Steel hoods with heat extractors?
03-06-2007, 11:04 AM
#1
Steel hoods with heat extractors?
Anyone make a good stock-looking steel hood with functional heat extractors? Need something to get the turbo heat out from the engine bay. I don't want fiberglass or composite, and I don't want a scoop on the front. A little bit of a cowl shape would be ok, but nothing drastic. What's out there?
03-06-2007, 03:44 PM
#5
Don't mean to sound stupid but what exactly do you mean by heat extractor? 
Are you just looking for a functional type of hood with openings on the underside that go to the outside?
I have a reflexxion cowl hood and it has an opening on the underside of it that will vent the hot air through the cowl. I would recommend it to you for what you are looking for.
Are you just looking for a functional type of hood with openings on the underside that go to the outside? I have a reflexxion cowl hood and it has an opening on the underside of it that will vent the hot air through the cowl. I would recommend it to you for what you are looking for.
03-06-2007, 03:52 PM
#6
Yeah I was thinking actual openings through the hood, but I read another thread where some cowl hoods are for induction and some are for heat extraction, so it sounds like just a normal cowl hood designed for extraction rather than induction would be the way to go.
03-06-2007, 04:37 PM
#7
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I think cowl hoods were originally designed as an air intake system. To take advantage of the low pressure area at the base of the windshield . The only time you would see any heat extraction would at a stop or really slow speed. Some louvers of some type would probably be more affective . 
Ron
Ron
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03-06-2007, 09:14 PM
#8
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I have the Reflexions steel cowl on my truck and it is functional. But it is for intake air coming in and not really designed to be for heat extracting. But none the less it is still a geat looking hood.. lol
Bill
Bill
03-06-2007, 10:48 PM
#9
Originally Posted by RERICK
I think cowl hoods were originally designed as an air intake system. To take advantage of the low pressure area at the base of the windshield . The only time you would see any heat extraction would at a stop or really slow speed. Some louvers of some type would probably be more affective .
Ron
Ron
I believe GM even advertised the cowl hood with that exact same wording to describe how it worked. There is one thing different though. There is not an air cleaner sealed to the underside of the hood at the opening. Without the opening being blocked, the hot air should vent throught the cowl while stopped or at a slow speed (like you said). At speed, air will enter through the front of the truck and push out wherever it can. There should be no reason why the cowl would not help vent the hot pressurized air from underneath the hood. I know the cowl hood was not originally designed to be used in this particular manner but it should do the trick. 
03-06-2007, 10:56 PM
#10
Originally Posted by TurboJohn6
You are 110% right Ron. I believe GM even advertised the cowl hood with that exact same wording to describe how it worked. There is one thing different though. There is not an air cleaner sealed to the underside of the hood at the opening. Without the opening being blocked, the hot air should vent throught the cowl while stopped or at a slow speed (like you said). At speed, air will enter through the front of the truck and push out wherever it can. There should be no reason why the cowl would not help vent the hot pressurized air from underneath the hood. I know the cowl hood was not originally designed to be used in this particular manner but it should do the trick.
I believe GM even advertised the cowl hood with that exact same wording to describe how it worked. There is one thing different though. There is not an air cleaner sealed to the underside of the hood at the opening. Without the opening being blocked, the hot air should vent throught the cowl while stopped or at a slow speed (like you said). At speed, air will enter through the front of the truck and push out wherever it can. There should be no reason why the cowl would not help vent the hot pressurized air from underneath the hood. I know the cowl hood was not originally designed to be used in this particular manner but it should do the trick.