m52 Turbo Build

[328iFun]

I can't see myself clock this thing with it on or getting it off and back on for that matter.

There is no room to reach the top b olds on the back housing and when rotated the oil feed will hit the manifold without 90 degree feed fitting

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[328iFun]

Now I know why some ppl go top mount my god

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[328iFun]

Was able to rotate the cartridge without loosening those 2 upper bolts. But I'd say the turbo is clocked to almost 8-8:30. And I think I did this because I couldn't turn anymore because of the fitting

Have to grab a 90 degree feed fitting to clear the manifold. Probably pick one up tomorrow and report back

I did run the car with no drain connected and it did not smoke. So i'm pretty confident now even though you all told me 10 times that it is the drain

thanks again

[328iFun]

Does anyone have any recommendations on an oil feed fitting to clear the manifold:?

The turbo center cartridge needs to rotate towards the motor the straight fitting is too tight:



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Butters, if your out there!?

Or anyone

For the vent instead of using home depot fittings I want to run steel lines from turbo drain to scavenge pump. What fitting should I use to vent in this case? Simply an AN earls type fitting?

[someguy2800]

For the fitting on the top of the turbo go to any hydraulic hose shop and ask them for a 1/4" JIC to 1/8 npt fitting. Its dimensionally the same as AN

https://www.discounthydraulichose.co...2503-04-02.htm

https://www.discounthydraulichose.co...2501-04-02.htm

For the drain you could do something like this right on the bottom of the turbo. The female nut would go to the bottom of the turbo and the fitting on the side would be the vent

https://www.discounthydraulichose.co...2-10-10-10.htm

reducer for the vent line

https://www.discounthydraulichose.co...2406-10-04.htm

1/4" JIC would be the same as -4an and 5/8 JIC is the same as -10an

[milKt]

Question...answered.

See? even the Untouchable Buttres is sometimes too busy.

[jakeE36325]

Now I know why some ppl go top mount my god

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There are plenty of top mount problems!

[milKt]

There are plenty of top mount problems!

I haven't found one yet.

[328iFun]

For the fitting on the top of the turbo go to any hydraulic hose shop and ask them for a 1/4" JIC to 1/8 npt fitting. Its dimensionally the same as AN

https://www.discounthydraulichose.co...2503-04-02.htm

https://www.discounthydraulichose.co...2501-04-02.htm

For the drain you could do something like this right on the bottom of the turbo. The female nut would go to the bottom of the turbo and the fitting on the side would be the vent

https://www.discounthydraulichose.co...2-10-10-10.htm

reducer for the vent line

https://www.discounthydraulichose.co...2406-10-04.htm

1/4" JIC would be the same as -4an and 5/8 JIC is the same as -10an

Awesome. Thank you.

Not sure where a shop like that is around my area though.

I do however have a shop that builds engines close by though. They have all those fancy AN fittings, earls, etc... Pretty expensive though.

Hopefully Ill have this sorted by the end of the day.

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There are plenty of top mount problems!

I feel that your speaking of general "turbo E36 problems" which I'm sure we all have if not consistently, every once in awhile.

But with the Bottom, Id probably spend an entire day trying to get the turbo off. I mean its tight. And I did away with AC anyway....

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I haven't found one yet.

Point exactly

[someguy2800]

do a google search for "hydraulic shop", pretty much every small town in the country has one. I have one in town about the size of my garage. One room is all fittings and a desk and the other room he builds hoses.

[rajicase]

There are plenty of top mount specific problems as well. I don't want to turn this into a top vs bottom mount debate because it's been had many times already.

I went bottom mount and obviously prefer it, so I'm biased. But I would never switch to top mount for many reasons.

[someguy2800]

Thats why you get an e30, then you only have one choice

[328iFun]

Would love to have an e30 m50 swapped turbo

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[328iFun]

There are plenty of top mount specific problems as well. I don't want to turn this into a top vs bottom mount debate because it's been had many times already.

I went bottom mount and obviously prefer it, so I'm biased. But I would never switch to top mount for many reasons.

I think a lift should be a reuquirement if bottom mount.

My back is killing me

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[NOTORIOUS VR]

I think a lift should be a reuquirement if bottom mount.

My back is killing me

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A properly sorted/built turbo system (regardless of top or bottom mount) would need to be touched/serviced for a very long time.

[328iFun]

A properly sorted/built turbo system (regardless of top or bottom mount) would need to be touched/serviced for a very long time.

Yes, I expected that.

But driven frequently in addition.

I'd be a happy camper I got to put some miles on the car and play with the boost controller a bit

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[328iFun]

Managed to get the turbo clock to about 6

Bought bunch of fancy fittings today.

Does anyone know what size the fittins for the turbosmart waste gate are. They're smaller than 1/8npt







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[328iFun]

Also has anyone seen the inside of the dipstick tube where the CCV connects to it? You would think the orifice would be completely open, its not.

I had an extra tube so I cut the flange off at the base and there's a wall and a recess of maybe a CM or so in width for the oil to drain into.

Im thinking about drilling a larger hole and welding a straight AN fitting in its place

[pbonsalb]

Drill a 5/16 hole straight through the tube where it would sit about an inch below the top of the oil pan. This is what we did when draining our Vortech V2 superchargers 10 years ago on obd2 cars. My dipstick tube still has that hole through it and I have scavenge pump drained a ball bearing Garrett through the old CCV drain stem.

[328iFun]

Drill a 5/16 hole straight through the tube where it would sit about an inch below the top of the oil pan. This is what we did when draining our Vortech V2 superchargers 10 years ago on obd2 cars. My dipstick tube still has that hole through it and I have scavenge pump drained a ball bearing Garrett through the old CCV drain stem.

I did drill holes for it drain out of the side of the tube. I even cut a square section out of it. Ill post pics in a bit

[328iFun]

So heres what I plan on doing.

10AN Turbo Drain Flange to 10 AN on scavenge pump, 8AN from drain side of pump to CCV tube.

Y right after turbo drain to 10AN up to hood with a breather.

Crossing my fingers and hoping it works. I think 10AN should sufficient. Have to use 8AN on return side because CCV tube isn't wide enough for 10. I think using 8 will help build pressure on the return side anyway.

I was checking the tube out last night, put a close hanger down in it and was pulling out all kinds brown gunk. Probably 20 years oil drainage in there

I wanted to use steel/screw on type fittings so I don't have to worry about it again

Also got steel/AN fittings for wastegate actuator. Had an problem where the rubber lines from the wastegate to actuator touched the exhaust and cracked. I think the build is getting more solid by the day and my bank account more thin

[328iFun]

This what I was talking about. How it's not completely opened

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[328iFun]

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[vollosso]

Seems like a challenge to return there...


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[328iFun]

Seems like a challenge to return there...


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I don't think its gonna be too bad. Ill weld a 10AN straight fitting into that hole, horizontally. That way the return isn't going upwards as much and ill be able to screw the hose end on opposed to clamping it.

I'm surprised I haven't heard of other people having drainage issues using CCV considering how restricted the return is, it wouldn't take much to clog it.