rich201283
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| posted on 24/2/10 at 07:47 AM |
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Standard zetec exhaust manifold?
I am installing a 2.0 zetec with bike carbs and megajolt, I was going to fit the standard zetec exhaust manifold as it fits nicely, How restrictive is
this and how much power would i lose?
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r1_pete
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| posted on 24/2/10 at 07:54 AM |
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There were several different standard exhausts.
The tubular one which loops upwards then down isn't too bad, and its quite easy to cut the flange off leaving a short pipe and weld yout own
system on, which is what I did...
I'd forget cast ones..
 
Rescued attachment myexhaust.jpg
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UncleFista
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| posted on 24/2/10 at 01:32 PM |
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We're using a cast one, but don't have anything to compare it against.
I can tell you it's bleedin' heavy though (and cheap!) 
Tony Bond / UncleFista
Love is like a snowmobile, speeding across the frozen tundra.
Which suddenly flips, pinning you underneath.
At night the ice-weasels come...
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coozer
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| posted on 24/2/10 at 02:47 PM |
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I've got one of
THESE! on my spare engine, I intend to weld a turbo flange onto it when I have time and money to build aturbo
engine
1972 V8 Jago
1980 Z750
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cliftyhanger
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| posted on 24/2/10 at 05:17 PM |
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This is a subject I am very interested in. I have an ST170 manifold, but I keep looking at it and really don't think it will fit in my zetec
spitfire
I suspect the tubular std focus one (as on ebay) may be quite good. After all, Ford is not a budget company, and their research dept has a fair old
budget. saying that, is there any power difference between the modeo with the cast manifold and the focus with the tubular, or was there no crossover
(or even do they use a different manifold when on the engine dyno??)
I half expect the focus to be as good as many aftermarket ones, and I doubt anybody has dyno figures comparing manifolds on the same engine.......of
course I have no hard evidence either, but I am cynical about many claims of power gains.
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