I was at the machine shop yesterday getting a cracked ear wielded on my m54 tubo. The machinist , super old gangster o.g. third generation engine builder. Took one look at my turbo drain. (In place of my a.c. condenser ) and said "bmw motors spin clockwise. If you ever saw one run with out tge cover, oil flings out of the mains. Having a engine rotate clockwise, with the tube I the 9 o'clock position looking from the front , it flings oil right up your drain tube. " made perfect sense with his swirly hand motions in front of my crank balancer.

M54b30s are known for oil going past the rings. The positive crankcase pressure may be exacerbating the issue.

I started to believe it's the turbo since the beginning 🤔

This came out Great 🔥

I have no idea what the problem is but that car sounds like it’s running right. Just send it man. That car will let you know what it needs when you drive it.

Id just send that shit tbh. Keep checking your oil pressure and level after you rip it for a while. It may just be all the oil backed up in the turbo from before having the scavange pump. But it looks alot less than before and it might clear up after you beat on it a little bit.

I would add an oil restrictor to the oil Feed line that might solve the issue. The turbo might be getting too much oil/ oil pressure and or build up 🤷🏾‍♂️

Had problems like this too, venting pcv to atmosphere helped at first, I think I need a new turbo as mine is ebay, next I'm going to change the oil drain

Hi. First block off the oil supply to the turbo to make sure the issue is the turbo. remember thee is alot of oil residue in the exhaust system. make sure it burns out completely for atleast one hour on idle or run the car for 15 minute it will clear out. if it remains smoking you know the deal allready. If it stops you can restrick the journal turbo oil flow a littile bit. if it is ball bearing. you must have restrictor. No one understand they need to flow match calculate there engine oil pump psi and volume to know if the scavenge pump can keepup. Oil type and visco also plays a huge roll. synthatic also plays a huge roll. daily driving needs 0-40 5w-40 as long it ends with 40. beating on it or drifting need to end with 50 or 60 oil grade.

Your scavenge pump isn’t working because you drilled the return on the oil pan too low so its probably submerged partially in oil. You have to re drill the oil pan return higher. Or you can move the return to the timing chain cover.

Instal an oil restrictor journal bearing turbo 1.5mm ball bearing 1mm

how ya been carl? its nice to see some progress on the e46

Did you try to use the vacuum, to recirculate the drained oil from the turbo instead of using an external electric pump? I think you can use the catch can, to suck up oil, then drain back to the oilpan. Put a hose between the output plug of the catch can, and your intake manifold to use the engine vacuum under low loads. Drill a hole to the bottom of the catch can, put in a check valve and drive a hose to the stock dipstick tube ccv connector. Build in a PCV valve to the valve cover ccv plug to release positive pressure under boost to the atmosphere. Disconnect that hose from there, and connect it instead to your lower oil canister, to suck up oil from the canister. I think with this design you have vacuum, and maybe can reduce oil burning. What do you think about this? Sorry for my bad english. :)

Maybe add a diaphragm in the system on the input and exsist... I've seen in line one way valves that may help

Too much oil in turbo?. A restrictor might help. Or check ur oil pressure. Probably getting to much oil.

Is it a maxspeedingrods turbo? Mine shit itself on first start up, never even turned a wheel. They weren’t interested in warranty either.

Have you tried using a smaller oil restrictor on the turbo feed line?

Mount your oil drain above the pan on the block a little past the oil pick up, also if your lazy put an oil restrictor with the scavange pump you just put in you’ll be fine.

What do you think about relocating the oil drain to the side of the timing case? When I was doing research for a place to put the oil return for my turbo I found a thread that showed going from the passenger side of the timing case.

Did you ever get that scavenge pump to work? Is it worth buying. And is it loud? Thanks man, nice set up.

See if the turbo is wet inside the exaust manifold before the turbo. Mi e was smoking because it was buildding to much pressure in the crankcase due to all the ringlands being cracked. See if it smokes from the oil cap like that when you let off if it dosent then turbine exaust sealing ring might be melted with the gap shut i would take off the oil cap and then the turbo if its only wet oil after the turbo amd not befor then the turbo is bad. Also make shure pressure isntover 40psi at the turbo becuase anything over 40 is too high and causes overfill off the cartridge and smoke to overflow into the exaust turbine causing smoke

Put it on the rollers check the oil after a few passes it will be fine or go top mount but don’t think it’s that serious

Bro the issue you are having here is due to AN10 , they are so small for journal bearing turbo you need at least AN12 Journal bearings do not require any restriction

Hey bro, love the content, I'm having the same issue with my low mount turbo e36, now did you fix this as a final result

Hey dude im really not an mechanic but i wanted to build a turbo for about 3 years. I think its maybe the intake bridge or the crankshaft air. Would you like to talk on pc? My english writing is terrible but i really think i can help you. :)

Hi, you may want to check with turbosmart. They do have some oil pressure regulators for turbos. I think too much oil may be running in the turbo , or it may just be the turbo. Im also assuming your tuning was properly done , and your not running too rich, and you may be mistaken oil burning for some fuel burning. I would keep an eye on the oil level, to help you determine if indeed its oil, and how much its consuming. But on this end its hard to tell wether its blue or white smoke. Here's the link: www.turbosmart.com/product-category/products/turbo-oil-management/page/2/

You need oil restrictor bro

Bro no. Get a proper oil restrictor. I’ll message you on fb

Scavenge pumps are like taxes avoid them when you can...

You want to get rid of it

Where's the clickbait?

Brother bmw life lol I'm doing the head gasket on my car😒😒😒

You probably have the wrong fitting on your oil feed line into the turbo ..

ls swap