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How hot is the engine bay?

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Old Feb 12, 2007 | 09:16 AM
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Default How hot is the engine bay?

Do any of you know how hot an engine bay can get? Particularly around the intake? What temperature? I put some dynamat (rated at 350F, 175C) on the pop charger's heat shield to improve its purpose. It works by the way. But i'm afraid the dynamat might not be rated high enough to withstand the engine bay temps. Can anyone advise? I live in Texas where it's HOT!

Thanks,
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Old Feb 12, 2007 | 10:45 AM
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It should be fine there since your far from the manifolds and when your driving theres constant air flow in that spot.
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Old Feb 12, 2007 | 11:48 AM
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I doubt it will hurt anything, although I doubt it would help either.
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Old Feb 12, 2007 | 11:54 AM
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Kind of on the topic of heat, and kinda not directly on this topic. Bu I will ask anyway, has anyone ever louvered there hood. It was real big way back in the day with hot rods and was just wondering is anyone has ever seen a z with hood louvers.

Cheers

Kevin
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Old Feb 12, 2007 | 01:19 PM
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Originally Posted by Shift_Z33
I doubt it will hurt anything, although I doubt it would help either.
Wouldn't this help to prevent power loss due to heat though? I'm sure that that chamber where the intake is will be cooler now.
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Old Feb 12, 2007 | 03:18 PM
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air moves in and out too fast to make a difference, plus the heatshield isn't air tight
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Old Feb 12, 2007 | 03:22 PM
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well I believe my teacher told me last year that the inside of the engine operates at 4000F, which is why the cooling system/firewall/heatshield is there.
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Old Feb 12, 2007 | 03:30 PM
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Originally Posted by KuraiShimo
well I believe my teacher told me last year that the inside of the engine operates at 4000F, which is why the cooling system/firewall/heatshield is there.

You're teacher was wrong...aluminum melts at about 1200F
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Old Feb 12, 2007 | 04:22 PM
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Somebody is smarter.
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Old Feb 12, 2007 | 05:59 PM
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^Mm-Momma said...
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Old Feb 12, 2007 | 06:01 PM
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You're wrong Colonel Sanders
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Old Feb 12, 2007 | 06:48 PM
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oh maybe it was 400...haha whatever.
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Old Feb 13, 2007 | 06:26 AM
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Radio Shack has inexpensive outside [15-20'] wired digital temp gauges, great to mount sensor underhood or in air path to see the horrible performance of most cone filters even with INSULATION...........especially compared to oem system.

All that counts is inside plenum temperature.

The MAF assembly has an IAT sensor that can be read from OBD2 scanner/data monitor.

For every 11F temp rise the density and power output drops by 1%.

Consider in summer that the rad raises temp by 20-30F and AC condenser by the same amount........not unusal to see 160F air flowing into a cone.
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Old Feb 13, 2007 | 03:03 PM
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well, I checked the dynamat. and it melted. I took it off. I don't recommend anyone try what I did. Go with thermotec stuff
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Old Feb 14, 2007 | 01:25 PM
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Your car gets the hottest when it's idling.

When you're driving around, the engine bay is only slightly hotter than ambient temperature.

Get a meat thermometer ($5, grocery store) and zip-tie it somewhere inside your engine bay. Then let it idle for like 10 minutes, and check the temp.
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Old Feb 14, 2007 | 03:49 PM
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My bay is unnaturally hot.. you can roast an aged, new york prime rip or ribeye... I've been keeping my eyes on the gauges..
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Old Feb 14, 2007 | 04:59 PM
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fast cars and steak ftw
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Old Feb 21, 2007 | 04:05 AM
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My engine gets so hot that i have to open the hood after i drive it. And when i come back into the garage after 1/2 hr. it's like an oven. (could possibly be the blower) but i know it gets HOT.
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Old Feb 21, 2007 | 05:57 AM
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How does dynamat improve the purpose of the heatshield? Does it keep it cool or something? I thought it was just sound-deadening material.
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Old Feb 21, 2007 | 07:10 AM
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Originally Posted by Jun
How does dynamat improve the purpose of the heatshield? Does it keep it cool or something? I thought it was just sound-deadening material.

I think it is being used to close off the gaps in the back. That makes sense anyway.
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