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+--- Thread: OM617.912 turbo selection (/showthread.php?tid=6485)
OM617.912 turbo selection - NZScott - 05-04-2015
Ok, so since my .952 burns oil like no tomorrow, and I still have my old NA .912, I've decided to swap the turbo manifolds and what not onto it and put it in my '78.
However, one theory of mine is the stock T3 may be causing my oil drinking problem...so looking at other non VGT/VNT modern alternatives.
Had in mind a GT2860RS with a .48 A/R T3 turbine housing... how would it spool? Looking more for lower end than top.
Cheers
RE: OM617.912 turbo selection - 240Steez - 05-27-2015
I'd like to know this too. I've had a 617.912 sitting in a barn for a few months now and I'm finally researching what I can do with it.
RE: OM617.912 turbo selection - NZScott - 05-27-2015
Could always chuck on a HX40
https://www.youtube.com/watch?v=XbsAH61gG5Q
But I want something that spools ridiculously quick, ie ball bearing...turbonetics have ceramic BB T3s...just no internal wastegate that I can see
RE: OM617.912 turbo selection - kmaser - 05-28-2015
How about an Holset HE221W?
RE: OM617.912 turbo selection - NZScott - 05-29-2015
That may end up being the best choice in the end...considering the price of anything with ball bearing cartridges
RE: OM617.912 turbo selection - MFSuper90 - 05-29-2015
The only thing about a he221 is they are t25 flange. So you'll have to adapt, but that's not a huge deal.
RE: OM617.912 turbo selection - NZScott - 06-19-2015
Yes, and most of the small GT series are as well...
Are all Garrett T3 turbine housings interchangeable? Wonder if I can swap a T3 ball bearing CHRA onto the stock setup. Means I don't have to touch the exhaust side adaptor wise etc
RE: OM617.912 turbo selection - atypicalguy - 06-21-2015
(06-19-2015, 01:34 AM)NZScott Yes, and most of the small GT series are as well...
Are all Garrett T3 turbine housings interchangeable? Wonder if I can swap a T3 ball bearing CHRA onto the stock setup. Means I don't have to touch the exhaust side adaptor wise etc
That would certainly save some work. You probably need a good turbo shop to tell you the answer though.
RE: OM617.912 turbo selection - NZScott - 06-22-2015
Did a bit more digging..
The CHRAs available all have stage III turbine wheels. What does that mean? Well it basically means I'd have to get the stock MB housing machined to accept a bigger wheel. May as well just get a whole new turbo...
RE: OM617.912 turbo selection - atypicalguy - 06-22-2015
If your car was not a turbo then yes get a new turbo. Machining a factory housing on a factory turbo motor however to take different internals would allow you to use the same oil supply, oil drain, 8 take and exhaust connections, which saves a ton of time and effort. The manifolds are not great but you could certainly run more fuel and boost through them.
RE: OM617.912 turbo selection - Simpler=Better - 06-22-2015
Find a good old fashioned radiator shop. They will be key in brazing up oil lines for you.
After that, slap on anything that fits.
RE: OM617.912 turbo selection - carlitosgy6 - 06-22-2015
(06-22-2015, 02:44 AM)NZScott Did a bit more digging..plus the stock t3 garret uses a bigger impeller on the exducer but the inducer is the same as a regular t3
The CHRAs available all have stage III turbine wheels. What does that mean? Well it basically means I'd have to get the stock MB housing machined to accept a bigger wheel. May as well just get a whole new turbo...
![[Image: 5-turbine-trim.jpg]](http://www.evans-tuning.com/images/support/tech-articles/compressors-turbines-explained/5-turbine-trim.jpg)
RE: OM617.912 turbo selection - Booster - 06-23-2015
Sorry I might have missed this but, if the turbo is the issue and you have to replace it anyway.
Why on earth are swapping in the na engine? Surely just swap out the turbo?
RE: OM617.912 turbo selection - NZScott - 06-24-2015
Cheers for the turbine info. Rather hard to find otherwise.
I might be able to get away without brazing but will have to see what I can do...
Basically I found another car, a 1977 280 which is in real good nick, leather interior and all. It's going to be a project while I use my current car as a DD. The .952 will go into it as it is the better engine, and I hope to superturbo it like in my sig.
The 5 speed van gearbox won't take oodles of torque so it can stay in the '78, but match up to the NA engine it had. But seeing that I'd make custom manifolds to the superturbo project, may as well turbo the NA engine.
Clear as mud?
RE: OM617.912 turbo selection - NZScott - 07-22-2015
How about an HE211W? Too small?
Really annoying having to top up the oil all the time so I need to get my arse into gear and order things
RE: OM617.912 turbo selection - MFSuper90 - 07-23-2015
I think an he211 would be awesome spooling turbo, but you have to adapt it to the manifold, it's a different flange.
RE: OM617.912 turbo selection - NZScott - 07-24-2015
Yea. Been thinking I could fab my own adaptor up, and put an angle or offset on it so it lets the turbo clear the NA intake with the longer runners (seeing I won't be using that for the other car), about time I learnt to weld!
RE: OM617.912 turbo selection - atypicalguy - 07-24-2015
The 211 is no longer made but I suppose you could find one used. The he200wg is still available new though. Same but cast wheel.
RE: OM617.912 turbo selection - atypicalguy - 07-24-2015
That adaptor would be hard. The inner fender is right there so you want to go up, but the NA intake will not let you.a W115 intake or the turbo intake would be fine.
RE: OM617.912 turbo selection - atypicalguy - 07-24-2015
You can buy a cast adapter for about 25 usd.
RE: OM617.912 turbo selection - NZScott - 07-24-2015
Eurotrash have a 211 for $500, might go for that. But I notice the 211's have their own weird exhaust outlet...nothing's simple is it
I may end up buying one yet. How big are these turbos? Can't be much bigger than the stock T3 surely...which would clear a .912 intake? I'm gonna use a W115 intake for the twincharge build when I get around to that, was trying to save some dough and use the intake already on the engine
RE: OM617.912 turbo selection - Torkey - 07-25-2015
What about an HX30W? Same exhuast flange and oil connections are the same.
RE: OM617.912 turbo selection - NZScott - 07-25-2015
(07-25-2015, 12:22 AM)Torkey What about an HX30W? Same exhuast flange and oil connections are the same.
Lag mainly - only after about 130-150hp so trying to get away with a small turbo as I don't want to go VNT. Also trying to fit it under the NA intake manifold if possible. But it's worth looking into as I'm on a budget
RE: OM617.912 turbo selection - atypicalguy - 07-25-2015
I can tell you where to get an e,hast flange for that. It is a four bolt.
RE: OM617.912 turbo selection - NZScott - 07-25-2015
Aha - would it match up to the stock downpipe? Eurotrash have a downward pointing one
RE: OM617.912 turbo selection - atypicalguy - 07-26-2015
(07-25-2015, 07:42 PM)NZScott Aha - would it match up to the stock downpipe? Eurotrash have a downward pointing one
No turbo will be a perfect fit. You get a vband and then weld an adapter pipe with the downpipe flange on one end and the vband on the other to attach to the flange vband. But it is just a straight adapter not a 90 degree one.
RE: OM617.912 turbo selection - NZScott - 07-31-2015
Hmmmmmm. Was hoping there was a flange with the same v band size as the stock T3 outlet and rig it up that way
RE: OM617.912 turbo selection - carlitosgy6 - 08-01-2015
![[Image: 20150417_191222_zpsuy199yml.jpg]](http://i278.photobucket.com/albums/kk105/carlitosgy6/Mobile%20Uploads/20150417_191222_zpsuy199yml.jpg)
this is the way i did it to use the na intake,i cant use the top inlet cause my hood is low,works good
RE: OM617.912 turbo selection - carlitosgy6 - 08-01-2015
![[Image: 20150417_191340_zpsud3ihgvi.jpg]](http://i278.photobucket.com/albums/kk105/carlitosgy6/Mobile%20Uploads/20150417_191340_zpsud3ihgvi.jpg)
RE: OM617.912 turbo selection - NZScott - 08-01-2015
Oh neat! That's a cool way.
Just bought a HE200WG / HE211W from Alcaid so when it arrives I can start measuring clearances etc. Will probably start a new thread.
RE: OM617.912 turbo selection - NZScott - 08-18-2015
Turbo arrived yesterday which was much earlier than I expected, thanks Alcaid! Outlet flange probably not far away.
What a sexy wee thing
![[Image: 11889582_941690449205395_1380520444928860381_n.jpg]](http://s215.photobucket.com/user/Yak52fan/media/11889582_941690449205395_1380520444928860381_n.jpg.html)
And with that, I'll start a new thread. Thanks to all!