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  1. exhaust wrapping 
    #1
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    dan123ben's Car Details
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    exhaust/ manifold wrapping has anyone done it? is it worth doing ment to help scavenging?
     
     

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    #2
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    Quote Originally Posted by dan123ben View Post
    exhaust/ manifold wrapping has anyone done it? is it worth doing ment to help scavenging?
    Manifolds like the 328i I don't see why not but do it properly (potential hazard). I guess in theory it keeps the pipes at a higher temp which is all good.
    Cheap ebay manifolds, NOOO! Even more chance of cracking.

    Hope that helps.
     
     

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    i take is the hotter gas moves faster hence gas out and more air being pulled in ?
     
     

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    Quote Originally Posted by dan123ben View Post
    i take is the hotter gas moves faster hence gas out and more air being pulled in ?
    Bingo!

    You aswell do something crazy (Engine conversion/Turbo/Supercharger)
    rather than spending more and more on minor mods.

    Seems like your clutching at straws matey!
     
     

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    i have done as much as i can afford on the car really its making round 235 bhp now started a 194 think it was mite give the wrapping ago next week will keep you updated to see
     
     

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    Quote Originally Posted by dan123ben View Post
    i have done as much as i can afford on the car really its making round 235 bhp now started a 194 think it was mite give the wrapping ago next week will keep you updated to see
    Thats not bad I guess!

    Shrick cams?
     
     

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    thought it kept under bonnet temps down to reduce inlet air temp
     
     

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    #8
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    standed camshafts
     
     

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    #9
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    Quote Originally Posted by dazza316i View Post
    thought it kept under bonnet temps down to reduce inlet air temp
    ^^

    And that also.
     
     

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    Usually cracks the manifolds...as Jack has said there are better mods than wrapping them
     
     

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