Crank case ventilation setup

[Unlogic]

Since I started upping the boost on my car (currently running a maximum of 18 psi) I've noticed that the stock crank case ventilation doesn't seem to up to the task anymore judging by the increased amount of oil leaking from my oil fill cap.

I've read the various thread on this subject over the years and there is a lot of talk of various methods for improving the stock setup.

Those of you which are running more than stock boost, which crank case ventilation setup are you running and how is it working?

Given how late I am to the 3/S tuning game I figured there must already be at least a few true and tested solutions to this problem.

The PCV valve on the front valve cover in the stock setup scares me a bit. If that valve sticks open at full boost the results cannot be good...

[DrGonzo]

I know the first step is usually move to the krank vet setup. It will hold better at higher than stock boost levels which is most likely where you are getting the pressure. If that doesn't help I would guess you have ring issues causing the pressure in which a leak-down test would be needed to confirm.

[FeaRpb]

There was just a decent discussion on krank vents in my build thread.

There was a bunch of mixed thoughts and experiences with them. But in the end, I will be running the krank vents as I intended. If curious on the details, check out the last 2 or so pages in my build thread, the discussion was pretty good.

[green-lantern]

Something to add to the discussion from the other thread.

See the large vent in the top pic? Look how small the openings are in it compared to the one in the bottom pic.......yeah I wouldn't use the one on top. Probably the one TSB had issues out of.

Unlogic, are you starting to smoke under boost? You could replace the stock vent before doing anything else.

[FeaRpb]

phew, luckily I have the ones in the second pic, tho the small crank vent doesn't have the arrow on it anymore so I will have to blow through it I guess to find it which way it flows...

[DrGonzo]

Something to add to the discussion from the other thread.

See the large vent in the top pic? Look how small the openings are in it compared to the one in the bottom pic.......yeah I wouldn't use the one on top. Probably the one TSB had issues out of.

Unlogic, are you starting to smoke under boost? You could replace the stock vent before doing anything else.

For those that can't se the second image, it's the second image on this page. Jeff's site blocks image access sometimes so some will see it others will not. Once you go to his page it should show from then on.

Stealth 316 - ET Performance Karnk Vent Turbo Kit

[Unlogic]

Unlogic, are you starting to smoke under boost? You could replace the stock vent before doing anything else.

I have not noticed any smoke just oil leaking from the oil filler cap so far.

The krank vents sold by 3SX seems to have small openings on the large valve: Krank Vents SystemÂ*-Â*Mitsubishi 3000GTÂ*/Â*Dodge Stealth Parts

I've been unable to find the krank vent kit pictured at Stealth316 but I guess this version would work if I mount the valve with the small openings on the front valve cover and the one with the big openings on the rear one: The MINI kit (or CCVS) [MINI CCVS] - $110.00 : ET-Performance & Racing Products ...the only problem is that ET performance doesn't ship to Sweden

I sent an e-mail to ET performance but I haven't heard anything from them so far.

[FeaRpb]

ET is the place to get them from. I want to say that is where matt m supplied them from back when he was selling them a lot. (maybe still does, idk) but yes, get those.

[green-lantern]

The ones pictured in there are the small ones. Try and contact matt (DR)

I have an idea I've been working on since I talked to Adam in the other thread. It won't be ready for a week or two though.

[FeaRpb]

The ones pictured in there are the small ones. Try and contact matt (DR)

I have an idea I've been working on since I talked to Adam in the other thread. It won't be ready for a week or two though.