Possible oil drain issues

[dmax711]

Long story short since I did the triples I've had more smoke then usual. So the other day I started taking it back apart and realized the oil was backing up into the turbos. I've been pulling out my g.d hair trying to figure out why for days now. Both drains go to front of oil pan and it's a downhill shot the entire way. Anyone else run into a similar problem?

 

[IOWA LLY]

Any pictures of your drain setup? What size fitting do you have going into the oil pan?

Sent from my SCH-I535 using Tapatalk 2

 

[dmax711]

5/8 hose and all -10 fittings. Each turbo has it's own drain to pan. And I know it's above oil level . I'm really at loss for words here

 

[Burn Down]

Are you sure it's backing up? What about a bad turbo maybe?

 

[dmax711]

I'm 100% positive. These are brand new and I had two other s300's here I put on and it did the same thing.

 

[IOWA LLY]

Do you have any restrictors in the feed line fittings? Is it possible that where you are tapping into the pan is getting oil flung onto it from the crank keeping it from flowing freely?

 

[dmax711]

No on feed line, do you think it's getting to much oil? And where I put the oil drain fittings I know of a few other triples trucks in the same spot

 

[IOWA LLY]

I don't know. You might check with your turbo supplier and see what they think about running a restrictor in the feed lines.

 

[dmax711]

Earlier today I pulled drain lines off and stuffed them into 2 bottles to make sure they were draining. Filled 2 Gatorade bottles up in about a minute and a half.. Maybe I am getting to much oil, I've just never heard of anyone having a problem like this.

 

[Burn Down]

They are both Journal bearing correct?

 

[dmax711]

Just regular b.w. S366's

 

[Harbin_22]

How big are your supply lines?

 

[Harbin_22]

And where do they come from

 

[dmax711]

-4 which is 1/4 hose I think, and from passenger side of block towards the front.

 

[Harbin_22]

Weird. Same thing as other twin kits usually run. Stock oil pump too?

 

[dmax711]

Yup all stock. I've pushed it out of the garage and am out drinking, I've lost all motivation with it. Idk what to think, other then try an oil feed restrictor

 

[Burn Down]

Don't go to small with the restrictor... Journal turbos like a good oil supply. Might call borg on monday and hit them up about it.

 

[Chevy1925]

I run a -3 on my big turbo and my ko3 on my samurai and no restrictor. Maybe try a restrictor of the same size as a -3 line. My oil drain is into my valve cover though on the truck.

 

[Burn Down]

What kind of oil pressure are you running?

 

[dmax711]

I'm pretty sure it idles a hair below 30. And at idle it will shit oil out the down pipe and drip out the band clamp like a siv