FYI FORD MustangSteve's Ford Mustang Forum / Wagner PCV installed

**Posted by RTM** 5/17/2025 10:32 AM

I bought this thing a long time ago when I first started the build. I finally got it adjusted and installed.

**Posted by MS** 5/17/2025 11:10 AM

What spec do you adjust it to?

**Posted by RTM** 5/17/2025 11:16 AM

The idle circuit is set to one full turn open for my vacuum at idle. This Varys based on the vacuum at idle and their instructions guide you based on that reading. The cruise circuit is then set with a vacuum gauge hooked to it. It's set 3/4 CCW from finding 0 vacuum reading on the gauge. You first turn it CW until you get vacuum then CCW to zero then 3/4 turn more.

**Posted by MS** 5/17/2025 12:17 PM

Ok
It has instructions and specific settings. Not trial and error.
Any difference in the way it runs?

**Posted by RTM** 5/17/2025 1:32 PM

MS wrote:
Ok
It has instructions and specific settings. Not trial and error.
Any difference in the way it runs?

Haven't had enough time to drive with either PCV installed. I haven't even been over 3,000 rpm yet.

**Posted by BILLY WALTON from GEORGIA** 5/23/2025 12:10 PM

Interesting

**Posted by BILLY WALTON from GEORGIA** 6/02/2025 1:18 PM

RTM wrote:
MS wrote:
Ok
It has instructions and specific settings. Not trial and error.
Any difference in the way it runs?

Haven't had enough time to drive with either PCV installed. I haven't even been over 3,000 rpm yet.

what are the benefits?

**Posted by RTM** 6/02/2025 2:53 PM

BILLY WALTON from GEORGIA wrote:
RTM wrote:
MS wrote:
Ok
It has instructions and specific settings. Not trial and error.
Any difference in the way it runs?

Haven't had enough time to drive with either PCV installed. I haven't even been over 3,000 rpm yet.
what are the benefits?

Suppose to cut down oil consumption and related issues with PCV's. It's been a long time since I read the benefits of it but it was all good and had a lot of positive reviews on VMF, where I first learned of it. Not they I ever had an issue with a PCV, I also never tried to match the correct on to my engine.

There's settings if your vacuum is super low or super high. I was kind of in the middle range, closer to the lower settings.

**Posted by Mochaman** 6/12/2025 4:44 PM

Mine is still collection dust on my workbench. Saving the oil right now on the wooden top of the bench.

**Posted by Bullet Bob** 6/12/2025 7:03 PM

Mochaman wrote:
Mine is still collection dust on my workbench. Saving the oil right now on the wooden top of the bench.

Ya think it might cure the "auto shut-down" feature on the Heap? Might have to try it...if I can find it.

**Posted by BobE** 6/13/2025 6:25 AM

I noticed no real difference when I installed the Wagner PCV valve. My vacuum was about 16-17 inches both prior to and after installing the Wagner. I had a Holley 600 CFM carb at that time, and did not have an oil consumption problem.

**Posted by RTM** 6/13/2025 6:24 PM

BobE wrote:
I noticed no real difference when I installed the Wagner PCV valve. My vacuum was about 16-17 inches both prior to and after installing the Wagner. I had a Holley 600 CFM carb at that time, and did not have an oil consumption problem.

I'm not saying you'll have oil consumption, was just trying to remember what were some of the benefits. Maybe what I should have said was I don't know much about PCV setups and or how to pick the right one. This seemed to simplify things and insure it was working like it should. After all I went all out on everything else so why not this as well.

I should add I've never had an issue with anything I've ever built and just slapping in what ever PCV I had lying around. I like what I read about the Wagner and figured why not try it. At least I know it's setup the best way I could set it up, well according to Wagner I have. Lol

**Posted by 6sally6** 6/13/2025 7:18 PM

Do y'all remember ol' Rich (Red Boss 351)that was a member on here for years ?! (passed several years ago )
He once posted that there ARE indeed different PVCs for SBF engines. One size doesn't fit all(well...it will butt it shouldn't)
A PCV valve for a stocker 2-barrel 289 has a much different vacuum signature than a Boss 302 (for instance) ! Yet the PCV will interchange with both.
I think a PCV for a boss 302 or HiPo 289 would be a better fit for a cammed-up/high(er) performance engine than just the first one Oh-Oh-Oh Rielly hands ya !
The kicker is.............Rich did the research and listed the PCV (part #) for the Hi-Po 289 . Therefore...I forgot it !!
Prolly a little research of numbers would indicate the best PCV for your engine vs the high zoot Wagner nobodys tried...
6sally6

**Posted by BILLY WALTON from GEORGIA** 6/15/2025 10:07 PM

6sally6 wrote:
Do y'all remember ol' Rich (Red Boss 351)that was a member on here for years ?! (passed several years ago )
He once posted that there ARE indeed different PVCs for SBF engines. One size doesn't fit all(well...it will butt it shouldn't)
A PCV valve for a stocker 2-barrel 289 has a much different vacuum signature than a Boss 302 (for instance) ! Yet the PCV will interchange with both.
I think a PCV for a boss 302 or HiPo 289 would be a better fit for a cammed-up/high(er) performance engine than just the first one Oh-Oh-Oh Rielly hands ya !
The kicker is.............Rich did the research and listed the PCV (part #) for the Hi-Po 289 . Therefore...I forgot it !!
Prolly a little research of numbers would indicate the best PCV for your engine vs the high zoot Wagner nobodys tried...
6sally6

be interesting to get that part numer.

**Posted by RTM** 6/16/2025 9:42 AM

6sally6 wrote:
Do y'all remember ol' Rich (Red Boss 351)that was a member on here for years ?! (passed several years ago )
He once posted that there ARE indeed different PVCs for SBF engines. One size doesn't fit all(well...it will butt it shouldn't)
A PCV valve for a stocker 2-barrel 289 has a much different vacuum signature than a Boss 302 (for instance) ! Yet the PCV will interchange with both.
I think a PCV for a boss 302 or HiPo 289 would be a better fit for a cammed-up/high(er) performance engine than just the first one Oh-Oh-Oh Rielly hands ya !
The kicker is.............Rich did the research and listed the PCV (part #) for the Hi-Po 289 . Therefore...I forgot it !!
Prolly a little research of numbers would indicate the best PCV for your engine vs the high zoot Wagner nobodys tried...
6sally6

I like my fancy PCV. Lol

**Posted by goldwing** 6/28/2025 7:03 PM

my 200 six in the 65 needs overhaul. i have some oil weep out of oil stick and pan gasket. i was almost in the process of putting on a blow by tube to help with getting my blowby down a little. saw you talking about the wagner. i one nstall this week . i have 105 miles of 55mph highway driving. so far i do not have any weep i the dip stick. going to try drying on interstate to see result.
bill

**Posted by MS** 6/30/2025 5:30 PM

I have been using 1972 Impala 350 ci pcv.
Not sure if good or bad, but it has the 90 degree fitting that I like.

**Posted by RTM** 7/02/2025 9:21 AM

goldwing wrote:
my 200 six in the 65 needs overhaul. i have some oil weep out of oil stick and pan gasket. i was almost in the process of putting on a blow by tube to help with getting my blowby down a little. saw you talking about the wagner. i one nstall this week . i have 105 miles of 55mph highway driving. so far i do not have any weep i the dip stick. going to try drying on interstate to see result.
bill

Good to see some real world feedback

**Posted by RCodePaul** 7/07/2025 5:05 PM

MS wrote:
I have been using 1972 Impala 350 ci pcv.
Not sure if good or bad, but it has the 90 degree fitting that I like.

RA shows this one for the 72 Impala hipo 350. All the '72 Impala listings show a straight fitting. The 80 Camaro 350 (the HEI module I use) shows a 90* fitting on RA

https://www.rockauto.com/en/moreinfo.php?pk=6153375&cc=1048935&pt=5052&jsn=738&optionchoice=0-0-0-1&_nck=jb38c6P4Fi7hmekskywY2TnlrR33C643MLXM10K4R32RVRkhXOYSTb5TUZJR4y4KOMxuYTREAtY1f6Y7%2FUMkGj0voxFX%2BVjIHzE%2BY5O1ThlOYJ5CyyPm9XCQqmePFT9x4xfdEDEqlXP%2BSnllgRnno%2BPf8vUvuwvY5TczfHb%2FIKIeHS7PvArJ5ksyhk91fqFEW3ObdAu%2BjIdJnF5BYQQrjZcDdu0zl3kjbhRF%2F3v5xnht8DGpG1aNpugIz3rpkCoSd%2FEbbGLdDgHHtAzvFpZeJ5a2jV9N48sGWtYTklY%2F7TTlwsMzdm40sUgIvAjyATmw2jUQqMiE1BJqeCmDnzx1STxLD1eeoqobDPc5qXYtx2Y%3D

https://www.rockauto.com/en/moreinfo.php?pk=5798823&cc=1035290&pt=5052&jsn=10

**Posted by BobE** 7/08/2025 8:09 AM

The PCV I originally installed prior to installing the Wager PCV was a Fram FV329, a 90-degree type. This PCV was listed for a 1996-1998 V-6 Ford (for various cars). I picked it for being 90-degree version. I have no idea of the specs associated with it, but I didn’t notice any real difference between it and the Wagner PCV.

**Posted by John Ha** 7/08/2025 9:22 AM

I'm using one for the 4.3 GM V6 in my stock 250 I6. I really needed something with the right angle fitting on it to make sure it fit under the hood, and since the displacement is about the same, why not? Seems to work well.

**Posted by Muzz 66** 7/10/2025 7:37 AM

1992 5.0 Fox body coupe. 309K miles on her. A Moroso oil catch can in place. With the stock PCV valve it collected some oil, but not a lot. After the Wagner PCV install and tuning I’m guessing 5X more crank case vapors get collected. Sorry, I have no written stats, but the difference was quite noticeable. The PCV setup from that era located the valve at the back of the intake manifold, easier felt than seen. Under the PCV valve is a small cylindrical crankcase breather element which looks like it was designed as a mini catch can to condense droplets and have them drip back down into the engine. Clever.
Anyway, I take all that stuff off at smog check time even though the California smog rule book says catch cans are good to go, I take no chances with a smog tech saying “Uhh, dat not legal. You tamper with. Fail.” Imagine having to explain a Wagner adjustable PCV valve to someone unfamiliar with the concept and having your registration on the line.

Last edited by Muzz 66 (7/10/2025 7:53 AM)