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PostPosted: Wed Apr 25, 2012 9:57 pm 
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Hi guys and girls,
I'm thinking of heating wrapping my magnex cat back system. Good idea? I read bits and bobs saying all sorts, tips and advise would be cool thanks. A few of my mates have done with out problems. Is Like to do it. So thoughts?
Thanks

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PostPosted: Wed Apr 25, 2012 10:00 pm 
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You wrapping it from the head?

If not, then bascially its a complete waste of money tbh

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PostPosted: Wed Apr 25, 2012 11:13 pm 
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Na, only got a standard manifold. Got the de cat heat wrapped. Waste of time, might do it for looks? Lol

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PostPosted: Thu Apr 26, 2012 10:21 am 
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You wont see it so there is no point.

The idea of wrapping the manifold is to keep the heat in, so engine bay temps are kept down, and it makes the gasses move faster. Downside is the heat goes into the head and can cause warpage and things. Plus if its a crappy made manifold, it will crack. Best option is to get it ceramic coated.

Wrapping it after the manifold like at the de-cat and all the way back is just pointless.

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PostPosted: Thu Apr 26, 2012 10:43 am 
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As said above... only ever seen wrapped manifolds to stop the heat soak in the engine bay.... Only other time i have seen is on tailpipe on Cossies to help stop it from melting the bumper but IMO is looks Shit....

Just my 2ps'

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PostPosted: Thu Apr 26, 2012 1:09 pm 
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I have about 50ft of heat wrap here, but that is for my downpipe and the front of the exhaust, along with a turbo blanket, purely for heat purposes. I don't think I will be wrapping my tubular manifold as A. it looks shit hot and B. it looks shit hot.

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PostPosted: Thu Apr 26, 2012 4:03 pm 
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I might just do it, I know it won't do anything, but will look cool I think.:)

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PostPosted: Thu Apr 26, 2012 4:25 pm 
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Fiesta_si_boy wrote:
I might just do it, I know it won't do anything, but will look cool I think.:)


Who would see it tho....? Sure would just get wet and hold water then steam alot when exhaust is hot... :?

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PostPosted: Thu Apr 26, 2012 4:41 pm 
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Iv been thinking about heatwrapping my manifold, tried to do some researching whether it makes a difference on my car with standard airbox but can't find much.
Is that heat going into the engine issue happen in many cases or should mine be ok?

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PostPosted: Thu Apr 26, 2012 5:38 pm 
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TIL13R wrote:
Fiesta_si_boy wrote:
I might just do it, I know it won't do anything, but will look cool I think.:)


Who would see it tho....? Sure would just get wet and hold water then steam alot when exhaust is hot... :?


Yep thats all that will happen. Also it will loosen up when its wet.

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Iv been thinking about heatwrapping my manifold, tried to do some researching whether it makes a difference on my car with standard airbox but can't find much.
Is that heat going into the engine issue happen in many cases or should mine be ok?


Might make a small difference, might not though. I think having a cat effects it slightly.

Heat will always go back into the engine as it has no where else to go - apart from down the manifold. If you was to get a laser thermometer on a head before and after wrapping, you will see an increased temperature for sure. And just remember, its only made out of aluminium so can easily warp if it gets too hot.

Personally, the way I see it is unless you have a car which is quite high performance theres not much point unless 1) you want it for looks or 2) the engine bay gets so hot that you want to reduce some of the engine bay temps.

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PostPosted: Thu Apr 26, 2012 7:07 pm 
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http://www.centuryperformance.com/exhau ... g-138.html

Should be of use to some of you.

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PostPosted: Thu Apr 26, 2012 7:26 pm 
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Great link Ry...

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PostPosted: Fri Apr 27, 2012 11:07 am 
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It makes sense to wrap the downpipe next to the starter as it is pretty close, especially if you have the longer version

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PostPosted: Fri Apr 27, 2012 11:15 am 
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my manifold on my xr3i was wrapped but only as it was cooking starter motor :lol:

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PostPosted: Fri Apr 27, 2012 11:29 am 
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Ry wrote:
http://www.centuryperformance.com/exhaust-header-heat-wraps-do-not-use-spg-138.html

Should be of use to some of you.

After reading that I'm binning that idea.
Maybe another idea would be to heat wrap a cold air feed or the filter airbox, would be worth measuring the temprature before and after. Or it could just be a stupid idea lol

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PostPosted: Fri Apr 27, 2012 11:52 am 
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Wouldn't really be worth doing that with the air box tbh. Standard airbox's are designed to suck in cooler air directly into the engine so there would hardly be any difference.

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PostPosted: Fri Apr 27, 2012 12:03 pm 
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Just done a small amount of research and it won't be much help but in situations where your car is idling like waiting for a 1/4mile or dyno run wrapping your air box and MAF to give a correct reading will benefit.

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PostPosted: Fri Apr 27, 2012 1:17 pm 
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Turn your engine off. Simple.

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PostPosted: Fri Apr 27, 2012 1:25 pm 
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Sometimes its nice to get engine up to temple.

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PostPosted: Fri Apr 27, 2012 4:39 pm 
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Anyone who runs a quater mile without having a decent engine temp before hand is just an idiot.

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