MrHorsepowerLSx

iTrader: (13)

Would you be able to post a pic of how your drain line looks?

TrickTurbo

iTrader: (12)

This pic makes that line look like its traveling down hill.

Can you take that pic from the driver side area straight across at it?

Gadgetized

iTrader: (9)

What is the fitting going into the pan? If the line is adequate and the fitting is restricting the flow, that could add to the problem. I ended up changing mine to -12 and straighter to the side of the pan just to be on the safe side.

Mean Green z28

iTrader: (19)

I have pretty much the same turbo, but On3 branded. I don't use any restrictor on my lines though as it's not a ball bearing unit. I've read it's needed only on BB turbos. Should I be? However, my oil pressure isn't a high as yours. Mine dops off to low 20's when hot and idling like many other LS motors. Maybe I need a high volume pump too hahaha

GMCtrk

iTrader: (27)

20 psi is low, have you removed the oil restrictor in the pan?

I personally think the culprit is that drain line. It shouldn't be going parallel or worse to the ground as in the pic.

Mean Green z28

iTrader: (19)

You mean the bypass on the pan for dod? That's one thing I never checked after I bought the truck. The dod delete was already done and the bosses in the valley plugged with 1/8" npt plugs

MrHorsepowerLSx

iTrader: (13)

Only reason I am running restrictors is that I had a 72mm BB on the truck prior to this one. But the situation was no where near like this. And my oil pressure is factory GM pump. I bought motor new about 5 years ago as a reman from GMPartsdirect or something like that. But I took Pistons out and installed total seal rings and gapped then for boost/N20

It is a 3/8 NPT to 5/8 barb

GRRR65GTO

Maybe this is the problem /\

I though most people tap the pan for 1/2 npt, thats what I got with KBs kit

Turbo09

We're in a snow storm right now, when that stops I will get a picture.

All I run for restriction is the trick adapter for oil cooled trucks, even though mine is not.

MrHorsepowerLSx

iTrader: (13)

I have the same kit, but I restricted it down more based off of my high oil pressure, and I had a BB turbo on it before the upgrade. No rush for the oil line pic, we just got a few inches as well


I used the feed line/drain kit from Trick Performance