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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Thu May 22, 2008 3:12 am Post subject: |
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Update: talked to John on Monday 19 May, and the turbine housing, j-pipe, and exhaust mani are on their way to the coaters (black ceramic). Rest of turbo is assembled, and awaiting the other bits to be completed. Should have it before the end of the month
Regarding the water-cooled bearing housing, see related thread. _________________ erstwhile owner of just about every 924 variant ever made |
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Rasta Monsta
Joined: 12 Jul 2006 Posts: 11724 Location: PacNW
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Posted: Thu May 22, 2008 3:15 am Post subject: |
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What temp coating did you get? Are you adding a flex joint to the j-pipe?
Methinks I'm doing mine in red!
rasta
P.S. Dan, your boss must be a slacker like mine. . . _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Thu May 22, 2008 3:45 am Post subject: |
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Rasta Monsta wrote: | What temp coating did you get? |
Didn't think to ask but I suspect that John knows what to specify since he does LOTS of turbos.
Rasta Monsta wrote: | Are you adding a flex joint to the j-pipe? |
I wanted to, but just ran out of time and immediate funds. Didn't want to delay this part of the project yet again, so I'm going to go with the stock setup for now. If I get my hands on another j-pipe between now and when the engine goes in the car, that will definitely still be on my wish list.
Rasta Monsta wrote: | Methinks I'm doing mine in red! |
John's supplier only offered black or silver. I've read complaints elsewhere that the silver has a tendency to "cloud" up, and anyway, since these components will all be difficult to see once in the car, black was fine with me.
Rasta Monsta wrote: | P.S. Dan, your boss must be a slacker like mine. . . |
Heh, leaving for vacation today, plus I spend all my time on the 'puter / 'net unless I'm on a plane or in front of an audience, so it's easy to "multi-task" and still be productive _________________ erstwhile owner of just about every 924 variant ever made |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Fri Jun 06, 2008 7:15 am Post subject: |
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WATER COOLED HYBRID TURBO HAS ARRIVED!!!!!!!!!!!!! WoooooooooHooooooooooo!!!!
Here's the pix...I'll come back later and post the part numbers. (Click pix for larger images).
Ceramic-coated exhaust manifold (series II)
Ceramic-coated J-Pipe
_________________ erstwhile owner of just about every 924 variant ever made
Last edited by ideola on Sat Jul 18, 2009 2:23 am; edited 2 times in total |
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Rasta Monsta
Joined: 12 Jul 2006 Posts: 11724 Location: PacNW
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Posted: Fri Jun 06, 2008 7:29 am Post subject: |
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But of course you mean ceramic coated, not powder coated. _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Fri Jun 06, 2008 7:37 am Post subject: |
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Rasta Monsta wrote: | But of course you mean ceramic coated, not powder coated. |
Oops Yes, I meant ceramic, not powder. _________________ erstwhile owner of just about every 924 variant ever made |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Fri Jun 06, 2008 7:38 am Post subject: |
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Here are the components:
Stock 931 Turbine housing, shaft & wheel
Stock 944 K26 water-cooled bearing housing
K27 compressor housing (5327-101-5079)
- machined to accommodate wheel
- 2" outlet / 2.75" inlet
K27 compressor wheel (5327 123 2314)
Total cost:
- Rebuild: $335
- New compressor wheel: $125
- Bearing housing trade: $65
- Compressor housing trade & machining: $140
Total cost from Majestic: $665
(not including ceramic coating and shipping) _________________ erstwhile owner of just about every 924 variant ever made
Last edited by ideola on Fri Aug 01, 2008 1:08 pm; edited 1 time in total |
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Rasta Monsta
Joined: 12 Jul 2006 Posts: 11724 Location: PacNW
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Posted: Fri Jun 06, 2008 7:47 am Post subject: |
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Very anxious to see what you do with the water supply. It is freakin hot where that inlet is. . .you'll need to find a way to shield the bearing housing and H20 inlet fitting. _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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gegge
Joined: 27 Jul 2007 Posts: 1124 Location: Sweden
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Posted: Mon Jul 28, 2008 7:39 pm Post subject: |
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Do you have the measurements for the K27 compressor wheel? Looking for inducer and exducer diameters. _________________ 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 |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Wed Jul 30, 2008 4:40 am Post subject: |
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gegge wrote: | Do you have the measurements for the K27 compressor wheel? Looking for inducer and exducer diameters. |
No, I don't have the measurements. I have reason to call John on some other business, so I will ask him again for the part number to the compressor wheel he installed to see if it sheds any light. _________________ erstwhile owner of just about every 924 variant ever made |
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gegge
Joined: 27 Jul 2007 Posts: 1124 Location: Sweden
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Posted: Wed Jul 30, 2008 5:40 pm Post subject: |
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Ok, the reason why I ask you is that my own hybrid K27/K26 got a 3064 compressor wheel and I would like to compare it with yours.
I am only aiming for 250 hp @ 15 psi and is curious if it is too large. It got the same inducer dimater as Porsche 944 S but much larger exducer for high boost applications. According to my calculations is max power just in the efficency sweetspot @ 75%. _________________ 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 |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Fri Aug 01, 2008 1:10 pm Post subject: |
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gegge wrote: | Do you have the measurements for the K27 compressor wheel? Looking for inducer and exducer diameters. |
I'm a little squeamish about tearing open the turbo...don't know if this will help or not, but I finally got the part number from Majestic today: 5327 123 2314
It is the same compressor wheel used in the 964 / 930 (3.3L turbo producing 320HP in stock form). _________________ erstwhile owner of just about every 924 variant ever made |
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gegge
Joined: 27 Jul 2007 Posts: 1124 Location: Sweden
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Posted: Fri Aug 01, 2008 9:04 pm Post subject: |
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Thanks! A K27-3072GD compressor then.
_________________ 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 |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Sat Aug 02, 2008 4:41 am Post subject: |
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gegge wrote: | Thanks! A K27-3072GD compressor then. |
Yes, that's right...
So, even as high as 21 psi of boost, I'll still be well within the 75% efficiency range of the compressor (21 psi of boost calculates to a pressure ratio of 2.43, and a flow requirement of .255 m^3/sec). I'm hoping to be a bit lower on the boost range, more like <17 psi (PR of 2.16 and flow of .227 m^3/sec), which puts me right in the sweet spot of this compressor (77% efficiency), with plenty of headroom. _________________ erstwhile owner of just about every 924 variant ever made |
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Fasteddie313
Joined: 29 Sep 2013 Posts: 2596 Location: MI
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Posted: Tue Jan 24, 2017 3:48 am Post subject: |
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ideola wrote: | Here are the components:
Stock 931 Turbine housing, shaft & wheel
Stock 944 K26 water-cooled bearing housing
K27 compressor housing (5327-101-5079)
- machined to accommodate wheel
- 2" outlet / 2.75" inlet
K27 compressor wheel (5327 123 2314)
Total cost:
- Rebuild: $335
- New compressor wheel: $125
- Bearing housing trade: $65
- Compressor housing trade & machining: $140
Total cost from Majestic: $665
(not including ceramic coating and shipping) |
ideola wrote: |
It is the same compressor wheel used in the 964 / 930 (3.3L turbo producing 320HP in stock form). |
Doing some research..
The k27 7200 is the OEM turbo used on the 964 911 turbo, it is also the turbo that is the "upgrade" version for all previous 911 turbo's, and the compressor of choice for the 951 guys..
That K27 is what your compressor wheel is from.. They (the wheel) are pretty readily available for like $70 and can be had in a few billet varieties for further upgrading..
You can buy the whole k27 7200 from borg warner brand new for $1300+ depending on where you get it, and the wheels, and backplate, but I haven't found just the compressor housing..
It seems the hard part of that compressor to come by is the compressor housing, which makes a lot of sense you having your housing bored to accommodate the 7200 compressor..
They are known as "the 7200" and to be pretty much the best big boost kkk turbos available.. Good wheel choice and you should have some billet aftermarket options to fit that too.. 5327-970-7200 _________________ 80 Turbo - Slightly Modified |
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