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01-31-2019, 01:26 PM
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Re: Adjustable PCV Valve
I played with those when I still had my flow bench. Mid '70s 454" trucks had the highest flowing I found at that time. Must have been ten years ago. An NHRA Tech guy made me take mine off. I still feel like that is wrong, but I try to follow their directions. My car came with one, still feel like it should have one. Gone now.
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Ed Wright 4156 SS/JA |
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01-31-2019, 02:31 PM
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Re: Adjustable PCV Valve
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01-31-2019, 04:17 PM
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Re: Adjustable PCV Valve
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01-31-2019, 05:44 PM
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Re: Adjustable PCV Valve
I always thought it was a way to build crankcase vacuum. The bonus is the nitro in the oil going into intake charge.
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01-31-2019, 06:01 PM
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Re: Adjustable PCV Valve
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01-31-2019, 07:53 PM
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Re: Adjustable PCV Valve
The tech sheets show the valve works with an idle vacuum above 7" Most of our stockers or super stockers do not have 7" vacuum idle.
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Larry Woodfin 471W |
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01-31-2019, 08:14 PM
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Re: Adjustable PCV Valve
Interesting subject, I hope more with contribute to this thread.
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02-01-2019, 11:39 AM
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Re: Adjustable PCV Valve
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Remember those NASCAR and other intakes with the drilled out mounting studs? This is a lot bigger hole. |
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02-01-2019, 12:41 PM
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#9 |
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Re: Adjustable PCV Valve
[QUOTE=Bobby DiDomenico;581432]Who says it has to work? (Or work as the emissions system was designed?;-)
Yeah, and nobody ever clipped a spring, with a restricted engine that, naturally, pulls manifold vacuum @ WOT, right?
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Ed Wright 4156 SS/JA |
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01-31-2019, 10:56 PM
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Re: Adjustable PCV Valve
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Ed Wright 4156 SS/JA |
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