[blacksapphire440i]

I was looking on which kit would be better to solve the PCV system from failing and if one needs an oil catch can or not. I was leaning towards the VS breather kit but I do not know if you need an oil catch can or not

[Chris@VargasTurboTech]

Putting a catch can kit on is never a bad idea. It's clean, out of the way and uses our super popular modular can.

That's in bed with, but different than venting excess pressure, which is what the one way crankcase breather does.

[vektorprime]

Originally Posted by Chris@VargasTurboTech

Putting a catch can kit on is never a bad idea. It's clean, out of the way and uses our super popular modular can.

That's in bed with, but different than venting excess pressure, which is what the one way crankcase breather does.

Few questions:

1. Do you guys have any dyno runs with the breather?
2. I assume some particles still make it past the filter, wouldn't that get inside the engine bay?
3. How often does this filter need to be replaced or washed?
4. Wouldn't one just get this or a catch can, instead of both? Or is the benefit additive because this breather reduces the pressure, while the catch can grabs all the oil?

[blacksapphire440i]

Originally Posted by Chris@VargasTurboTech

Putting a catch can kit on is never a bad idea. It's clean, out of the way and uses our super popular modular can.

That's in bed with, but different than venting excess pressure, which is what the one way crankcase breather does.

Does the Vargas one way breather kit just vent out oil fumes? I was told it vents out oil fumes so you'd be smelling oil and having the potential to have oil spill out if it isn't installed correctly.

[Chris@VargasTurboTech]

Originally Posted by vektorprime

Few questions:

1. Do you guys have any dyno runs with the breather?
2. I assume some particles still make it past the filter, wouldn't that get inside the engine bay?
3. How often does this filter need to be replaced or washed?
4. Wouldn't one just get this or a catch can, instead of both? Or is the benefit additive because this breather reduces the pressure, while the catch can grabs all the oil?

A catch can is an air/oil separator. This is different than a breather. A catch can pulls oil out of the PCV vapor. A breather just allows more venting of crankcase pressure.

Most of the dyno's we've done on any platform we work on have been done with breathers. Don't expect any power change by itself.

You can wash the filter as often as you like, but it's not something you need to do regularly. Luckily removal and reinstallation take a couple of seconds if this is something you are interested in doing.

[540iSUP]

I have the breather on my 540i and have had it for about 6 months now. I've never had issues with combustion smell in the cabin, around the car, or oil residue on the underside of my hood or on the engine cover. I've only cleaned it 1 time so far and it was barely dirty.


Off topic:
I wish I could get the OCC, but VTT doesn't make a bracket for the G30 540i. I know there's quite the market for it for the 540 as well. Chris, can you guys get this done? All we need is a bracket, everything else will fit.

[kern417]

Ross Racing Performance solution can come with a catch can.

https://www.rossrperformance.com/pro...lete-version-1

[Chris@VargasTurboTech]

What is up with these companies getting rid of proper PCV operation, removing crankcase vacuum, coupling the high and low side systems which should always be separated into one, and calling it an upgrade? That kit is nothing but a VTA modification. Modern turbocharged vehicles NEED crankcase vacuum under varying circumstances to function correctly. If you want to add a CC to the low side it's a great idea, same with the high side. Taking the low side, and coupling with the high side while getting rid of crankcase vacuum at idle, cruise, and decel is not an upgrade...

[kern417]

Originally Posted by Chris@VargasTurboTech

What is up with these companies getting rid of proper PCV operation, removing crankcase vacuum, coupling the high and low side systems which should always be separated into one, and calling it an upgrade? That kit is nothing but a VTA modification. Modern turbocharged vehicles NEED crankcase vacuum under varying circumstances to function correctly. If you want to add a CC to the low side it's a great idea, same with the high side. Taking the low side, and coupling with the high side while getting rid of crankcase vacuum at idle, cruise, and decel is not an upgrade...

Works well for everyone that's using it.