924Board.org

[ideola]

944 Turbo = 951. I was being generic.
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erstwhile owner of just about every 924 variant ever made

[gegge]

I just got a brand new K26/8 from a Porsche 951 with the same bearing house. According to the Russian website it use the same axle and my plan it to see if it is possible to relace tho turbine housing. I will let you know if if fits.
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Carl Fredrik Torkildsen

924 turbo -81 Carrera GT RESTOMOD
924 turbo -80 Dolomite De Luxe
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black turbo with Fuchs

[Rasta Monsta]

I wouldn't jump on this bandwagon until Dan has the prototype successfully plumbed and running. It will take quite a bit of engineering to reach d.d. reliability, IMO.
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[ideola]

[Rasta Monsta]

I simply think that getting the water cooled portion of the unit working reliably is going to take some work.

As for the sig, those to whom it pertains will know my meaning upon reading it.
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[gegge]

Good news!

I do confirm that a K26/8 from a Porsche 944 Turbo S fits bolt on. Only thing you have to do is to remove the #8 turbine housing and exchange it for your 931 hotside. I have measured the turbine wheel and turbine housing and they match! I do recomend using a 931 #6 hot side.

The "hybrid" is good for 300 hp and you get an instant 10-20 hp. The reason is becauce the turbo is now working with 75% efficiency instead of 60%.

As a bonus you get the option to watercool as well.

The easiest DIY hybrid ever!!!
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Carl Fredrik Torkildsen

924 turbo -81 Carrera GT RESTOMOD
924 turbo -80 Dolomite De Luxe
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black turbo with Fuchs

[morghen]

[Mike924]

Hey, Morghen, you thinking dropping one in your machine?

I thought you were getting rid of it...?
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1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org

[ideola]

[morghen]

[Rasta Monsta]

Fine, I'm sure everything will work out just perfectly on your first attempt.
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[tuurbo]

Blaze that trail Ideola! There's no other way to find out than to just do the actual install and see where it takes you.

I was thinking I'd like this water cooled feature on my soon-to-be-rebuilt turbo primarily because I want a cooler operating unit - it should result in better flow. It always kind of pissed me off too that our turbo was always hot on shut down and the 944 turbo was appropriately cool.

The worry I have about the plumbing is making sure there's enough room down there to work on the thing - getting it in and out without fanfare, and coolant all over my face, because on this next install, my budget and my pride are telling me it's going to be me doing it, and not the garage. Damn!


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1980 924 turbo, MSD, Meth. Inj, otherwise stock.

[ideola]

tuurbo,
While I don't have my engine in the car, looking at the orientation of the bearing housing and the water fittings, it really doesn't appear that it will complicate things that much.

I'm still evaluating what type of connector to go with on the "back" side of the bearing housing, the one that will end up "underneath" the bracket that bolts onto the block. Due to the angle of the block, accessibility should be fairly decent (all things considered), and there is plenty of room even for an elbow, based on my test fits on the engine stand.

The other alternative is a banjo style fitting. I may try to source some used 951 lines (if I can find 'em cheap) just to see if they might be adaptable. Otherwise, I'll probably just go with standard AN style adapters and fittings. TBD.

I have other priorities right now (#1 is getting the rotating assembly balanced so I can start assembly, and #2 is getting the head work done). I'll circle back around to the turbo once the engine is together, but I seriously cannot see what all the fuss is about. It's literally two tees, two lines, a pump and a relay. It's certainly nowhere near as complicated as a meth injection kit or L2A intercooler...I'd say it's not even as complicated than the preluber I installed on the 941, and I got that right the first time.
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erstwhile owner of just about every 924 variant ever made

[tuurbo]

Well that's excellent - I only brought up that point because I've never seen how the 951 unit hooks up or how much junk there is down there - I just know ours is tight - but what you say sounds good to me - I'm probably going to give it a try if the budget can take it.

The methanol injection wasn't all that bad in terms of complexity - the pump and solenoid gets triggered by a pressure switch - but I see your point - in your case it's a switch just the same turning on (or off) the pump or the pump runs continuously - either way, shouldn't be too complicated. Besides, if they can do it with the 951 it oughtta be possible here.

So in those pictures you gave, had the coatings been done at that stage? I forget what I read! (old age)
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1980 924 turbo, MSD, Meth. Inj, otherwise stock.

[ideola]