oil drain plug as return for turbo

[T77911S]

Originally Posted by quattrorunner

The run into the chain boxes or oil plug don't require a pump but the line into the triangle of death area or the tank requires a pump.

yea I new the triangle of death needed the pump.
just another option for those that have the sump plate that don't want the hose that low to the ground.

I do like the idea of no pump and running it to the sump

[Uwon]

Originally Posted by quattrorunner

The banjo is slick.

+1. Sure makes allot of "obvious" sense.
Johan

[Uwon]

For the banjo, is the thread size and pitch on a 3.2 case 22X1.5 ? (Oil already in car)
Johan

[scottrx7tt]

Originally Posted by Uwon

For the banjo, is the thread size and pitch on a 3.2 case 22X1.5 ? (Oil already in car)
Johan

Setrab susa ProLine M22-AN10 90* Banjo Connection - SET22-M22BJAN10-90 | eBay

[1979-930]

Originally Posted by scottrx7tt

Heres what i did. Obviously, mine is a 3.0 with the sump plate, but you should be able to use it for your application also.
It is a banjo oil fitting from Setrab

This is so clean and simple. One more change just got added to my winter project list.
I can ditch the plumbing and pump system and eliminate the chance of particles being sent through the engine at the same time.
On the down side I already wasted money on a catch can and lines for the new GT35.

[T77911S]

so if you go this way and eliminate the need for the scav pump, can you put a set a stock SC cams in with no modifications?

[1979-930]

^^^ Oooh. Good point. I would think the answer is yes.


Sent from my iPhone while Driving

[quattrorunner]

Originally Posted by T77911S

so if you go this way and eliminate the need for the scav pump, can you put a set a stock SC cams in with no modifications?

Of course. Just plug the drive accessories hole or seal it up some way. Or use it for clewett position sensor for efi?

[Uwon]

Originally Posted by scottrx7tt

Heres what i did. Obviously, mine is a 3.0 with the sump plate, but you should be able to use it for your application also.
It is a banjo oil fitting from Setrab

Really like this setup.
How is the banjo bolt held in place on the hollow bolt? Circlip?
What section do you disassemble to drain the oil? Oil line connection to banjo? Unscrew hollow bolt? Or disassemble banjo from hollow bolt?
Johan

[scottrx7tt]

Originally Posted by Uwon

Really like this setup.
How is the banjo bolt held in place on the hollow bolt? Circlip?
What section do you disassemble to drain the oil? Oil line connection to banjo? Unscrew hollow bolt? Or disassemble banjo from hollow bolt?
Johan

Correct, the banjo is held in place with a circlip. When I change the oil, I just undo the turbo drain line from the turbo side and let it flow into the oil basin from there. I have been using this setup for a year and a half and about 6k miles with no problems whatsoever(except a shattered 2nd gear in my tranny)

[quattrorunner]

I broke two 915 gearboxes. Traded up to 930

[boosted79]

"Correct, the banjo is held in place with a circlip."

Really? How does the banjo seal with just a circlip? The link above for that fitting shows a standard hollow bolt and double sealing washer setup to clamp the banjo so it seals.

[boosted79]

Gravity drain is the best set up, no question. Not sure why Porsche didn't go this route from the start, other than engineers like to sometimes over-complicate things.

[quattrorunner]

Originally Posted by boosted79

Gravity drain is the best set up, no question. Not sure why Porsche didn't go this route from the start, other than engineers like to sometimes over-complicate things.

I've heard of some with flow complaints and smoke as a result.

[boosted79]

If the lines/fittings are too small I can see where that would be a problem.

[boosted79]

I wonder if when a car sits long enough and the oil levels in the tank and sump equalizes the sump level could reach the height of the turbo shaft and start leaking into the compressor and turbine side of the turbo? Not at home right now to check it out. Maybe that is the reason why they used the scavenge pump setup?

[scottrx7tt]

Originally Posted by boosted79

"Correct, the banjo is held in place with a circlip."

Really? How does the banjo seal with just a circlip? The link above for that fitting shows a standard hollow bolt and double sealing washer setup to clamp the banjo so it seals.

it is actually sealed with O rings. the banjo will swivel. I first tried a Mishimoto banjo that worked how you just described, but i got the thread size wrong. evidently, i linked the wrong part. Here is the correct one...
Setrab Banjo Fittings for M22x1.5 Ports 22-M22BJANXX

[scottrx7tt]

[boosted79]

That's a nice piece. Maybe I'll remove my pump and all the associated hardware and do this.

[scottrx7tt]

Originally Posted by boosted79

I wonder if when a car sits long enough and the oil levels in the tank and sump equalizes the sump level could reach the height of the turbo shaft and start leaking into the compressor and turbine side of the turbo? Not at home right now to check it out. Maybe that is the reason why they used the scavenge pump setup?

You have a valid point there. Fortunately, I have never had an issue, but I try to drive my car on a pretty regular basis.