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inner header tubes getting hot?

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Old Mar 22, 2011 | 03:02 PM
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Default inner header tubes getting hot?

I have a fresh motor with new headers on it. Pacesetter brand. They are painted black and I put extra paint on them. Fired the motor for the first time and all was well after about a minuet the paint started smoking off. Probably normal. After a few more starts all seemed fine then one time it started again so I got my inferred thermometer and the two inner header tubes climb quickly to around 400-500 degrees? Is this normal seems too hot to me. My other car has SLP headers on them and they do not get that hot? Any one help here?
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Old Mar 22, 2011 | 06:32 PM
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you cant compare the 2 unless you are using same headers. slp headers might tolerate heat more than black pacesetters. and i dont think 400 is a lot. i have heard many stories with black painted headers.
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Old Mar 22, 2011 | 08:12 PM
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you cant compare the 2 unless you are using same headers
Understood maybe they have different wall size on the tubing? Thanks
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Old Mar 23, 2011 | 08:00 PM
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my ceramic flowtechs while idling only run about 230-240 some run a little hotter than others
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