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-   -   Adjustable PCV Valve (https://classracer.com/classforum/showthread.php?t=72115)

Al Wilson 01-30-2019 06:28 PM
Adjustable PCV Valve
 
Are they legal in Stock? Has anyone tried one? This is for an AMC 304 engine, originally equipped with a PCV valve.


http://mewagner.com/

Mark Yacavone 01-30-2019 08:54 PM
Re: Adjustable PCV Valve
 
Quote:
Originally Posted by Al Wilson (Post 581301)
Are they legal in Stock?
If they post contingency , they will be.

John Dinkel 01-30-2019 10:26 PM
Re: Adjustable PCV Valve
 
Why not.

Ed Wright 01-31-2019 01:26 PM
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.

Ed McLawhorn Jr. 01-31-2019 02:31 PM
Re: Adjustable PCV Valve
 
Quote:
Originally Posted by Ed Wright (Post 581364)
I played with those when I still had my flow bench. Mid '70s 454" trucks had the highest flowing I found at that time.
Ed check your pm s.

Hacksaw 01-31-2019 04:17 PM
Re: Adjustable PCV Valve
 
Quote:
Originally Posted by Ed Wright (Post 581364)
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.
OK, we are talking a drag race engine here so why would you want to let crankcase pressure fumes enter the intake side and taint the fresh fuel charge?

Jeff Stout 01-31-2019 05:44 PM
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.

Ralph A Powell 01-31-2019 05:56 PM
Re: Adjustable PCV Valve
 
Don Hardy told me a couple of years ago the Ford 460 was the highest flowing pcv he had found.

Quote:
Originally Posted by Ed Wright (Post 581364)
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.

Bench Racer 01-31-2019 06:01 PM
Re: Adjustable PCV Valve
 
Quote:
Originally Posted by Jeff Stout (Post 581379)
I always thought it was a way to build crankcase vacuum. The bonus is the nitro in the oil going into intake charge.
Is this better than the sterno on the top of the radiator?

Dragsinger 01-31-2019 07:53 PM
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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