Turbo oil feed

[Iloveboost]

Im on the learning process for the oil setup on my future
m20T

i know how to route the drain from the turbo to the Pan .

i want to know how to feed the turbo ?
ive seen many people put a T on the oil pressure swich,
is the oil pressure swich is the same as the oil pressure sensor close to the oil filter?
if no , where is located the oil pressure swich.

second question , did i must put oil filter relocation kit to clear the manifold of i shoul be fine stay with oem location ?

last thing , if I put an oil filter reloc kit, will I can put an oil cooler ?

thanks !!

[nomansland92]

Ya most people just tee of the oil pressure switch. These cars don't have pressure sensors factory but always a good idea to add one. Depends on the manifold you get, some clear some dont. I recommend a oil cooler but lots of people don't use them. Sent from my SM-G892A using Tapatalk

[varg]

The best way is to use an oil cooler banjo bolt that has had a fitting attached to the head, so that you are getting fresh oil right out of the filter for your turbo. Whether your filter needs to be relocated will depend on what manifold you use. As long as there is enough clearance to get the oil filter on and off a runner near the filter isn't an issue, if it's uncomfortably close (within a couple of inches) it's easy to bend up a piece of sheet metal to shield the filter.

[Iloveboost]

Thanks !!
can you shoot me picture of that banjo bolt ? Or a link to buy things to make it happen ?!

[varg]

I don't know who sells them, I just think I've seen it around. I took mine to a local hydraulic shop and had them drill the center of the bolt and braze the AN fitting onto it.

[citizen_insane]

If you're not planning to run AC, you can rotate the oil filter housing toward the front of the engine and get a lot more clearance for the filter installation/removal. For actually supplying oil to the turbo I ended up machining a manifold which holds the stock oil switch, an oil pressure sensor, an oil temp sensor, and the turbo oil feed. I pulled the oil from the original location of the oil pressure switch near the filter.

[zwill23]

I went with a similar setup to varg but just drilled and tapped the banjo bolt with a 1/4 NPT tap. Go slow and center the drill bit on the banjo bolt as much as possible and you should be okay. I haven’t had any leaks just tapping it.

[McGyver]

I went with a similar setup to varg but just drilled and tapped the banjo bolt with a 1/4 NPT tap. Go slow and center the drill bit on the banjo bolt as much as possible and you should be okay. I haven’t had any leaks just tapping it.

This is the approach I'm going to use, although I have access to several lathes for the drilling/tapping.

OP, I bet your local machine shop would drill/tap the bolt for less than it would cost you to buy a good set of drill bits and a tap.

[Iloveboost]

Alright !
thanks everyone, it seem a good idea and I will go this route !

[varg]

OP, I bet your local machine shop would drill/tap the bolt for less than it would cost you to buy a good set of drill bits and a tap.

Agreed. The whole reason I didn't even attempt to do it myself is because all I have are cheap bits, a hand drill and some old chinese taps. The hydraulic shop I went to nicely attached an AN fitting to mine for less than the cost of a good tap and bit. let alone the drill press I'd have needed to do it straight.

[zwill23]

Thread revival here.

My turbo setup has over 30k miles on it now and I have been using this oil feed location the whole time. I recently just killed another BW S257, the first one lasted around 15k miles, the second roughly the same.

Have you guys had any turbo failures with this location? I am going to replace the oil feed line and test the oil filter housing location and teeing off the oil pressure switch to see if the flow is any different. At least on cold starts, I bet teeing off the oil pressure switch will get oil to the turbo faster.

Right now my theories for turbo failures are a bad oil feed line, bad oil feed location, and or poor turbo treatment. The car is often exposed to extreme temps in TX and I don't consciously let it idle after driving.