Why do headers glow when on an engine dyno?
Because they are held at max. load for a period of time. If you could load a WHP dyno for full load for 30 sec. at peak BHP your headers would turn red (1350 F) also.
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i had the same thing happen to my header.. was bcos of fuel was too lean during tuning. but i have a question, would the properties of the header changes after that? i mean,will the header be less durable?i dont know how to really explain this.
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From: driving a wolf in sheeps skin in, NY
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BOOSTEd2 »</TD></TR><TR><TD CLASS="quote">thats one crazy *** header design</TD></TR></TABLE>
yah it's OEM too, bmw m3 v8 motor
yah it's OEM too, bmw m3 v8 motor
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From: driving a wolf in sheeps skin in, NY
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BOOSTEd2 »</TD></TR><TR><TD CLASS="quote">m3 v8'??? post more specs pls and maybe a link</TD></TR></TABLE>
https://honda-tech.com/zerothread?id=1930956
https://honda-tech.com/zerothread?id=1930956
Most of the shots you would see of glowing headers are during full throttle durability testing that OEM's do. They put the drivetrain on the dyno and run them at full throttle for days at a time. They also dim the lights in many cases, which shows it off alot more. If you watch endurance racing, during the night portions, the entire exhaust systems are glowing red, including the tips.
It just so happens that these particular headers are extremely thin wall, and thus are much more likely to reach a temperature where they will glow.
It just so happens that these particular headers are extremely thin wall, and thus are much more likely to reach a temperature where they will glow.
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