Mattb
Member
Registered: 2nd Feb 03
Location: Under your sisters bed
User status: Offline
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Couple of questions...
I have heard rumors that wrapping mild steel manifolds is not advisable.... any truth in that, does it really matter??
Generally what size is better to use, 1" or 2" ?
How much length do people guesstimate i may need for a 4-2-1 fannymold?
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Pete_vxl
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Registered: 24th Nov 06
Location: Lochgelly, Fife
User status: Offline
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ive heard its sometimes not good because it does something to the flow of exhasut gases :S maybe someone can expand on that.
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mattk
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Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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its not advisable on mild steel cause the heat wrap contains the heat and leads the manifold to crck, how much truth there is in that I dont know
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Ellis
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Registered: 11th Sep 07
Location: Aberdeenshire
User status: Offline
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Stainless isn't all that much stronger than an average grade of mild steel so I can't see much truth in that, unless it has less resistance to thermal fatigue or something?!
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ianofbhills
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Registered: 10th Feb 01
Location: newcastle
User status: Offline
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My understanding is the exhaust wrapping is not to be used on cast manifolds as the increase in heat can lead to cracking.
Mild steel and stainless steel perfectly ok to use exhaust wrap on however the wrap can hold moisture against the manifold leading to corrosion on the mild steel.
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scottmmw
Member
Registered: 9th Aug 05
Location: Brotton, Cleveland
User status: Offline
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ive got sportex 4-2-1 its fine with heatwrap.
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