Removed your hood insulation???
09-07-2007, 12:00 PM
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Removed your hood insulation??? I know a few people have mentioned something about it, but couldn't find any specific information.
Who has removed the insulation from the underside of their hood? Once you pull those clips off, are they replaceable? Why is the insulation there anyway? Could it be to protect the hood from getting too hot and screwing up the paint?
Who has removed the insulation from the underside of their hood? Once you pull those clips off, are they replaceable? Why is the insulation there anyway? Could it be to protect the hood from getting too hot and screwing up the paint?
09-07-2007, 12:15 PM
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Originally Posted by Corny40
Why is the insulation there anyway? Could it be to protect the hood from getting too hot and screwing up the paint?
Has anyone had theirs removed for a while?? any negative after-affects??
The one thing I DID do was, I removed the black rubber seal from the back of the engine compartment - at the base of the windshield/back of the hood. Took that off to allow any heat out from under the back of the hood there.
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09-07-2007, 12:16 PM
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Originally Posted by 06MonteSS
The one thing I DID do was, I removed the black rubber seal from the back of the engine compartment - at the base of the windshield/back of the hood. Took that off to allow any heat out from under the back of the hood there.
09-07-2007, 12:26 PM
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yeah... it just has a slit in it and slips over the metal edging.... pull up on one side of it to start taking it off, you'll see what I mean... piece of cake...
it's that long black weather stripping that the back of the hood seals down on when you close it.... goes all the way across... just pulls right off...
had mine out for MONTHS now... have had no reason to replace it though...
it's that long black weather stripping that the back of the hood seals down on when you close it.... goes all the way across... just pulls right off...
had mine out for MONTHS now... have had no reason to replace it though...
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09-07-2007, 12:55 PM
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Theoretically the air would flow in the front of the bay and that provides a good place for it to flow out, but I wonder how it affects the air pressure under hood. If the extractors create too much low pressure a majority of the air will be drawn towards them rather than exiting normally. This could perhaps create a issue with turbulence or lack of cooling air in other parts of the engine.
09-07-2007, 01:05 PM
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The hood insulation is also a fire retardant.
Its designed to fall from the hood and put out minor fires. The old school hoods had plastic pins that would melt and allow the insulation to fall. We do need some heat extractors the fender vents do jack squat!
Its designed to fall from the hood and put out minor fires. The old school hoods had plastic pins that would melt and allow the insulation to fall. We do need some heat extractors the fender vents do jack squat!
09-07-2007, 01:08 PM
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Originally Posted by DavidGXP
The hood insulation is also a fire retardant.
Its designed to fall from the hood and put out minor fires. The old school hoods had plastic pins that would melt and allow the insulation to fall.
Its designed to fall from the hood and put out minor fires. The old school hoods had plastic pins that would melt and allow the insulation to fall.
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09-07-2007, 03:48 PM
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I've had mine off on my 04 Comp G for the last 4 years and off the 06 GXP for the last year and 1/2. No ill side effects at all. I also take off the rubber seal on the back side of the engine compartment like 06MonteSS and zero problems there. I figure anything I can do to help remove heat from the engine compartment is good.
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09-07-2007, 06:30 PM
#12
Originally Posted by Corny40
They say they're functional.
09-09-2007, 12:58 PM
#14
Originally Posted by Sint3k
Ram air produces about 1 PSI of boost at about 60mph +. Even at 150MHP you wont get much over 1 PSI
Anyways, point is, that just because they're called heat extractors doesn't mean they actually work. It'd be nice to see some temp tests done to see how effective they actually are. Either way, it's a mean looking hood!
09-09-2007, 01:03 PM
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Originally Posted by hexxLS4
Dunno I've read it's useless before 150mph from multiple sources including the maker of the MPD hoods. It's possible that maybe the ram air on cars like the trans am might do what you claim. The MPD hoods are probably not as effective.
Go measure a 1 inch box, then find something that weighs a pound. And put it on top of the inch. Thats how much pressure you are getting. Almost nothing. Now remember, when you increase to 2 psi, the area of 1 inch stays the same, but the pressure doubles. So 5 psi is exponentially greater than 1 psi.
Basically, telling people you have Ram Air is like telling people you have the corvette engine, it sounds cool, but it means nothing among performance guys.
09-09-2007, 08:27 PM
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I have had my insulation off the hood of my Grand Prix for years the only reason why its
there is for sound deadening no ill effect on the paint inside or out
there is for sound deadening no ill effect on the paint inside or out
09-09-2007, 10:38 PM
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Originally Posted by Nacho SS
Basically, telling people you have Ram Air is like telling people you have the corvette engine, it sounds cool, but it means nothing among performance guys.
The best ever was the Caravan SS ...
09-10-2007, 05:43 PM
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Originally Posted by Nacho SS
Think about the gains from 1 psi...they equal nothing.
Go measure a 1 inch box, then find something that weighs a pound. And put it on top of the inch. Thats how much pressure you are getting. Almost nothing. Now remember, when you increase to 2 psi, the area of 1 inch stays the same, but the pressure doubles. So 5 psi is exponentially greater than 1 psi.
Basically, telling people you have Ram Air is like telling people you have the corvette engine, it sounds cool, but it means nothing among performance guys.
Go measure a 1 inch box, then find something that weighs a pound. And put it on top of the inch. Thats how much pressure you are getting. Almost nothing. Now remember, when you increase to 2 psi, the area of 1 inch stays the same, but the pressure doubles. So 5 psi is exponentially greater than 1 psi.
Basically, telling people you have Ram Air is like telling people you have the corvette engine, it sounds cool, but it means nothing among performance guys.