Oops it wasn't you it was allrotor93 it's a brand new aspec gt3574r kit

 

Yeah I'm thinking a bad side seal and oil control ring, if I drive it I can't tel if its smoking but when I stop it takes a few seconds and smoke comes pouring out the exhaust and I can see the smoke coming from the catch can under the hood. Pretty sure it's rebuild time again

 

Well any time I get confused for Johnny 'Sexay Lips' H-Borg it's a good day

Hard to say at this point what the problem is. You'll need to do more investigation, but it ain't lookin' good.

 

Yeah I don't know how much more investigating I can do haha.

 

as suggested maybe you need to get a dummy t4 turbine housing and then plate over where the CHRA was and also run an old wheel bolt or stud as the oil supply banjo and run the engine

if the catch system is sealed in anyway then that will also cause the issue .. and for sure it should have a mild vacuum from air cleaner or purge valve applied across it

but am suspecting also you have excessive blowby across the sides of the rotors , be it cracked corner seal.. nibbled side seals.. or lack of rotor land clearance messing up the plate

 

Replace ur oil cap with an air filter. See if it goes away.

 

I have tons of smoke coming out my exhaust now.

 

Are you close to any rotary specialists?. Maybe you should have them take a quick look at it.

 

I would take it to Rob then and let him look at it.

 

I just watched the vid. I've seen a few oil caps blown off but that is a lot of pressure. Is there oil in the intake piping after the compressor?

 

Ill have to take my intercooler off and check, but Im sure there is. Also I replaced my sparkplugs yesterday morning and they didn't seem to have any sign of oil.

 

I'm not sure why you keep saying this..... if the crankcase is smoking badly without a cap at all, a filter isn't going to make any difference whatsoever.

Oil in the intercooler piping has nothing to do with this IMO.

It's not the turbo. Most likely it's the engine---turbos will not cause oil dipsticks to shoot out from pressure.

 

After watching the videos I see this is not normal.
I've been wrapping my head around it and it is most likely internal.
Just make sure u check all simple fix possibilities and do a compression test before pulling the motor.

The bigger question is if its internal what do u need to change in your tune to prevent it from happening again.

 

Would a comp test tell you if it's a bad side seal or corner seal though?

 

I highly doubt it a compression test will give you any answer your looking for. I think it's time to pull that motor out bro!...

 

yup that's what I figured, well stay tuned. It will be a few months before I can pull it, but Ill keep this thread updated for what I find out and for future reference.

 

well finally got around to pulling the motor and my exhaust hole on the front housing was full of oil, i cranked the motor by hand and it pushes about a tablespoon of oil out the exhaust.

 

For future venting its best to run a vent from each side of the motor. I will run a line from the rear turbo oil drain from the stock twins to a catch can and a tube from the fill neck to the catch can. Make sure your can is a vented can with dual inlets.
Been doing it this way for years with no problems.

 

well got the motor all rebuilt and when we had it torn apart then only flaw we could find was just a little tiny chip out of the smaller control ring, the o-ring was still good and all the other seals still looked amazing, I replaced the all anyways. Installed the motor in my car and it started right up, I had the usual smoke on first start up but after 10mins or so it cleared right up and no more smoking. Now time to break it in and start boosting to see what a gt3574r can do

 

The rear return that is normally blocked off? I'm assuming you'd just run an adapter plate and fittings/lines to the catch can? Do you happen to know what size that is? That's a good idea.

 

Glad you got it sorted. From my past turbo builds (pistons motors :p) you should have the oil restrictor fitting pointing downwards towards the turbo bearings. Remove the fitting if you can and test the flow both ways and you'll see why. It trickles oil the way you have it. And squirts with it pointed down with the big end facing the oil line (unless you already did this)

 

Sorry, to bring this old thread back up but I am having the same problem.

Engine has less then 10 miles on it.
turbo did need to rebuilt since the seal was bad.
still smoked only after oil started getting back to the turbo from the feed line, I put a restrictor on it and it did stop a little bit.

Also at first before i took the turbo off to get rebuilt i took the feed line out and ran it to a bottle and the smoked stopped completely.

So i will try turning the restrictor the other way like Bezrx7 has mention and see if that helps.

Catch can is done properly and all.