924Board.org

peterld · Posted: Tue Dec 04, 2012 1:07 am Post subject: Reaching out to 951 owners.

Help needed from anyone who may possess a 951.
You may be aware a number of people on the board are experimenting with running the 951 turbo coldside and intermediate, married to a 931 hotside to form a hybrid turbo installation.
I've progressed to the point of motor and turbo installation but have hit a snag. The 951 intermediate has drilled and tapped fittings on the sides (one on the left, and two on the right) which take water lines and I believe a breather.
I have never seen a 951 up close, nor do I have access to one.

What I would dearly love to see are some pictures of the 951 turbo installation, to see where the lines route to. The 951 PET is hopeless in this regard. My gut feeling is that the single fitting on the left is the inlet, and the top fitting of the two on the right is the outlet.
Can any 951 owner confirm this? and where does the third fitting hook up to?

If perchance you are aware of the thread sizes of the fittings, that would be a huge bonus.

Cheers
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80/81 932/8 ROW

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

Ugh, it has been a year since I had the turbo out on mine, rennlist or clarks would be a good place to ask. I dont remember a breather, I remember oil in and oil out, water in and water out. I also remember that due to some rusted bolts it was 2 days in coming out. Im thinking that the side that has two holes has a plug in the lower and a banjo in the upper and the other side has a j pipe screwed into it. Top and bottom are oil in and oil out. Dont quote me on that as I am speaking from a foggy memory.
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87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

peterld · Posted: Wed Dec 05, 2012 12:17 pm Post subject:

Thanks Joe.....that's kind of how I envisaged it. So the bung must come from the factory? Curious.

A photo of a 951 turbo 'insitu' would suffice....if anybody can snap a piccie of their engine bay. I've never looked in the engine bay of a 951! Never been that close!

Cheers
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80/81 932/8 ROW

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

peterld · Posted: Wed Dec 05, 2012 6:29 pm Post subject:

Wow. That's a thing!
Thanks for the piccie. Excuse my ignorance, but when you say left side, do you mean the left side, looking at the piccie, or the LHS of the vehicle.

When mounted in a 931, in the original turbo position, and to utilise existing oil lines, which is oil IN at the top, and oil OUT at the bottom (to sump), the orientation of the intermediate is such that the single fitting is on the LHS of the intermediate, closest to the block, while the two fittings are on the RHS of the intermediate, facing the RHS frame rail.
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80/81 932/8 ROW

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

I was using left and right in reference to the picture...

Left is closest to the block in my description.

Hope that helps!
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'84 944 -White, Brown interior
'84 944 -Red, Automatic
'86 944 -Garnet, Fully loaded, Koni suspension
'87 924S -Red, 300hp 951 swap
'87 924S -Red, Project Car
'88 924S -Red, Daily Driver

peterld · Posted: Wed Dec 05, 2012 7:09 pm Post subject:

Thank you, thank you! That's great news.
So orientation on the 951 is identical to how it sits on the 931, albeit on the other side of the block. Now I need to figure out the size of the ports and find fittings. Crucially I now know which port is blocked.
Thank you again for all your efforts guys.

Cheers

*Incidentally, is that your motor? So nice and neat.....are the fittings anodised?
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80/81 932/8 ROW

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

Great! I hope it works out.

peterld · Posted: Thu Dec 06, 2012 10:18 pm Post subject:

Wow! That is bling! Love to see neat, clean, well maintained mechanicals.

So did you buy a front cut, or have you '951ised' the rest of the car as well? In any event, what a perfect sleeper! I just love it.

More piccies!!!!
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80/81 932/8 ROW

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

peterld · Posted: Mon Dec 10, 2012 12:02 am Post subject:

Thank you again Ed. I'll get a bolt in M16 x 1.25 and try it for size.
That's an interesting photo just prior to the installation of the turbo, showing the placement of the banjo bolt. For my application I figure I'll need two of those, one for each side, due to restricted space. Next stop USA Ebay to acquire those. Thanks for the great pictures.

Somehow I missed the posts on your engine swap....what a huge undertaking....my hat off to you Sir! Not a job for the faint-hearted, particularly in the interface of 924S to 951 wiring.

Can't help but be mightily impressed with your engine bay....so clean and neat. Has the engine bay itself been repainted......hard to believe Guards Red can be so shiny after 20+ years of use!

As I said...great work. Love it.
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80/81 932/8 ROW

peterld · Posted: Mon Dec 10, 2012 9:51 pm Post subject:

Firstly, I can now confirm that the threaded fittings on the sides of the intermediate are M16 x 1.5. Bought the shortest bolts I could and tomorrow will have them machined to plug size, so that I can at least run up the new motor.
Still endeavouring to procur two of the banjo fittings used on the passenger side of the 951 application so that I can run water cooling through the turbo as intended. Due to severe space limitations I will have to run the inlet hose under the turbo, and then up via the banjo arrangement. The outlet can run either over or under the turbo, again via the banjo arrangement.

On closer inspection (with my strongest pair of glasses) I do indeed notice you have repainted the engine bay.

Thanks again for all your help fellas! Oh, and if anybody happens to have a water outlet banjo bolt and line lying around, I'm all for it.

Cheers Pete
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80/81 932/8 ROW

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

peterld · Posted: Tue Dec 11, 2012 9:05 pm Post subject:

Banjo fittings found and ordered, thanks to eBay. Things are happening.
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80/81 932/8 ROW

Nobbi · Joined: 24 Aug 2006 Posts: 1398 Location: Germany

Everything looks nice and clean,but please spend 85.- bucks for a new coolant reservoir...TXs

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NA 924 - april/1977- 4-speed-audi gearbox.
500.000 km with fun.....and new toy:Porsche 944 S2 Cabriolet.Other car Daimler c-class cabby,brandnew..Plus : DEUTZ 4005 tractor Built 1967