybe this is where the higher
RPM starts to hurt rather than help.

I probably don't need to defend myself, but I was saying that IF the
original design is "terrible" by modern standards as some have suggested, a
modern fan design run at a slower speed might save us some horsepower and
retain more or less the same cooling efficiency.  This sounds better than
an electric fan that doesn't cut it to me, but the price would have to be
reasonable.  I'd think this would probably mean a plastic fan, since I
suspect lightweight alloy would be expensive to manufacture, but todays
plastics are far better than those available in the 60's.

I intended only to stir up intelligent discussion from a different angle.
 I found the testimony that increasing pressure would not increase cooling
very credible and figured that pretty much killed the original topic of
"better cooling", I want the same cooling but saving a couple HP.


-- 
Ray "Grymm" Rodriguez III
Lake Ariel, PA
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