Venturi vacuum pump

[FattyBoomBatty]

Here's what I think would be the best "simple" way to install this. One might even go as far as adding a catch tank between the breather and exhaust check valve so as to keep oil out of the exhaust if possible. I also don't know how well the drain tube from the catch can to oil pan would work, but my stock oil catch can does that so I think it would work.


http://www.dsmstyle.com/photopost/data/529/krank_vent_setup.JPG

[Halon]

Some of the stuff I've seen build up at the bottom of catch cans, I don't think I'd want all that stuff returning to my oil pan.

[Kracka]

Some of the stuff I've seen build up at the bottom of catch cans, I don't think I'd want all that stuff returning to my oil pan.

Agreed.

[FattyBoomBatty]

Yeah, actually I was looking at scheides' picture earlier and saw some gunk, but that's why I mentioned something about it. So, no return line.

[sleepydsm]

Here's what I think would be the best "simple" way to install this. One might even go as far as adding a catch tank between the breather and exhaust check valve so as to keep oil out of the exhaust if possible. I also don't know how well the drain tube from the catch can to oil pan would work, but my stock oil catch can does that so I think it would work.


http://www.dsmstyle.com/photopost/data/529/krank_vent_setup.JPG


Wouldn't you want a catch can in between the vent and the intake?

[sleepydsm]

Would some sort of electrical vaccum pump be practical? Seems like exhaust nipple would be the easiest, most reliable.

[Pushit2.0]

If you buy a factory pump made for this application it would be just as reliable as any other pump on the car.

~John

[FattyBoomBatty]

Wouldn't you want a catch can in between the vent and the intake?

Well, the PCV goes to the intake normally, so that's why it's going there now, and in all of the KV setups I've seen, that is how it's done. I suppose you could hook up both ports on the valve cover to the catch can and only one vacuum source, but either way, it's good to have two different source for vacuum, if possible.

Anyway, as long as there is a vacuum, both the pcv and vent will see that vacuum, doesn't really matter where you get it, as long as there's a check valve.

[Halon]

Pretty sure he meant a 2nd catch can that goes between then intake and the VC.

[FattyBoomBatty]

Pretty sure you need to take a step back, cause you're standing on my dick.

I know what he meant, why the hell would you have both the pcv AND breather/vent going to the intake, catch can or not? The idea is to have alternate sources of vacuum so the crank case is under vacuum as much of the time as possible.

I already suggested above my picture I drew that a second catch can between the vent and check valve going to the exhaust nipple wouldn't be a bad idea.