Pics of custom rearmount
Originally Posted by 3800SII
The theory is correct, but you have to look at the fact that you still have so much pressure going into the turbo. Did you say that you were getting your oil pressure from the pan or you are returning the oil back to the pan? It makes a big difference. All in all you still need a check valve and a way to cut down the presure from the oil inlet. A friend of mine has the mocal pump and he seems to think that the pump may be pulling extra pressure through the bearing because of the vacuum. If this is the case then you can change the voltage on your pump to suit your needs. The vacuum from the pump on the oil outlet cannot exceed the pressure going into it by very much. You almost have to measure both sides with a gauge to get it right. The oil tubing size may be too big. Try switching to 3/8 transmission hose which will allow the oil to suck out a little faster.
the oil i have tapped on the fitting right about the oil filter...so it runs from there to my turbo...that hose is only 3/16" with a .035" restrictor....
on the drain side of the turbo i have 3/4" hydrolic hose, so that should be letting the oil out plenty fast for what is comming in
On The Tree
Joined: Dec 2004
Posts: 187
Likes: 1
Yes, but I promise you that it is not coming out as fast as it is coming in. Here is an idea. Take the oil line off from the turbo inlet and let it drain free in a pan (with the engine running) You will be totally AMAZED at how much oil pools up in the pan even with the check valve in place. Like I said before, you still got 55 to 60+ PSI which is being reduced very little all the way back to the turbo. 
If you put on a cheap needle valve then this will help alot of problems. You need to cut the pressure down even more.
If you put on a cheap needle valve then this will help alot of problems. You need to cut the pressure down even more. Found out the oil problem yesterday...it wasnt a seal problem at all...it was a drain problem...i had the drain of the turbo hooked straight into the pump....instead of doing that i built a metal container for it to gravity feed into and then used the pump to pump it out of the container..
