| [GMCnet] Under Bumper Air Scoop [message #104121] |
Mon, 25 October 2010 11:08  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
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Since I mentioned adding an Under Bumper Air Scoop for the AL radiator, I
decided I'd better post some photos:
http://www.gmcmhphotos.com/photos/showgallery.php?cat=5632
<http://www.gmcmhphotos.com/photos/showgallery.php?cat=5632>It's a very
simple project: A 12" x 48" piece of 12 g. AL diamond plate bent to match
the curve of the bottom of the radiator surround and bolted to that frame.
The leading 1" of the scoop was folded back 180* using a big electrically
powered sheet metal brake, but that could have been done without much
difficulty (though not quite as neatly) by clamping the AL with a beam to
the edge of a workbench and progressively bending it with a wide hammer.
All the other cuts and bends were done with hand tools and clamps.
It's my belief that the scoop will force more air through the bottom
section, and perhaps all, of the radiator since the air cannot easily divert
to the sides and bottom. But I have no "before" data to compare with
"after". The new AL radiator will just gain the benefit on top of whatever
improvement it inherently affords.
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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