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PINGU
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PostSubject: exhaust wrapping   Thu Feb 17, 2011 5:04 am

right im just wondering on this one, ive got a split or crack on my manifold, its beeing welded up now so its fine but just wondering if exhaust heat wrap thing would stop or help this not happen again??
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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 5:41 am

afaik, heat wrapping is only to keep underbonnet temps down





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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 6:00 am

I presume whats gonna cause cracking, is quick changes in temperature from cold/hot and visa versa.




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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 6:01 am

it was there from the start!!, so wrapping wont do shit
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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 6:07 am

yeah, but you asked if it would help stop it happening again




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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 6:18 am

exhaust wrap is more likely to make manifolds crack and decay over time, they keep the heat inside the pipes so the manifold itself heats up, this can help with keeping gas velocities up, but it can also cause exhaust valve burning, along with the risk of very hot spots if the wrap isn't done perfectly.


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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 6:22 am

was going to say it will more likely mare a standard mani crck esp if its been welded up
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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 6:22 am

dan, have you got an aftermarket manifold?


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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 6:28 am

yeah s/steel 4-2-1 got that heat wrapped ,thermo tec ive got it seems a good wrap too can almost keep ur hand on it Smile
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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 6:44 am

ah k glad i asked first then lol
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matt_666
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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 9:32 am

as sith said, also i have heard that it work better on turbo d cars ???
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PostSubject: Re: exhaust wrapping   Thu Feb 17, 2011 7:26 pm

you got cast manifold or tubular fella?
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PostSubject: Re: exhaust wrapping   Fri Feb 18, 2011 4:17 am

tubular dude,, i nw ud never get it to wrap on a cast one lol
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PostSubject: Re: exhaust wrapping   Fri Jul 08, 2011 1:28 am

heat wrap is no good on high reving cars and will make it loose power so ive been told
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