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Old 03-27-2005, 08:44 PM   #1
txl146
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Default Heat wrapping exhaust...

I am going to heat wrap downpipe shortly and wonder if it is a good idea to also heatwrap downpipe, and catback section (excluding catted section).

I hear that most people just wrap turbo and downpipe, but haven't heard of people wrapping midpipe and catback sections.
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Old 03-27-2005, 08:51 PM   #2
Killian Maynard
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My reccomendation would be to have them ceramic coated instead. With heat wrapping you run into 2 problems. 1) The heat is not retained in the piping it is retained at the surface where the heat wrap meets the outer edge of the piping. That actually will cause more heat on the surface than you want. 2) Heat wrapping will lead to premature breakdown of the pipe surface. Once the heat wrap gets wet the moisture is trapped there untill it evaporates over time or with heat. That layer of moisture on the surface will cause oxidation/wear/etc.

So ceramic coat your pipes instead, it works a whole hell of alot better and will help the pipes last alot longer.
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Old 03-27-2005, 09:57 PM   #3
shiftnmadkwik
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yeah. with stainless its not as bad as with mild or aluminized steel, but killian makes a good point. jethot is suprisingly resonable.
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Old 03-28-2005, 07:36 AM   #4
ride5000
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ceramic coating does NOT work better than a good exhaust wrap folks.

i dare you to put your hand on your coated exhaust manifold after a run. i can do it with my wrapped one.
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Old 03-28-2005, 09:20 AM   #5
wcbjr
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Just watch out for oil getting on the wrapped pipes. I believe someone on this board had an engine fire due to that.
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Old 03-28-2005, 09:32 AM   #6
Rickyh
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go for da wrap. It makes a huge difference in temps.
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Old 03-28-2005, 09:56 AM   #7
JIM THEO
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Quote:
Originally Posted by ride5000
ceramic coating does NOT work better than a good exhaust wrap folks.

i dare you to put your hand on your coated exhaust manifold after a run. i can do it with my wrapped one.
Agree, I did wrap the full exhaust turbo to backbox + up-pipe and soon I am going to heat wrap with thermo-tec my turbo.
Huge difference in engine bay-I/C temps and helps slightly in faster spool-up.
JIM
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Old 03-28-2005, 11:47 AM   #8
bofh
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Quote:
Originally Posted by ride5000
ceramic coating does NOT work better than a good exhaust wrap folks.

i dare you to put your hand on your coated exhaust manifold after a run. i can do it with my wrapped one.

Been there. Still do that. Remember that all coatings are not created equal. With a good coating inside and out, you can hold onto it right after a run. However, you will not be able to after a long drive. Big difference.

As to the wrap, it will cause additional corrosion. On SS pipes as well. (Google for crevice corrosion) Doing both will help a bunch, as the ceramic will help protect against corrosion.
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