Hey guys, I'm in the middle of a single turbo install that I've been doing for a while now. It looks like I have everything all finished up and its about time to start her up. I have one concern though. When I was doing the oil inlet lines I bent the stock hard line upwards so that my oil inlet line would go up then down straight into the turbo. I did this because I didn't want to put any strain on the hose ends and this way the actual oil line would just bend at the top and not put any strain on the ends. Now my oil inlet line goes a bit higher than the oil filler neck. I was wondering if this is ok, or is it a bad thing to have the oil fighting gravity on the inlet? Is it pressurized enough so it wouldn't matter or is this going to be a problem. Thanks guys

 

This shouldn’t be a problem at all because the line is under pressure

 

Infact 1 thread down I just posted, I am having problems because I have too much pressure, and am getting blowby of the seals.
Stock pressure on the vertical feed line is around 90Psi I have been told

 

Thats what I figured but I am just getting a little paranoid of messing somnething up. I've been doing the install bit by bit forever and if I ruined my turbo or damaged something it would really put a damper on my mood...probably would take my mental sanity haha

 

you're ok

 

I can really relate to that I have been working on mine for a very long time, and just now am trying to work out all the bugs that I couldn’t foresee or didn’t know about till the car was running. Any questions run them by me or anyone here, most people here are willing to help someone that is learning and want to do things right the first time.

Here are a couple pics of mine a few days before I got is started up after the single convertion.

 

Hey John do you have any idea what garrett recommends as a feed line pressure for the Gt series turbos like your GT35R?

 

from what I hear, they are restricted internally and any amount of oil pressure (within reason) should do. Than again, ATP who are well respected turbo parts suppliers and builders say different.

 

Same thing I have read, but I am quite sure now that they are not restricted enough for my application.
I took apart the intercooler piping and I have a puddle of oil sitting in the intercooler from the turbo, so I am sure I am getting blowby from too much pressure being supplied by the engine(better than not enough I guess)

So my next step is to find out what the recommended pressure is from garrett. And change the system to facilitate the pressure they recommend for the turbo.
I have sent out numerous emails but haven’t got one back yet.
So I am asking around here in hopes that someone will have a idea of what it should be, or has some technical information that is not available to me.

 

I cant even get a email back from atp regarding their restrictor, plus I don’t know that I want to go low flow, if I can avoid it I will.

 

I think if you want to get to the bottom of this, find out what your oil pressure is first. If you have some sort of an upgraded oiling system, that me very well be the problem (too much pressure). I'm unsure of why you don't want to use atp's restrictor