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Joined: May 2001
Posts: 620
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Originally posted by madmole:
Dont bother with the MAF or larger throttle bodies. Its the resonator above the TB and the rest of the plumbing that is killing your airflow Is it worthwhile replacing the resonator & plenum with a smooth pipe, even if you still have the original airbox? (I really don't want to give up cold fender air.) Terry or someone was saying that the manifold itself is the worst spot on the Zetec intake. What's your take on that?
96 GL Zetec ATX, white with pinstripe, nickname " Sam Smooth " mods so far: CTA intake with homemade heat shield, KVR drilled front rotors & carbon pads w/ 500° fluid planned mods: exhaust (want to keep it quiet), e-ram (awaiting installation), diablo chip involuntary mods: compression increased after head gasket failure
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Joined: Jun 2000
Posts: 2,246
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the CTA intake seems promising
David Litsky AIM: DaveL225 My Car
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Joined: Apr 2001
Posts: 304
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You actually want a long smooth tube. the longer length gives the air time to settle and stabilise into a more laminar flow.
I agree also that you want a cold as possible air going into that tube.
The Manifold uner the TB is absolutely crap, but as nobody yet does a replacement we are stuck with it.
Best answer is 4 direct throttle body injectors (like the Weber Alpha kit)that does away with the whole lot but its very expensive
Mad Mole Visit Mad Moles Mondeo Madness 2L Zetec, Cams, Stage 2 head, Valve work, Powerflow, Unichip, AEM Ram, K&N, Ecotek, 75mm Lower etc. 192 BHP, Faster than a speeding Duratec!
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Joined: May 2001
Posts: 620
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Originally posted by madmole:
You actually want a long smooth tube. the longer length gives the air time to settle and stabilise into a more laminar flow. Would such de-turbulencizing be all for naught once the air hits the bad quadruple-saxophone manifold, or would such a thing really gain you some horsepower? I'm thinking of just getting a smooth right-angle bend and straight section of plastic sewer pipe of a suitable diameter. (Plastic so it doesn't conduct heat.) Then, maybe, the e-Ram in the wheelwell...
96 GL Zetec ATX, white with pinstripe, nickname " Sam Smooth " mods so far: CTA intake with homemade heat shield, KVR drilled front rotors & carbon pads w/ 500° fluid planned mods: exhaust (want to keep it quiet), e-ram (awaiting installation), diablo chip involuntary mods: compression increased after head gasket failure
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Joined: May 2001
Posts: 620
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Joined: May 2001
Posts: 620 |
Originally posted by madmole:
The Manifold uner the TB is absolutely crap, but as nobody yet does a replacement we are stuck with it. Does the Focus use the same one?
96 GL Zetec ATX, white with pinstripe, nickname " Sam Smooth " mods so far: CTA intake with homemade heat shield, KVR drilled front rotors & carbon pads w/ 500° fluid planned mods: exhaust (want to keep it quiet), e-ram (awaiting installation), diablo chip involuntary mods: compression increased after head gasket failure
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Joined: Aug 2000
Posts: 1,268
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There is a replacement for the manifold. Its just too damned expensive. I saw a hi-po intake manifold in the Ford Preformance catalog that goes for $500 IIRC.  Its listed for the Focus and ZX2, but Im sure it would fit. Anyone wanna lend me $500?? 
-Ken V. psycho_bass@hotmail.com My Car
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