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How Hot do headers get?

Old Jul 10, 2007 | 10:08 AM
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Default How Hot do headers get?

Do headers right off the heads reach over 1200 degrees?? Sorry I just dont know what the heat rang is
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Old Jul 10, 2007 | 10:42 AM
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I dunno either, touch them after the cars been running for a while and tell us
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Old Jul 10, 2007 | 11:44 AM
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go out and buy a laser thermometer. then tell us
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Old Jul 10, 2007 | 11:53 AM
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Ya I had one, maybe I still do..
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Old Jul 10, 2007 | 12:00 PM
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The temp is gona be different depending on where you measure. Hottest being right out of the exhaust port. It also depends when you measure it (warm at idle, or right after a track pass)
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Old Jul 10, 2007 | 12:42 PM
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i can actually touch the tubes not long after the car cuts off...not the flange area but tubes...the collectors actually get hot as hell though
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Old Jul 10, 2007 | 01:52 PM
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Hot enough to make you say, "Ow."
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Old Jul 10, 2007 | 06:03 PM
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Originally Posted by lastcall190
Hot enough to make you say, "Ow."
even "Ow-ee ".
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Old Jul 10, 2007 | 06:10 PM
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I have a laser thermometer, ill let you know what temps i got tommrow.

I just burnt the **** out of my hand a few days agoa nd it left a nasty burn so im sure its aboce 500.
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Old Jul 10, 2007 | 06:12 PM
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Originally Posted by FireSilverLullaby
I have a laser thermometer, ill let you know what temps i got tommrow.

I just burnt the **** out of my hand a few days agoa nd it left a nasty burn so im sure its aboce 500.
that would be great..[too bad about your hand]
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Old Jul 11, 2007 | 05:53 PM
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haha yeah it should leave a cool scar.

Well today i drove about 20min, but and went up to about 3.5k rpm a couple of times. The hottest spot was 308 degrees right off the head, the collector was around 230 to 250. I think it really depends on how long you drive and how many rpm you go to. In the next week ill drive for an hour than do some Wide open throttle runs and check the temps.


also the my slp intake was 125 degrees and the intake manifold was 150. let me know if you want me to take the temps of something else.
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Old Jul 11, 2007 | 06:12 PM
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Originally Posted by FireSilverLullaby
haha yeah it should leave a cool scar.

Well today i drove about 20min, but and went up to about 3.5k rpm a couple of times. The hottest spot was 308 degrees right off the head, the collector was around 230 to 250. I think it really depends on how long you drive and how many rpm you go to. In the next week ill drive for an hour than do some Wide open throttle runs and check the temps.


also the my slp intake was 125 degrees and the intake manifold was 150. let me know if you want me to take the temps of something else.
thats a little lower temp than I thought...but then again..if it was 4-500 degrees..it would melt most things..[including your hand]
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Old Jul 11, 2007 | 10:42 PM
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Can you take the temp reading under radiator (where FTRA or SSRA sucks air). I know it gets hot over there I never really knew how hot compare to the engine bay area.
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Old Jul 12, 2007 | 01:08 AM
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Originally Posted by FireSilverLullaby
I have a laser thermometer, ill let you know what temps i got tommrow.

I just burnt the **** out of my hand a few days agoa nd it left a nasty burn so im sure its aboce 500.

If someone reminds me I will gun mine after I get off the interstate this Friday. My bet is 800 degrees F.

My FWD car is 600 something on the heatshield with a cast manifold.
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Old Jul 12, 2007 | 01:23 AM
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I tried to measure it with my IR temp gun and it read Err so it was over 650*F. My guess is 800+ easily even more if you are royally hard on the car because I've seen many a header glow red hot.
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Old Jul 12, 2007 | 02:21 PM
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Yeah I probley didnt give mine time to heat enough. im just a little low on gas now so i dont want to drive alot.
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Old Jul 12, 2007 | 02:48 PM
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The hottest tube we have at idle is the #8 and it hits 305 deg. I imagine at WOT things get a bit warmer, but I have no realistic way to measure that.
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Old Jul 13, 2007 | 12:23 AM
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Originally Posted by FireSilverLullaby
Well today i drove about 20min, but and went up to about 3.5k rpm a couple of times. The hottest spot was 308 degrees right off the head, the collector was around 230 to 250. I think it really depends on how long you drive and how many rpm you go to. In the next week ill drive for an hour than do some Wide open throttle runs and check the temps.
I see you have stainless; I wonder what kind of difference coated headers would make....?
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Old Jul 13, 2007 | 12:45 AM
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Some factory engines can make manifolds glow at WOT
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Old Jul 13, 2007 | 12:49 AM
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I know the F1 cars will literally glow red and gold they get so damn hot. i imagine the headers on our cars get pretty damn hot as well. im gonna bet up to 1200* after some high rpm driving
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