Turbo 1uz - Turbo oil feed and return

[stradlater]

Hi guys,

All those who have turbo 1uz's, where have they taken oil feeds from and fed the oil return back to?

I was thinking

FEED: Split off the oil filter position.

RETURN: Drill into the upper portion of the sump and plug something in there.


Is that the right spot to put them?

[IN 05 NT]

yup,

you can fit a T piece into the oil pressure switch which is on the oil filter block/housing, and return just to a fitting welded to the sump,

i hope this is for the 23?

[stradlater]

Yeah, it is for the 23.

I was wondering about more specifics though. like exactly WHERE in the sump casting it was put, and how high up, etc..

[IN 05 NT]

get onto lextreme.com theres quite a few good write up on the 1uz, and
pure porn for some :D

HERE'S THE LINKY YOU WANT, http://www.lextreme.com/oil.html

[IN 05 NT]

you can put the return pretty much anywhere you want, just aslong as the turbo sits higher then the oil level line, to prevent pooling in the bearings. (if you get what i mean....)

[stradlater]

Yeah, cool. Thanks for the link.

I know about the level of the oil return, the concern was more; at what point in the sump should it go.

That link is good.

[oldcorollas]

return should be below windage tray.. and toward front of engine, since most oil flow will be during accel... why did they choose directly under the crank pulley?

that big arsed t-piece hanging off the oil filter mount looks like a motor waiting to lunch itself ;)
sure a shirt soft line, to a T piece hard mounted to a bracket would be a better and less fatigue prone option?

[twentyEight]

I can't uderstand why they put it under the crank pulley either!

Plus, I would put it in the Steel Pan, not the Alloy Sump! (Which would be below the windage tray as OC suggested)

[stradlater]

Yes, but if it's in the steel pan, it'll be at roughly the same level as the oil, and could cause pooling.

EDIT: And why below the windage tray? The 1g oil return from the factory was above it.

[twentyEight]

I believe the pooling occurs when the Turbo sits below the oil level, not the oil return...

[The Real Roadrunner]

depending on turbo placement is it possible just to run the return back in where the oil level sender is/was?

don't use a T into the block and have a sender hanging off it, ive seen 5 of them snap so far and one of them cost the owner an engine + a turbo.

do as OC suggested and run a 4" section of braid out to the T and have it mounted on a bracket, also if your using a brass T make sure that the oil galleries are big enough for the oil supply as most of them are only around 1.6mm id, should be at least 3mm.

cheers
linden

[The Real Roadrunner]

pooling will only occur on 2 occasions, 1 your return hose doesn't have a constant fall to it or 2 the return goes in below oil level, shouldn't happen for any other reason unless you have a severe windage or blowby issue.

cheers
linden

[twentyEight]

I believed wrong... :o

[stradlater]

Cool. Thanks Linden.

So basically, use the hole where the oil level sender is (I'm not gonna use it anyway) and run braided line out of the oil pressure sender hole, to a t-piece mounted solid against something THEN run the feed off that.

Also, what happened to that return PM linden? ;-)

[The Real Roadrunner]

simply missinformed:p (that was in response to 28)

buried in my inbox, ill dig thru tonight and reply to it.

cheers
linde

[ed_jza80]

i cant tell you how many times ive suggested to david (lextreme) that teflon tape on oil line fittings is a retarded idea... but, well...

dont use teflon tpae on oil systems fittings ;)

[oldcorollas]

but the tape is supposed to seal against "gas" leaks :D and "gas" comes from oil so... :P

(edit: i'm kidding.. don't use teflon tape)

[The Real Roadrunner]

why not use a proper pipe sealer? ie the non hardening stuff.

[stradlater]

I did think that teflon was bad..

[V8surf]

What sort of sump do you have? (Front, Mid or rear?) I ask this cos the front sump version has a nice little inlet with bolt holes around it on the drivers side to return the oil. Dont know how to send pics, but I can go out and take a photo if you want? (I dont have a turbo, but I did have to plug the hole up)

Cheers.

[stradlater]

Front.

I know exactly what you mean. That's the oil level sender unit, which I'm not going to use..

So I could use that for my return, my concern is that it's on the other side of the engine bay from where the turbo will be, so I'm cautious of using it. I'll probably end up using it though.

[The Real Roadrunner]

weld a -10 male fitting on the sump in the position you want and job done, then you dont have to worry about tightening clamps and other such nasty things.