| Re: [GMCnet] Cooling Shroud Mod [message #237425 is a reply to message #237411] |
Sat, 25 January 2014 09:48   |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma:
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Senior Member |
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My "guess" is more like air is getting under the coach going down the road and creating a slight positive pressure in the engine compartment. Hence the flaps will stay closed. We need a full size wind tunnel with a front roller dyno and a smoke gennerator and video system. Anyone want to book that? Short of that, the hard fibreglas chin spoiler under the core support from Jim K made a huge difference at road speed on my coach preventing temp rise creep. I don't have the fender boat vents as to me they just don't flow enough CFM to warrent the chop job, though they might help a bit with hot soak at shut off. I know ftom experience the GM 76 C3 (a bottom feeder with no 'grill' ) would creep in temp on the highway on a hot day til the clutch fan came on for a 30 second cool down every few minuites over and over. Clearly a starved natural air flow situation. So we share more than just Corvette FRP!
John Lebetski
Woodstock, IL
77 Eleganza II
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