VR6 Oil Catch Can?

[Jarred]

Ah right I see. I couldn't say. best of luck.

EDIT: I had a brain wave. AutoSpeed always have some good tech articles and DIY stuff. Maybe some of it will help. I just searched an picked a few supposedly relavent articles.

http://autospeed.com/cms/A_1101/article.html

http://autospeed.com/cms/A_110826/article.html

http://autospeed.com/A_110826/cms/article.html

http://autospeed.com/cms/A_1576/article.html

[The_Hawk]

Very nice set of links there

So I want not so much a catch can, but an oil/air sperator

[Oneofthegreats]

For cost effective way, it's hard to beat the powerade bottle!

The rocker cover has a mesh screen inside it to stop alot of oil splash. I've also fitted a hydraulic cam/lifter baffle for this reason too.

It only catch's any residue, or if you really beat on it, it catch's alittle overflow.

If you let the can fill up, it can get alittle fumy, but apart from the blown headgasket incident, it has never filled up past 1/4 in between 10K services.

Also, the Mk3 cabin is probably alittle more sealed than the mk1 too, so I don't think fumes would be any problem.

All car's (don't know the exact year when they were introduced for pollution requirements. think approx 74/75, as the HJ's didn't have any pollution gear in them) should have one of these fitted or a PVC valve equivelant system like the cyclone oil separator's as part of the pollution system.

http://en.wikipedia.org/wiki/PCV_valve



That explain's how they work.

In some performance application's, I've seen a vaccum pump's ran directly from the rocker cover's with a regulator in the crankcase system to create a constant vaccum, which can in some case's increase performance by upto 40hp on a 1000hp engine.

This isn't a cheap excercise either. $1000+



Another old skool tech is to use the pulse air valves off the early MK1's & plumb the rocker cover's breather's directly into the exhaust, creating the same sort of scavanging system. If your engine is in poor health, than it will get smokey!





I still see this system used on alot of car's too & work's extremely well.

On my warm 304 project, I used massive breather's & baffle plates in the rocker cover's. Never blew any oil out holding it at 6500+ for 3 min's & with the race oil I used, it alway's smelt good too!



When getting into the performance side of the crankcase system, it can get very scienctific, as does any part of the 4 stroke engine, so on that note

I'll stick to my powerade bottle's though. Haven't failed me yet!

[The_Hawk]

All car's (don't know the exact year when they were introduced for pollution requirements. think approx 74/75, as the HJ's didn't have any pollution gear in them) should have one of these fitted or a PVC valve equivelant system like the cyclone oil separator's as part of the pollution system.

Yeah, don't think I have that valve anymore since it used to leak and was removed, but I assume the catch can/seperator take the place of that valve anyway, another reason to consider doing something

[rayray086]

Some good info here, I finally understand how the PCV system works.

Just wondering if anyone have since added an oil catch can? Curious to see some setups as well as the amount of reduced oil in the intake.

[peedman]

ive been wanting to add one to my diesel just to limit the amount of oil going onto the intercooler but there isnt much room to put one. the justjap ones are pretty cheap but quality prob isnt that great. anyone put one in yet like ray said?

[rayray086]

Found this on a search: http://forums.vwvortex.com/zerothread?id=1940008

[Bug_racer]

Some good info here, I finally understand how the PCV system works.

Just wondering if anyone have since added an oil catch can? Curious to see some setups as well as the amount of reduced oil in the intake.

Im in the process of doing it

[rayray086]

For the white VR6? Awesome, would be good to know the costs involved too!

[mk3pete]

here is a link to what i did to my catchcan its similar to what the guy did from vortex
http://www.vwwatercooled.org.au/newf...880#post367880