Quote:
Originally Posted by R4ND0M_AX3
thanks for the tech scott.
Here's the thread I mentioned
The guy says that condensation isn't an issue because the stuff doesn't sit in the can. What are your thoughts? |
A true air-oil separator will make sure not to have any significant pressure drops so that the water vapor in the gases doesn't condense. If the Crawford piece is a true air oil separator, then condensation won't be an issue, and all the water vapor in the gases will go through the intake and out the exhaust pipe.
However, I get the feeling that the Crawford "air-oil separator" is really just a swirly catch can with a drain. Blowing how water vapor from a small tube into an open can will allow the gases pressure to drop and therefore condense the water vapor into water, which drains back into the motor with the oil.
There's a reason true air-oil separators for aircraft with 400hp+ motors cost twice as much as the Crawford piece. They're a lot more complicated than just a can w/ a drain. However if someone would like to buy one of those things, and cut it open to prove to me it's not just a baffled can, I'd be willing to change my mind.
Also, I wouldn't remove the PCV setup on a street driven car... It's there for a reason, to actively draw crank-case gases out of the block when you're not under boost. This is normally the primary means for keeping the crank-case clean. Under boost there's less vacuum to draw the block clean, you end up relying on blow-by pressure which is made up of the gases you're trying to remove! Without the PCV you'll never really ventilate the crank-case with clean air which leads to sludge buildup and nasty oil. Again, no big deal on a race car since the oil gets changed frequently, but on a street car, no thanks.