questhe
20+ Year Contributor
- 72
- 1
- Oct 22, 2002
-
Mesa, Az,
Arizona
Just FYI, when I started up the car, I cranked it with the plugs pulled. So about 400 RPM.
I held the end of the feed line that goes to the turbo so that it sprayed into the oil fill hole.
I did this to pre-filter the oil so that the turbo would not see any debris -and- to insure that the oil pump was fully primed prior to startup.
When the pump got primed, the flow out of the -4AN hose was unexpectedly strong. I mean I could have painted the top of the garage door from the engine bay.
Now, the flow is directly proportional to the RPMs. Also, the oil pump is a positive displacement type pump. Google on that if you don't know what it means. Picture the oil flow and pressure at 4000 RPM - it is 10x this.
So, you better not have ANY problems draining that oil out of the turbine housing else it has no choice but to blow through the seals and make you a James Bond wannabe.
Another suggestion is to use lighter weight oil. It will reduce pressure through lower viscosity.
I held the end of the feed line that goes to the turbo so that it sprayed into the oil fill hole.
I did this to pre-filter the oil so that the turbo would not see any debris -and- to insure that the oil pump was fully primed prior to startup.
When the pump got primed, the flow out of the -4AN hose was unexpectedly strong. I mean I could have painted the top of the garage door from the engine bay.
Now, the flow is directly proportional to the RPMs. Also, the oil pump is a positive displacement type pump. Google on that if you don't know what it means. Picture the oil flow and pressure at 4000 RPM - it is 10x this.
So, you better not have ANY problems draining that oil out of the turbine housing else it has no choice but to blow through the seals and make you a James Bond wannabe.
Another suggestion is to use lighter weight oil. It will reduce pressure through lower viscosity.

