PCV Valve vs fuel curve

Guy Parquette · May 4, 2020

Bluzilla said: ↑

Once you understand the "PCV Valve Basics" which is an easy read under the Technical heading on the www.mewagner.com website we can realize it's importance. The PCV Valve's main purpose is NOT to improve any carburetors fuel mixture in any manor. Its role is far more important than a "small vacuum leak". In case anyone doesn't have the time to go their website an do the reading, the main function of a PCV Valve is to "Remove Moisture and Harmful Acidic Vapors", PERIOD! Without some type of crankcase ventilation you end up with sludge in your oil pan, I can attest to that from past experience of which I will attach a photo I took proving it. At full throttle or near zero vacuum the PCV system has little to no effect on evacuation, and for track cars seeing mainly WOT, a vacuum pump/pan e-vac of some design over a PCV Valve is recommended. I should mention while talking to ME Wagner yesterday that we discussed the importance of incorporating an oil separator of some type into the system. Also, measuring the amount of oil collected in the oil separator canister can be a helpful tool in determining how well the PCV Baffle System is operating. In closing, does a PCV Valve produce a vacuum leak (The M/E Wagner being variable )? Of course it does, but as any experienced engine tuner can tell you, adjusting and or setting the air/fuel mixture at idle and thoughout the entire fuel curve should be done AFTER all other engine parameters and settings are established.

Larry
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Very real. That is the exact reason why I put on a catch can AND modified the PcV/ clean side on my wife's '14 DI twin turbo Explorer Sport. It is scary how much the can catches that would normally collect in the IC.

Bluzilla · Apr 4, 2015

BQUICK said: ↑

I run a standard PCV valve with an oil separator and it works just fine for a lot less dough. :grin:
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Good to hear that at least you are using some type of PCV valve. Good luck with that!:dollar:

gokitty · Dec 1, 2015

Bluzilla said: ↑

I spent a half hour on the phone today with M/E Wagner Performance discussing the technical aspects of their adjustable pcv. Very knowledgeable and helpful. Though their pcv is normally not useful on a "Race Only" vehicle which would benefit from a vacuum pump for evacuation and ring seal, their adjustable unit has everything covered up to that level. They include an alternate spring for the more aggressive cammed engines with less vacuum and also have the ability to convert from dual stage to single stage adjustments depending on vacuum level. There was no hard sell at all and by the time I had finished talking with him I ended up ordering 2 of the adjustable units along with 1 remote mount. One unit to be used on a customers build I am finishing and one that I will be using on one of my cars to evaluate. I was also impressed with "If not satisfied within 30 days, full money back guaranty". They will be getting back to me with about the possiblility of a group discount.
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There is an informative, detailed article about the Wagner adjustable pcv valve by Ray Bohacz in the January Hemmings Muscle Machines magazine.Bohaccz remarks that "...as someone who struggled with PCV tuning issues for years,I can say with confidence that it is a worthy investment for a muscle car engine,even a stock one,offering an end to ventilation-related oil leaks,dirty engines and poor driveability once and for all". It seems that there is a tangible upside.I am interested in participating in a group order. Thanks! Archie

REFORMULATED400 · Dec 4, 2015

I'm also interestsed in the group purchase.

gokitty said: ↑

There is an informative, detailed article about the Wagner adjustable pcv valve by Ray Bohacz in the January Hemmings Muscle Machines magazine.Bohaccz remarks that "...as someone who struggled with PCV tuning issues for years,I can say with confidence that it is a worthy investment for a muscle car engine,even a stock one,offering an end to ventilation-related oil leaks,dirty engines and poor driveability once and for all". It seems that there is a tangible upside.I am interested in participating in a group order. Thanks! Archie
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70 GMuscle · Mar 6, 2020

Bluzilla said: ↑

I spent a half hour on the phone today with M/E Wagner Performance discussing the technical aspects of their adjustable pcv. Very knowledgeable and helpful. Though their pcv is normally not useful on a "Race Only" vehicle which would benefit from a vacuum pump for evacuation and ring seal, their adjustable unit has everything covered up to that level. They include an alternate spring for the more aggressive cammed engines with less vacuum and also have the ability to convert from dual stage to single stage adjustments depending on vacuum level. There was no hard sell at all and by the time I had finished talking with him I ended up ordering 2 of the adjustable units along with 1 remote mount. One unit to be used on a customers build I am finishing and one that I will be using on one of my cars to evaluate. I was also impressed with "If not satisfied within 30 days, full money back guaranty". They will be getting back to me with about the possiblility of a group discount.
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I just purchased one of the pcv valves for my GS.
I look forward to this. I have spent a good amount of money lately on carburetors(disappointingly).
I look forward to see how this will help with tuning.
The site is interesting and a lot of testimony across the net on success with the Me Wagner pcv.

70 GMuscle · Mar 12, 2020

I received my new dual flow pcv today.
I look forward to experimenting with it.
I also plan to get out a qjet that gave me best performance. 1970 GS350 factory replacement and getting parts for it from cliff ruggles and see if I can get it back where it was.
Only other thing I can think of is my old points distributor converted with crane electric kit that always worked great.
I have an msd distributor/no vac advance and 6al box I also plan on removing in experimental mode so I can get back vac advance.
Hoping all turns out well and I get car better than it’s been.
Will return with my findings as time allows to tune.

LARRY70GS · May 4, 2020

Bluzilla said: ↑

I spent a half hour on the phone today with M/E Wagner Performance discussing the technical aspects of their adjustable pcv. Very knowledgeable and helpful. Though their pcv is normally not useful on a "Race Only" vehicle which would benefit from a vacuum pump for evacuation and ring seal, their adjustable unit has everything covered up to that level. They include an alternate spring for the more aggressive cammed engines with less vacuum and also have the ability to convert from dual stage to single stage adjustments depending on vacuum level. There was no hard sell at all and by the time I had finished talking with him I ended up ordering 2 of the adjustable units along with 1 remote mount. One unit to be used on a customers build I am finishing and one that I will be using on one of my cars to evaluate. I was also impressed with "If not satisfied within 30 days, full money back guaranty". They will be getting back to me with about the possiblility of a group discount.
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Larry,
Any update? What do you think about the Adjustable PCV?

70 GMuscle · May 20, 2020

The adjustable pcv does not fit our stock grommets.
Need to purchase the adaptor.

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PCV Valve vs fuel curve

Guy Parquette Platinum Level Contributor

Bluzilla a.k.a. "THE DOCTOR"

gokitty Platinum Level Contributor

REFORMULATED400 Silver Level contributor

70 GMuscle Plan B

70 GMuscle Plan B

LARRY70GS a.k.a. "THE WIZARD" Staff Member

70 GMuscle Plan B

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