Well where to start....One day my car started pouring oil smoke, I thought my twins went bad. So i purchased a gt3574r, installed it and I'm still getting smoke, no where near how bad it was smoking but still some. It smokes a lot after I boost and on decel. So for the excessive crank case pressure, after I went single, I capped off the lower nipple on the oil fill tube and left the pcv on the other nipple. My car keeps blowing the dip stick out of its hole and smoke comes out. Can this all be caused by a bad pcv? or are my oil control rings wearing out? Will a oil catch can help solve this issue? Thanks guys

 

My guess?
It's because you capped off the only way that the Oil filler tube can get air.
Where else is the pressure going to go?If you close the system off the oil will start going somewhere else.If you keep it breathable then it can do it's job.

If you T the 2 nipples(oil filler and center iron) then it may help you.

(I don't even have a PCV or anything else on my TII..yet..I just run 2 hoses,T them together and leave them to atmosphere,Above the height of the Oil filler tube,attached to the firewall..for now.
I have a catch can but haven't installed it yet.)

 

thats what i was leaning to. what nipple are you talking about on the center iron?
So if i just cap off the vacuum line where the pcv went and then used the two nipples off the oil fill neck to go to the catch can, would that work?

 

Well on my TII( you have an FD,so I am not sure on that).
I have a nipple on the filler neck and also one that comes off the center iron.
Basically you need to have the Oil filler neck either seeing vacuum or air.(but NOT boost in any shape or form)
Plug your nostrils..you can't breath right?..same thing happening here.

Ya,what you mentioned is fine,with the catch can thing.I am assuming that you are plugging the hose(or nipple) to/at the Throttle body.

 

yes Ill plug the throttle body nipple, and run the two nipples off the oil fill neck to the catch can. Its a greddy catch can that doesnt have a breather, is that going to be ok.

 

catch can still needs to VENT,so as long as it vents,somehow,ya,it's ok.

 

I'm getting lots of smoke out of my oil fill neck, is that a bad sign?

 

That doesn't sound right..
I gotta bump this for ya to get some others to post up their opinion.
As I said my FC is vented to atmosphere and no lines go to the TB at all,so If your neck is smoking there has to be something up.

BUMP!

 

Anyone? Could this just be caused by blow by since I capped the two nipples off for a second or are my oil control rings getting worn

 

i deleted my pcv valve from the oil filler neck to upper manifold, caped it on the intake manifold and the oil filler neck is venting to the atmosphere. how many miles are on your motor?

 

un cap the top plug on the filler neck.

my FD did this, and i simply pulled the vaccum cap off and pow, no more cloud of smoke behind me.

 

When I bought the motor last year, it was a pineapple rebuild with 9k on the motor and I've probably put 3k miles on it. I still have the pcv running to the uim but the other nipple is capped. I decided to drive it with the oil cap off and it smokes out the fill neck pretty bad. And still smokes a little on decel out the muffler

 

so is the pcv suckin in air from the atmosphere into the uim?

 

No the pcv is still connected from the fill neck to the uim and the other nipple on the fill neck is capped

 

you need to delete the pcv valve and cap it on the uim and do not cap anything on the oil filler neck. since you have the pcv connected and the oil filler cap is removed it is sucking air from the big openining through the pcv valve.

 

That will get rid of the smoke coming from the fill neck?

 

no but it will help the car, when my turbos started to go out i had the same smoke through my oil filler neck. but it seems like a positive pressure in the crank case to be coming from the oil filler neck.

 

Ok I did that and still a ton of smoke from the fill neck? Time to tear the motor apart?

 

im not sure you need a rebuild because there is so low miles on the motor this has me stumped. let me do some more research and ill let you know what i find

 

Alright thanks

 

what premix ratio are you running, has the car been tuned for the single turbo? by who?

 

and the oil catch can needs a vent

 

I premix 1/2once per gallon. Also it hasn't been tuned yet, I'm getting it tuned Thursday. I installed the catch can, I ran one line from the oil fill neck to the catch can and left the other nipple open I. The catch can.

 

apexi power fc?

 

Yes