07-12-2006, 11:43 AM
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CC Member
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Join Date: Feb 2002
Location: Gilroy,
CA
Cobra Make, Engine: West Coast Cobra w/ Centrifugally Blown Big Block, Pickles, Onions, on a Sesame Seed Bun.
Posts: 493
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PCV + Breathers
So if you're running a PCV with an open crankcase, how did you tune around the vacuum leak?
With a PCV, the air path would the through the breathers, through the crankcase, through the PCV, and into the carb...which is a vacuum leak. That air would not flow past the carb venturis and fuel wouldn't be metered for it...which should cause a lean condition most noticable at idle and light throttle.
Did you just richen idle fuel to compensate? Any weird off-idle stumble problems?
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