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Feb 18, 2008 13:24:58 GMT
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I'm going to replace the tubular exhaust manifold on my Mk1 Cortina GT. 105E Speed are doing a 4 into 1 manifold, and the standard GT is 4 into 2 into 1. I'm sure I read somewhere that 4 into 1 gives you more top end power and 4 into 2 into 1 is better for low end torque - anyone know, and is it really noticable. Anyways here are some manifold related pics:      (105Speed's manifold) Cheers ;D |
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Last Edit: Feb 18, 2008 16:33:39 GMT by cortinaman
Old Fords never die they just go sideways
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Feb 18, 2008 16:34:30 GMT
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Someone must know surely ;D
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Old Fords never die they just go sideways
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Seth
South East
MorrisOxford TriumphMirald HillmanMinx BorgwardIsabellaCombi
Posts: 15,516
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Feb 18, 2008 16:45:45 GMT
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Think I've heard the same as you. Most street systems tend to be 4-2-1. Great pics!    |
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Follow your dreams or you might as well be a vegetable. |
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Feb 18, 2008 18:42:39 GMT
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4 into one will definatly enhance the top end power but a lot of it will have to do with what else is going on with the engine. If you take a stock manifold of a standard engine and replace it with a 4 into one, or even a 4-2-1 you wont really notice much difference. The more higher state of tune your engine is in the more the effect of the manifold will be noticable. Hope this makes sense  |
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Feb 18, 2008 18:57:56 GMT
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well my mate has just put a full stanless system on his angle box witch has a 1.5 pre cross flow engine with a 4 into 1 and his car made 94 hp
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