Where are you tapping your Oil Return from your turbo?

I was talking to SprintMax and he was thinking about doing the Upper Oil Pan from where he currently has it running now.. can't disclose that.. he told me in privacy..

I was wondering how you other guys were doing it..

 

I would think the oil pressure switch hole is good. Anyway...I don't have a turbo so I should just shut up now

 

thats where my oil sending to the turbo is now...

 

Yea the oil pan is where I was told....thats about the only thing that a 'turbo head' I know disliked about Nigels kit.

Or he said you could use a (HKS?) catch-can like on his mazda. Catches oil from the valve-cover? and the oil return, then routes it back into the oil pan...or something like that...I 4got..

 

 

um...the way he described it is, its a little box or can, from HKS or greddy, that has two inlets, one from the valve-cover (I think), and the other from the oil return. Then there is an outlet into the oil pan. I think he said the can sits lower then the turbo in the engine so the oil line from the turbo is on a downgrade.
I believe that valve cover connection keeps oil(vapors)out of the intake track.


But you could just put on a breather filter, and route the oil return to the oil pan.

 

why would you route the turbo oil return into a catch can??

catch cans are used to collect oil blow-by vapor.

 

 

Oil return line from turbo should go to oil pan.
This has been the setup on every turbo car i've ever seen.

Ant

 

you have to careful of where you tap the oil pan. tap in the wrong place, and your oil doesn't flow .... by the way, my kit does not REQUIRE you to tap the valve cover, that's just for convenience. You can also use a scavenge pump to pump oil to the valve cover if you like. I checked my turbo twice since it has been on the car and there are no problems

 

Plese expand on this.

 

oil return has no oil pressure so it needs gravity to return the oil to the pan. You should tap the return line lower then where the turbo is mounted. if its tapped higher then the turbo, oil wont return to the pan.

 

I've heard most tap on the sump area(since its the "deepest" part). of course above the flow level though.

 

Is that really a true statment? I do agree the return line should be lower than the turbo. Gravity does help things. But doesn't the turbo create some suction/pump to get the oil in so the return line would have some pressure. If not, where would those pressure go? It has to go somewhere right?

 

Well there has to be pressure TO the turbo, but once it goes though the turbo bearins, it's considered a gravity feed from there.

My question is, what if you tap the oil pan BELOW the oil level? Will it still drain from the turbo?

 

well what i meant by no pressure is when compared to the oil feed line or anything else that has some oil pressure. There might be a little bit of pressure left, im not sure on that.

the tap has to be above the oil level. Oil wont return properly to the pan if its tapped too low into the oil pan. We agree that there is little to no pressure in the return line rite? with that, there is no pressure to push the oil into the pan, gravity wouldnt work in this situation if the tap is below oil level, its also possibleto clog up the turbo if done improperly.

 

If you tap too low ... below the oil level in the sump, the pressure from the oil in the sump will prevent oil from flowing from the turbo and oil will back up into the turbo and seep through the seals in really bad cases .... Matthel is right, you should tap at a place lower than the turbo, this is one reason why my turbo sits so high ... it sits higher than the valve cover enough that oil can flow through. If you MUST tap a point higher than a turbo, you can use a scavenge pump below the turbo to pump oil out of the turbo and to wherever you like. Some race cars do this.

 

Okay...so where do factory turbo cars return their oil to?? ie. Supra, DSM.. I would think the same location would work.

 

My buddy Sam had the oil return line from his turbo at or slightly below the level of the oil in the pan. He didn't have any problems. I hope Neal is right.

 

IIRC it needs to be in the upper oil pan not the lower pan. Right?

 

to my knowledge and experience the oil pan is the optimal place most OEM manufacturers tap at...then the oil can just re-run its course from the sump pump.

 

this is where the tap is on the Z31T oil pan...just below the seal(maybe an inch or two or so) and on the sump section...its the "red dot"



and Jeff, Sam didnt' have any probs with the system?? like turbo97 said...I was under the impression that if you do that you'd get "back-up" in the lines and all that nastiness.

 

If the vertical drop is high enough, you might get away with it, but it is a very bad idea to have it below oil level at the return

 

What in the world happened to my post? I had a post explaining what I thought of the situation. It was obviously here because it looks like Jeff read it and now its gone... Weird.

 

yeah I can see how its dnagerous...I thinking for that to work basically the return hose would have to come at a very sharp 45* angle(or the bung would have to be at a 45* upward angle) in order for the oil not to "pool" up in the lower section of the hose.

 

I return my oil to the oil pan, this is what I was told by many people is the proper and correct way. No problems here to report.

 

Which one... upper or lower?

 

lower

 

higher

 

you wanted an answer? or you wanted to post pimp?

 

Bull's eye.

 

Upper oil pan, above the oil level.
Approximately 8-10 inches below turbo level.

Here is another question since we are discussing turbo's. Do any of you turbo maxima guys run water through your turbos ?

Ant

 

i asked an A or B question.. you gave me a C answer

 

Ant, just oil.

 

yes, on my buddys setup for his 92GXE we are "t-ing off"/tapping the coolant line near the TB, run it to the turbo and back. added cooling assurance, I can't really see it being that much beneficial thoguh...but hell its not that hard to do.

 

how can anyone tap on the lower oil pan anyways? there isnt no room on the sides.

 

how can anyone tap on the lower oil pan anyways? there isnt no room on the sides.

 

Depending on whether or not you have a "wet" or "dry" housing, you can water cool if you wish. Mine currently is not watercooled, but I have figured out a way to water cool.

 

Lower, right above or at the level of oil when the car is running.

 

Are there conversions? Like if you hada dry one at first but wanted wet later on?

SuDZ