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Old 03-20-2006, 01:28 PM   #1
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Default Crossover Header Wrap

Anyone wrap their crossover pipe?
I have read that the wrap holds in heat destroying your headers but does this apply to the crossover?
How much wrap does it take to complete from joint to joint?
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Old 03-20-2006, 01:37 PM   #2
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Interesting question... I don't have an answer that is specific to the crossover, but MyLittleBlackBird just showed me an interesting article in one of his Ford performance magazines in reference to heat wrap. The author suggested a three step process of ceramic coating, then header wrap, then another coating of ceramic over the wrap. I'm not sure if you're interested in spending that kind of money for heat insulation, but it sounded like a neat idea to me. Maybe you can check it out. I'll see if he can weigh in here and point you toward the magazine he was reading.
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Old 03-20-2006, 01:53 PM   #3
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Old 03-20-2006, 03:35 PM   #4
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This article confirms what many of us has said; the wrap is not efficient in doing its job. On the street is even worst; they tested the crossover at the track. When you have wrap on the headers or pipes on a daily driver; the wrap will induce heat soak not only on the exhaust but also the engine compartment. Without any surface airflow, due to the fact the exhaust is wrapped, guess were the exhaust heat is transfered to? Back to the engine!! Jsut like putting on a heavy coat on you during summer; you can stand still or run, however your body stays hot.
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Old 03-20-2006, 03:38 PM   #5
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I apologize if I sound like a noob here, but wouldn't a good solution be to put some sort of seperated heat shield between the engine/transmission and the crossover ala the same way you wrap and isolate your intake from the rest of the engine bay.

If wrapping the pipe causes heat soak to stay in the engine, and destruction to your exhaust removal, just isolate the heat?
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Old 03-20-2006, 03:40 PM   #6
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ssei1995-

What do you think about the three layer theory I was discussing in my first post?
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Old 03-20-2006, 03:45 PM   #7
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Just use the ceramic coating. You can buy it and spray yourself too. If you do, make sure you prep the surface inside and outside very well. Like glass beading and then wash well with acetone.
Summit sells the coating; I have used this particular brand for many years.
http://store.summitracing.com/defaul....asp&x=33&y=10

Also, a coated heat shield will also work.
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Old 03-20-2006, 03:54 PM   #8
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I have Tog headers and they are ceramic coated. This would be the section under the tb that I was thinking of wrapping.
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Old 03-20-2006, 03:58 PM   #9
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Read the article and take a look at the readings with the FLIR gun. If it was my car, I would buy the Techline coating and apply it to the crossover.
By the way, you can also buy from Techline too. http://www.techlinecoatings.com/index.htm
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Old 03-20-2006, 04:51 PM   #10
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In addition to the stock sheilding on mine (which headers don't have) I have TWO additional heatshields. One protects my trans temp sender, and the other protects the TB, in addition to directing the arflow UNDER it to vacate the heat and prevent it from rising to the intake.

One shield is custom, the other is a modified S2 shield.
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