UPR valve cover vent.

[Dereku]

Ok, I do not completely buy their marketing but to he honest it makes sense. Convince me to spend my money.

https://www.uprproducts.com/ford-gm-baffled-billet-one-way-valve-cover-crankcase-breather-kit-upr/

Sponsored

 

[Msfitoy]

Ok, I do not completely buy their marketing but to he honest it makes sense. Convince me to spend my money.

https://www.google.com/amp/s/www.up...e-way-valve-cover-crankcase-breather-kit-upr/

What does it mean?

 

[Dereku]

What does it mean?

Damn google...

https://www.uprproducts.com/ford-gm-baffled-billet-one-way-valve-cover-crankcase-breather-kit-upr/

 

[Msfitoy]

Damn google...

https://www.uprproducts.com/ford-gm-baffled-billet-one-way-valve-cover-crankcase-breather-kit-upr/

I'm not sure it's necessary but maybe others who know more can correct me...

 

[Dereku]

I'm not sure it's necessary but maybe others who know more can correct me...

That was my thought. But damn does their snake oil sales pitch sound good. Horse power you never knew you had. Its probably minimal at best and only good for extreme HP motors. I am all about efficiency so I might pull the trigger. Some people on the mustang forum said it made the engine feel more free.

 

[P-38Ranger]

Engine displacement, above and below the piston face is constant! The difference between inside the engine and outside is not important.

Read years ago about the WWII, aircraft engines with their tremendous boost, and all the experience showed to keep the lower crankcase sealed.

snake oil

 

[Dereku]

Engine displacement, above and below the piston face is constant! The difference between inside the engine and outside is not important.

Read years ago about the WWII, aircraft engines with their tremendous boost, and all the experience showed to keep the lower crankcase sealed.

snake oil

Figured, just had to ask. Ill chock this up with all the other nonsense.

P-38 Lightning huh? Coolest plane flown by the allies.

 

[db_tanker]

I've seen this on high boost applications simply to keep from splattering oil all over the engine bay. Boosted applications will have bypass no matter what - at least at say 20-30 psi and up and constantly - plus with high HP mods you will have a greater ring gap to keep from grenading the pistons. Therefore bypass.

I THINK the sealed crank case for the aircraft were due to their being in situations where they can roll and not have to worry about puking out their oil?

 

[oldnslow]

This does what your PCV valve does now, except it vents directly to atmosphere instead of the intake manifold. That makes it illegal, hence their warning "THIS PART DOES NOT CARRY AN CARB EO NUMBER, AND THEREFORE IS FOR RACING / OFF ROAD USE ONLY. NOT FOR SALE OR USE IN CALIFORNIA DUE TO CARB/EMISSIONS. ALL CALIFORNIA ORDERS WILL BE CANCELLED AND REFUNDED".

Not just snake oil, but illegal snake oil.

 

[Mustang2Ranger]

OP-

It only really becomes a need or thought when the truck has been modified. Is your truck tuned, with a downpipe or intercooler/pipe setup and/or do you tow a lot?

I went with the one from CFM Performance, probably about the same

You'll need to buy some wrist sweat bands from Amazon or wherever to change out and absorb the vapor

 

[Racket]

When I went to UPR to pick up my Catch Can second vacuum line the owner came out and took the oil filler cap off my truck and commented about the pressure even at idle. He said they were looking into venting it although I asked if Ford had accommodated for that in design?

He said it hurt performance. Then again he advocated for oil weights that Ford did not specify in the Ranger.

UPR is a top notch performance parts provider but I still have to think the pressure in the system isn't a problem so much.

I'm wondering specifically how this benefits owners - daily drivers vs. towing/hauling vs. off-road and those occasional drag racers.

If it extends engine life it'll definitely be worth the extra maintenance.

More power/better fuel economy? I'd like to see testing.

 

[yamahaSHO]

It is true, high pressure in the crankcase will soak up some power, however, venting it via the atmosphere is more of an 'old school' (lazy, in my opinion) way of doing it. Ideally, you want to pull a vacuum on the crankcase. A 'good' CCV/PCV setup should do this to some extent, which is why I upgraded the valves on the UPR catch can I recently purchased.

I do a lot of work in this area when it comes to helping customers plan their build before I tune it. I personally like a good air/oil separator that drains back into the oil (yes, there are arguments to be made about it). Two of my cars (STi, which is a street car, and turbo S2000, which is a track car), I run a Crawford Performance AOS and I have modified the intake on both cars to draw more vacuum from the AOS, which is pulling from the crankcase. I basically mimic the type of bung that you would see on an a crankcase evacuation, that vents to the exhaust:

This is on the intake of my STi (after switching to this, the extra draw was enough to need to scale the MAF richer):


On my S2000, you can see the AOS venting into the intake just before the turbo, with the same type of bung.

Personally, I would never run this type of vent (oil filler filter)... Not even on a race car.

 

[Dereku]

Thanks everyone. I am pretty sure I knew the answer I consider myself a very capable car guy. The PCV system is an evolution of a valve cover vent. Ever engine I have has pressure behind the oil cap, doesn't bother them.

 

[Dr3wDrop]

I have one of these. CFM crank case breather. I can tell you it spits a ton of oil and I have to change a gym sweat band on the filter every 2 months or so. Let me sneak outside and take some pictures real quick.

 

[Dr3wDrop]

Here are some pics. This white sweat band was installed on 9/4/22 following an oil change

Sponsored