Have I missed something? The PCV vents back into the intake to make emissions. In Honda-Land, the Endyn (thus, the proper) solution is to epoxy in a few more 19mm necks on the valve cover and vent all of them to a catch can (or two in some cases). The can has provisions for a PCV valve on it to run back into the intake to meet emmissions regs, and a filter for normal (off road only :)) running.

Can:
http://theoldone.com/components/breather/

In use (56k remember: its up the road, not across the street):
http://theoldone.com/articles/Larrys...rrys_Civic.htm

No. Though a proper solution would depend on the emissions laws. I could run my filter port back to the intake with pcv valve inline and have the same solution as you've described, but I'm currently running a filter (for off road only :)).

That can is setup just like mine- two input ports from the cam cover, one drain and a filter port (or intake return with inline pvc valve).

Right. So whats all this talk about 'scavenging those gasses' and what not? I piss directly upon anything that escapes my engine and doesn't need to pass through my turbine housing. Catching it all in a can and dumping it in my recyleable oil barrel once a week sounds just peachy to me. If Alabama ever catches up to the rest of the world on emissions testing, I'll see about a different solution then :D. I can't see any reason at all to use a pcv valve for anything other than the trip to the test anyway... Unless I'm missing something, like I said before.

Scavenging was referring to management of cc emissions (gases) outside of boost. The point being that the majority of time "these" boosted cars are driven, they are not in boost. And if you are not running a pcv setup as stock or similar, you have removed the emissions system that evacuates those cc emissions and sends them back into the intake for combustion under vacuum.

Copied FTW

Except I used some leftover intercooler pipes and JBweld a top and bottom to it.

I added two plastic fittings with clear vinyl hose so i can see oil level.

sweet :bigtu: ^

Post that on HMT, they will love you for it.

As much as endyn has some good articles, I'm 110% with Rob on that. Endyns solution does NOT meet my or OEM requirements at keeping oil clean out of boost. this requires drawing clean air IN to the crank case from the world and dirty air OUT of the crank case into the engine during low load/vacuum conditions where it does NOT negatively affect the engines performance in any discernible way.

Fred.

So the proper solution is? Drawing through the crank case with engine vacuum?

Keep the OE pcv valve running between to the manifold and cam cover for emission gas evacuation under vacuum and run the catch can vent back to the intake pre turbo, post filter so those gases vented under boost are returned to the combustion process.

I'd skip the last part of that for a high power application as when you are in boost you don't really want your fuel diluted with oil vapour as it does lower the octane. I personally intend to feed mine into the exhaust stream (post cat if you have one) through a venturi arrangement and check valve. This can create a vacuum under all conditions. As a bonus it might help burn the vapours in the exhaust stream too. That wouldn't be emissions legal, but I'm not concerned with that where I am.

Having said that, the volume of gas being ingested by the engine should make the blowby effectively negligible, but if I don't have to feed it in and line the intercooler with oil, I won't.

Fred.

With a decent catch can, you should be ok.

I didn't find any of the exhaust-venturi things to work well.... At least not on our deisel

Yep - that last part is about the only thing to do that would even remotely be considered emissions legal since it's just following the OE layout. But I agree- sending that nasty mix through a turbo intake path isn't appealing.

3" ex on a little motor is probably worst case for them anyway with the low gas velocity. Still can't hurt even if it's just dumping in there :-)

http://www.maperformance.com/store/p...at=1771&page=1

A lot of locals are running these with good results.

Still think that's pricey (nothing like the krankvents) for a couple of heavy duty pcv valves (or check valves). My guess is there is an industrial check valve that will work. Pressure/vacuum specs probably isn't an issue- but heat will be. Anybody venture to guess a temp on the crankcase vapor?

100C +/- 20C :-) probably around the temperature of the oil though I would say, wouldn't you?

All I can say is on the two cars I've seen it on, it seemed air was blowing out as often as blowing in, when in the garage. Maybe under power it would be a different story.

240-260 degrees if you're on the track w/o an oil cooler. I need an oil cooler

That should never be the case given that check valves are used. Something must have been wrong. I've read too many good positive reports of strong vacuum in the crank case with them. They can't all be wrong can they? My mate is doing a holset+m20 bmw setup and has a kit so we'll see what he has to say, he's going to measure the kpa in the crank case with it and report back :-)

Fred.