hey all, looking for some help on 2 topics actually.

1) bought a tubular exhaust manifold that is extremely well built and stout... trying to use it, not sure what brand it is?

2) because of where the exhaust manifold positions my turbo, I am having a tough time trying to figure out how to PROPERLY create and oil drain.

here are some photos:

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in this photo, you can see where there USED TO BE a plate, probably with brand name:

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any help, thoughts, ideas would be very helpful as id like to mock this up out of the car. I have only 1 45* degree fitting at the moment.... would another 45* or maybe even a 60* work???

mike

I would take all those fittings off and run a larger diameter 1" Rubber drain line. Turn it the other way and go around that engine mount bracket. I would replace that bracket also. Probably not a great Idea to CUT into that haha.

IMO those fitting neck down too tight. Looks like 1/2" inside diameter.



As for the manifold, I have no idea...almost looks like it would fit an Evo or something...not sure.

That engine mount bracket doesn't look to strong anymore cut up like that. Can you run the drain straight down under the engine mount bracket to a 45* fitting on the oil pan?

Yeah, I'm a bit worried about the bracket too. But I'm a welder, so maybe I can find a way to reinforce it.

As far as going under the mount bracket, that would leave the drain too level with the drain hole in the pan. I'd be worried about it not draining properly.

I'd be more worried about turning it right off the turbo. That may cause a restriction. To me It looks like the drain hole is still below the bracket. So make the turn just under the bracket and then slope it down into the pan.

I think you're better off having it drop straight down. and I really would use a larger diameter return line. There is a thread on here somewhere about using too small of a return for the larger turbos.

I'll give it a shot and see what happens...

As far as the drain size though, it's -10 an fittings and line. From what I've read, that should be plenty. Maybe it looks small in the pictures...

Depending on what turbo you're running 10an should be okay. IMO when it comes to oil drain you can never go too big. It helps flow the oil through the turbo. Im sure its fine. I guess it looked smaller in the pics....hahah That's what she said.

What kind of turbo is that?

read this:
http://www.dsmtuners.com/forums/turbo-system-tech/331710-garrett-holset-turbo-users-your-oil-drain-may-too-small.html

Lol.. I've actually read through that thread. That's where I got my info. Thank you though for posting that. I'll skim through it again.

It's a holder wh1c... Doesnt look like much cause it's just the bep turbine housing and center section. Internals are out to get balanced.

Pictures are really good... but being able to see it is always inevitably better. That said-

From what I can see the two options would be:

Fitting is pointing to 2o'clock currently- turn it around to 7ish o'clock and run the AN hose smoothly around the mount to the pan. Only possible problem I see is how close the hose might be to the centermember (the thing the roll stop mount bolts to) A 90* would combat the issue but a shorter style 45* would be a better choice (some brands are different lengths')

Or extend the fitting off the turbo to drop down below the mount somehow and loop the line or something along those lines.

One more solution to this problem might be selling your manifold and buying one that is more centered with less alignment issues. It's a nice looking mani tho!


I have to point out that in the link I posted Jusmx quoted the Holset Manual where it states the Oil return line should be no smaller than 19mm inside diameter....-10an is around 13-14mm inside diameter.

I personally like the SMOOTH flow of a braided rubber hose. Oil flows better through a smooth tube rather than all the connectors and fittings. This is just my opinion tho. I have to admit the AN fittings look a hell of a lot better.

Here is a pic of my return. The spring around it keeps it from kinking. The hose is a 1" inside diameter with a 3/4" ID Flange off the turbo and a 3/4" nipple welded to the oil pan. Its easy to replace and never had any leaks after 5 years!