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Old Apr 24, 2009 | 01:56 PM
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is there any diference in wrapping the whole exhaust at the moment i,am doing the headers and downpipe am using dei wap and then spraying it with a heat coat any info will be greatly appreciated
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Old Apr 24, 2009 | 02:52 PM
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No sure what you mean?

manifold up and down pipe is all thats require as far is im aware. The idea being to stop heat getting into the engine bay...?
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Old Apr 24, 2009 | 04:12 PM
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the idea of heatwrap is to keep the exhaust warm just as the heat shield would do but not having it wrapped can cause you to lose power ie the hot engine bay idea plays a role aswell but thanx but not the answer i was looking for

Last edited by scoobzie; Apr 24, 2009 at 04:16 PM.
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Old Apr 24, 2009 | 04:20 PM
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The heat wrap (or ceramic coating) has a dual function, it keeps the engine area cool and keeps the exhaust gases hot. In theory if the gasses cool they contract and slow down.....less efficient at spinning the turbo LOL.

I would expect that any cooling after the downpipe would make not a lot of difference in the real world and is away from the engine bay.

HTH

Shaun
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Old Apr 24, 2009 | 04:26 PM
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ok thanx then a turbo blanket it is aswell
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Old Apr 24, 2009 | 04:39 PM
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I wonder if Ninnybobs has still got his old turbo blanket.... try giving him a PM

Shaun
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Old Apr 24, 2009 | 05:01 PM
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Don't forget the down pipe/turbo is right next to the intercooler, which wants to be as cold as possible!
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