Oil water separators

[Blue By You]

I see they're available for both sides.

Is it advantageous to get both or is one side preferable?

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[Unas2k5]

For most setups, just get the passenger-side. Add driver-side later if you’re boosted or tracking the car.

 

[Blue By You]

If only getting one, is there any reason why one side over the other?

Is one side easier to access than the other?

 

[Unas2k5]

PCV valve is on the passenger side. If you get the right side, it will just be empty. You should get it if you are FI.

 

[Skye]

If only getting one, is there any reason why one side over the other?

Attached is some information about that.

Yes, Passenger side only. While you can install one on the Driver's, in a stock setup, most report gathering nothing. I have one attached to the passenger side. I draw about 15 ml every 1700 miles/2720 kms.

 

[Blue By You]

Thanks folks!

 

[CarDad29]

How does the PCV system function when your intake manifold is a blower? My car has the Roush kit. My mechanic suggested getting rid of the PCV system due to how dirty the superchargers heat exchanger was. Right now I'm venting to atmosphere with small filters on each side. Car has been this way for about 4K miles, the filter on the drivers side (car's left) is oil soaked and dirty while the passengers side (car's right) is about brand-new looking clean (both filters were red, passenger side looks brand new, drivers side is blackened and making a mess). Seems the flow path pictured above doesn't apply once the intake manifold is replaced. I've been thinking about installing a catch can on the drivers side still venting to atmosphere since I haven't been able to understand the original flow and where to dump back in; this would at least relocate where the mess is being made and hopefully be less messy with a can catching some of the vapors.

 

[LethalSteveG]

The driver side pulls air into the motor so not really needed unless you have a lot of crankcase pressure / blow-by. Or on boosted applications we can see it get some droplets. But the passenger side is the side it wants due to the PCV pushing air back into the motor. A can can stop oil, fuel, and moisture. I like the UPR Products one the most due to the braided lines and chambered filtration system. J&L is a good one too.

Let us know if we can help when you do decide!

https://www.lethalperformance.com/s...stang-gt/engine-1/oil-catch-cans-separators-1

 

[robvas]

How does the PCV system function when your intake manifold is a blower? My car has the Roush kit. My mechanic suggested getting rid of the PCV system due to how dirty the superchargers heat exchanger was. Right now I'm venting to atmosphere with small filters on each side. Car has been this way for about 4K miles, the filter on the drivers side (car's left) is oil soaked and dirty while the passengers side (car's right) is about brand-new looking clean (both filters were red, passenger side looks brand new, drivers side is blackened and making a mess). Seems the flow path pictured above doesn't apply once the intake manifold is replaced. I've been thinking about installing a catch can on the drivers side still venting to atmosphere since I haven't been able to understand the original flow and where to dump back in; this would at least relocate where the mess is being made and hopefully be less messy with a can catching some of the vapors.

I would remove the breathers, and run lines to a vented external tank. Keeps everything out of your intake but won't make a mess in your engine bay.

Something like the Motion or UPR

https://motionraceworks.com/product...kIR8QlK24F-X9Fs7np9EZKB55_r3Wuh53iVaWfvN_VPSf

https://www.uprproducts.com/11-23-mustang-gt-5-0-or-v6-billet-dual-inlet-breather-tank-plug-n-play/

 

[Schuvwj]

Oil water separator?
Never seen water in my separator, only oil.

 

[CarDad29]

I would remove the breathers, and run lines to a vented external tank. Keeps everything out of your intake but won't make a mess in your engine bay.

Something like the Motion or UPR

https://motionraceworks.com/product...kIR8QlK24F-X9Fs7np9EZKB55_r3Wuh53iVaWfvN_VPSf

https://www.uprproducts.com/11-23-mustang-gt-5-0-or-v6-billet-dual-inlet-breather-tank-plug-n-play/

Without knowing how the stock setup worked for sure, I think that's the best route for me to take. Maybe later run a line from the bottom of the can to sump so it's not a maintenance item.

Oil water separator?
Never seen water in my separator, only oil.

Your car appreciates you getting to operating temps . In your situation, you're probably letting the car run hot enough long enough to evaporate the water. If the can was in the fender well you'd probably start seeing chocolate milkshake from condensation in there.

 

[Blue By You]

Your car appreciates you getting to operating temps . In your situation, you're probably letting the car run hot enough long enough to evaporate the water. If the can was in the fender well you'd probably start seeing chocolate milkshake from condensation in there.

Ok so I have a 40 mile one way trip to work everyday. Closest town is 15-20 min away.

In fact, I can't envision a situation where the car is not only up to operational temp but also being driven for at least 15-20min at a time.

Do I really need a separator?


If it's still a good idea great, I'll do it. Just seems like I keep seeing a lot of folks talking about operational temp being an issue.

 

[robvas]

Do I really need a separator?

Do you have oil in your intake manifold?

 

[Blue By You]

Do you have oil in your intake manifold?

IDK.

I can tell you I'm not taking the manifold off to find out.

 

[CarDad29]

I wouldn't worry about it stock. My car is boosted, so vents more, and when it was all apart (blew up) the SC cooler was full of oil. I had one on my VW but it was DI only, so it caused carbon deposit build up on intake valves, your car has port injectors to clean that off if you drive it right (lay into it from time to time). "If it ain't broke...."

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