Adjustable PCV - dual flow

[Johnny]

January 2016 issue of "Muscle Machines" magazine (#149) has an article on the PVC starting on page 64.
Its good!
It also has something someone here might want. The M/E Wagner adjustable PCV. It is also rebuildable so you would never need to buy a new one again.

www.mewagner.com

Its a little spendy but might be good for fine tuning the system to work.

http://mewagner.com/wp-content/uploa...ay-3-views.jpg

[GLHS60]

No disrespect intended Johnny, but I just got my issue in the mail and nothing in that article is good info pertaining to a performance 2.2/2., 8 valve Turbo Mopar.

I encourage people to consider ditching the entire PCV system as there are no upsides to running one on our engines.

They do show a nice illustration of a V8 engine showing a ventilation system in action but it's nothing like our engines.

Thanks
Randy

[88C/S]

Just ordered one. Have a new 2.5 with an aggressive cam, so most likely less vacuum at idle than what the pcv was designed for. Do to the size turbo I'm running, have put together a cold air induction and home made catch can per instructions from a post. Found that setup worked well on my other engine to reduce back pressure in the block. Don't smell oil after running under boost, nor see it all over the engine.

[crazychris]

No disrespect intended Johnny, but I just got my issue in the mail and nothing in that article is good info pertaining to a performance 2.2/2., 8 valve Turbo Mopar.

I encourage people to consider ditching the entire PCV system as there are no upsides to running one on our engines.

They do show a nice illustration of a V8 engine showing a ventilation system in action but it's nothing like our engines.

Thanks
Randy

so what do you do with your cars Randy? just hook a hose up and run it to a catch can or something?

[Dr. Johny Dodge]

ther problem with our pcv set up is that everything runs down hill from the pcv so any oil in the plumbing ends up in the vent / breather in the air box instead of running back down the hose to sneek past the pcv when it opens again

putting the crankcase vent filter way down below in the air filter box was just plain stupid .. but it met the legal requirement that the breather be inclosed in the air filter body - like a v8 , but not like a v8

[GLHS60]

Hey Chris, I run an open hose directly vented to the atmosphere, 2 hoses from a TBI valve cover when possible, running downhill. In my experience any restriction can act like a venturi and this encourages oil to be drawn along with any exiting crank case pressure. Our 2.2/2.8, 8 valve Turbo engines are unique so this is not something I do to all engines. My experience is, if the vent hose is totally unrestricted, I don't get a dripping hose.

Crank case pressure can not be contained, its like the ocean tide. However how much an individual engine produces varies, and as time goes on, most engines produce more and more, and boosted engines even more. This pressure can be directed, like the ocean, and that's the issue, to direct it away from the engine air intake, or not. Or not means some kind of PCV to allow the engine to ingest some oily vapors exiting the crank case, and any vapors exiting the crank case are octane reducing, never octane enhancing.

I consider eliminating the PVC to be an engine saving safety precaution. Obviously eliminating the PCV means allowing the crankcase to breathe, not cap off the valve cover nipple as suggested elsewhere.

Merry Christmas!!

Thanks
Randy

[ajakeski]

So where does the 2.2 draw fresh air into the crankcase from?
Or is the PCV just pulling oil vapor out of the vacuum lines?

[tryingbe]

So where does the 2.2 draw fresh air into the crankcase from?
Or is the PCV just pulling oil vapor out of the vacuum lines?

Turbo valve cover? no where. There is only 1 port.

TBI valve cover? There is two ports. You can make one for fresh air take.

[Dr. Johny Dodge]

the small filter found in the air cleaner box IS the crank case vent / breather
conjoined with the pcv and mounted below the opening in the valve cover IS the base for the reason the pcv / breather system in our car sucks

[GLHS60]

So where does the 2.2 draw fresh air into the crankcase from?
Or is the PCV just pulling oil vapor out of the vacuum lines?

You're one of the few to notice this !!

Most crank cases have a fresh air intake.

Ours just encourage all octane reducing vapors in the direction of the engine air intake, pure oil/moisture vapor, not even diluted with fresh air.

Eventually filling the air box, intercooler, etc. with liquid oil that doesn't make it directly into the engine air intake.

Thanks
Randy

[supercrackerbox]

ther problem with our pcv set up is that everything runs down hill from the pcv so any oil in the plumbing ends up in the vent / breather in the air box instead of running back down the hose to sneek past the pcv when it opens again

putting the crankcase vent filter way down below in the air filter box was just plain stupid .. but it met the legal requirement that the breather be inclosed in the air filter body - like a v8 , but not like a v8

Theoretically, that is where you should be using a catch can.

[puppet]

So where does the 2.2 draw fresh air into the crankcase from?

On most boosted engines plenty of "air" comes in past the rings. Focus shifts to getting it out. No need to provide an additional path for "air in" IMO.

[Dr. Johny Dodge]

Theoretically, that is where you should be using a catch can.

LOL
theoretically .. if the venting system was designed properly you wouldn't need the catch can - but I'd have to agree , the catch can isn't a bad idea though I've never used one - I just cleaned the mess out regularly

[GLHS60]

On most boosted engines plenty of "air" comes in past the rings. Focus shifts to getting it out. No need to provide an additional path for "air in" IMO.

So if I understand you correctly:

No need for any fresh air to dilute crankcase vapors, keep them pure, as in, as octane reducing as possible??

Plenty of "air" blows by the rings, no need to introduce any fresh air that could help dilute crank case vapor?

As the engine ages, removing intercooler, etc., oil would fall under scheduled maintenance !!

Thanks
Randy

Thanks
Randy

[puppet]

Are we talking about the same thing? ... I don't think so. I don't advocate a PCV setup.

[GLHS60]

And to remind anyone who might be listening, I'm talking about 2.2/2.5, 8 valve Turbo engines specifically in relation to ditching the PCV !!

With most engines, a PCV system is highly beneficial, our engines, no.

Thanks
Randy

[Johnny]

You NEED something to take the pressure out of the engine!!

[supercrackerbox]

LOL
theoretically .. if the venting system was designed properly you wouldn't need the catch can - but I'd have to agree , the catch can isn't a bad idea though I've never used one - I just cleaned the mess out regularly

I've got that issue on my Caliber, although it doesn't have a breather filter because the previous owner swapped the stock air filter system with a K&N system. Now I've got a fair amount of oil being ingested straight into the turbo compressor. I'll likely be putting catch cans on both the breather and on the PCV systems on that car.

[GLHS60]

You NEED something to take the pressure out of the engine!!

The pressure takes its self out of the engine. That's what pressure does, provides movement.

You NEED no restriction to the pressures flow.

Thanks
Randy

[Johnny]

You NEED no restriction to the pressures flow.

Right, but that "flow" might be out the seals if not dealt with....right?