didn't want to hijack another thread, so here goes. I have a s20g and have oil in my charge pipes and IC. NO smoke at start up, acceleration, or idle. no oil is visible on top or behind motor. no oil on or coming from turbo fittings or lines. have not done a compression or leak down, but car runs healthy and strong. going to get powells oil separator next week.

how important is a check valve?? I do not have one. yes i'm running a mpx catch can and do not have the factory line that runs from the valve cover to the intake.

 

do a compression test minimum, leak down test is even better. Gotta know engine health before you spend money on the Powell PCV upgrade. Happy to help if I can email works. If you can borrow a borescope have a look at your inlet valves going through the booster vacuum port.

 

how long have u had the 20g on there? the oil collects over time, the powell separator will eliminate the oil.

 

also do you have the MPX on the fresh air inlet or did you eliminate that? Not sure post pictures lol

 

I have the same exact issue. I have oil pre-turbo in the intake and in the CP and IC... I used a full quart of oil while on vacation, 1500 miles total. The car has GMS1 and HP 25psi tune, K&N cai, injen cp, etc.... I am ordering the MPX catch can and pcv valve.... I hope this stops the excessive use of oil through the intake....

 

You might be better off getting Powell's PCV upgrade than MPX oil catch can. Cause MPX oil catch can is not gonna do anything and Powell's has proven his works.

 

do not buy an catch can, they catch absolutely nothing, many of us have tried and they don't catch a thing, pm john powell of powell race parts who commented on here, and buy his oil separator. it totally eliminates the oil in the pipes as many of us have observed from it being installed on our cars. it is well worth the money and u will have no more oil issues in pipes after. just make sure u clean all ur pipes after u install so u have a clean start. the oil separator drains oil oil back into the oil pan.

 

How much is it.... if its 400, that is crazy imo

 

well keep ur money from the catch can and save it for the powell separator, cause I promise u, ud be wasting ur money on a catch can, I know I had one for 2 years, a good one, with wire sponge in it to catch the oil, guess how much it caught? nothing. all the oil was still going into my pipes. u will read the same story from everyone else on here

 

I thought it was crazy to, till I saw what the oil in ur system does to ur valves, and I saw what was all to the kit and how well it worked. worth every penny.

 

What's crazy is spending money on something that is proven to do absolutely nothing on these cars. Save up for the Powell separator, you'll be glad you did.

 

the cai has a hose going from it to the port closer to the driver side(as of today,a checkvalve was placed in that hose) the port on the valve cover on the pass. side goes to the can and the port off the turbo( near the turbo inlet) goes to the other port on the catch can.

 

Cancelling my order for the MPX then....

What I don't understand, is the fact the car just started doing this in the last 2000 miles.... it never did it before, I mean not this excessive, and it has been modded for the last 20K.... so what changed for it to start doing this is my question.... Is something clogged up? PCV?

 

I have oil in my intake, charge piping, IC as well. Runs great.

 

 

hahah, but it does tho. I havent looked in the past 30k miles and I dont intend too. Im sure my valves are coked as ***. Sticking too my seafoaming every 30k miles even though its probably not helping anything.

 

Lmao!

 

Update: If you have excessive oil in the intake pipes and intercooler (more than residue and drops) then more than likely, your PVC Valve is clogged up. It is an $11 part on the other side of the intake, and it will cause the air check valve (connected to your CAI, pre-turbo) to let massive amounts of oil go through it when under interstate speeds and or WOT/high-boost.... Mine is fixed now and now no more oil at all.....