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100% DEFINATIVE TURBOCHARGER PART NUMBERS 931 S1-S2 AND 951
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K-Roll931  



Joined: 08 Jul 2017
Posts: 73
Location: Southfield, MI

PostPosted: Mon Nov 04, 2019 1:17 pm    Post subject: Reply with quote

The turbo on my S1 is a K26-2664G4.10 and has the # "5326 970 6407". What exactly does that mean? I didn't see it on your list.
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Fasteddie313  



Joined: 29 Sep 2013
Posts: 2087
Location: MI

PostPosted: Mon Nov 04, 2019 2:51 pm    Post subject: Reply with quote

K-Roll931 wrote:
The turbo on my S1 is a K26-2664G4.10 and has the # "5326 970 6407". What exactly does that mean? I didn't see it on your list.


It's right there in the OP..

Fasteddie313 wrote:

931 s1

K26-2664G4.10

5326 150 0011 Bearing housing

5326 100 6329 Turbine housing

5326-120-5001
5326 120 5002 turbine Shaft and wheel
5326 120 2107 turbine Shaft and wheel
5326 120 2119 turbine Shaft and wheel

5326 151 5701 Compressor backplate

5326 123 2035 Compressor wheel
5326 123 2006 compressor wheel
5326 123 2016 Compressor wheel

5326 101 5103 Compressor housinq
5326 100 5103 Compressor housinq


The earlier US 931 turbo..

The "5326 970 6407" is like a complete turbo part number with the last number being a revision number, I think..

The S1 turbos are 5326 970 640X iirc they are not all 7s.. Probably something to do with the turbine housing revisions from flat gaskets to the metal ring gaskets or something.. But I don't really know..
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K-Roll931  



Joined: 08 Jul 2017
Posts: 73
Location: Southfield, MI

PostPosted: Mon Nov 04, 2019 3:18 pm    Post subject: Reply with quote

Fasteddie313 wrote:
K-Roll931 wrote:
The turbo on my S1 is a K26-2664G4.10 and has the # "5326 970 6407". What exactly does that mean? I didn't see it on your list.


It's right there in the OP..


The earlier US 931 turbo..

The "5326 970 6407" is like a complete turbo part number with the last number being a revision number, I think..

The S1 turbos are 5326 970 640X iirc they are not all 7s.. Probably something to do with the turbine housing revisions from flat gaskets to the metal ring gaskets or something.. But I don't really know..


My bad, I should've said I saw the K26 number, but not the part number.
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Fasteddie313  



Joined: 29 Sep 2013
Posts: 2087
Location: MI

PostPosted: Wed Nov 06, 2019 12:42 pm    Post subject: Reply with quote

Hey!!

Some of those PDF's links died in the OP but I just remembereed I uploaded them and they are still available here..

Most importantly "Borg Warner (kkk) turbo parts.pdf" is the big beast of part numbers..

https://rennlist.com/forums/944-turbo-and-turbo-s-forum/820461-100-definative-turbocharger-part-numbers-k26-6-k26-8-931s1-931s2.html#post12482037
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TJC  



Joined: 04 Apr 2010
Posts: 766
Location: Central-ish Arizona, USA

PostPosted: Sun Dec 22, 2019 3:32 am    Post subject: Reply with quote

Just a quick question.
Other than color is there any other distinction between red ID tags and blue ID tags?
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Fasteddie313  



Joined: 29 Sep 2013
Posts: 2087
Location: MI

PostPosted: Sun Dec 22, 2019 6:12 am    Post subject: Reply with quote

TJC wrote:
Just a quick question.
Other than color is there any other distinction between red ID tags and blue ID tags?


I think blue tags are factory original, or factory rebuilds, and red tags are aftermarket rebuilds..
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TJC  



Joined: 04 Apr 2010
Posts: 766
Location: Central-ish Arizona, USA

PostPosted: Sun Dec 22, 2019 6:27 am    Post subject: Reply with quote

Fasteddie313 wrote:
TJC wrote:
Just a quick question.
Other than color is there any other distinction between red ID tags and blue ID tags?


I think blue tags are factory original, or factory rebuilds, and red tags are aftermarket rebuilds..

Can you then decipher this?
Red Tag
K26-2664G4-10
84 329 4564
5326 970 6407
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'95 BMW 318i/5 ..."Pearl"
'80 Porsche 924 Turbo..."Pogo"
'81 Porsche 924 Turbo...Parting!
'87 Porsche 944 NA... "Liebchen"
'02 Porsche Boxster..."Sunbeam"

Still on the Prowl!

www.ttrs1.com
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Fasteddie313  



Joined: 29 Sep 2013
Posts: 2087
Location: MI

PostPosted: Sun Dec 22, 2019 6:35 am    Post subject: Reply with quote

TJC wrote:
Fasteddie313 wrote:
TJC wrote:
Just a quick question.
Other than color is there any other distinction between red ID tags and blue ID tags?


I think blue tags are factory original, or factory rebuilds, and red tags are aftermarket rebuilds..

Can you then decipher this?
Red Tag
K26-2664G4-10
84 329 4564
5326 970 6407


US S1 Turbo 1979-1980 , the bigger OEM one, "2664" compressor, 6407 so likely has the updated turbine housing for sealing with the metal rings instead of the old flat gaskets..
Good for 1 bar..
Red tag so it has been rebuilt by some shop..
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TJC  



Joined: 04 Apr 2010
Posts: 766
Location: Central-ish Arizona, USA

PostPosted: Sun Dec 22, 2019 6:47 am    Post subject: Reply with quote

Very interesting and thank you.
I saw that it should be a series 1 but I wanted to make sure as it came off of the '81 that I'm parting out.
Again, thank you for your confirmation!
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peterld  



Joined: 10 Dec 2006
Posts: 794
Location: Noosa Heads QLD Australia

PostPosted: Fri Nov 27, 2020 12:31 am    Post subject: Reply with quote

Fasteddie........in your long list of turbos, is there anywhere that will tell me what a 5327 101 5060 cold side compressor is?

It's large in size (barely fitting between the block and framerail) and mated to a 951 middle with a 5326 101 6365 924T hotside.

Cheers Pete
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Fasteddie313  



Joined: 29 Sep 2013
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PostPosted: Fri Nov 27, 2020 1:00 am    Post subject: Reply with quote

Compressor housing numbers are the hardest to back trace.. not many things list housing numbers..

Maybe call Borg Warner and ask?

Other than that this is the good one that was dropped from its online host..
https://rennlist.com/forums/attachments/944-turbo-and-turbo-s-forum/960234d1438640873-100-definative-turbocharger-part-numbers-k26-6-k26-8-931s1-931s2-borg-warner-kkk-turbo-parts.pdf
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peterld  



Joined: 10 Dec 2006
Posts: 794
Location: Noosa Heads QLD Australia

PostPosted: Fri Nov 27, 2020 1:22 am    Post subject: Reply with quote

Thank you for that.
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CÚdric  



Joined: 27 Aug 2004
Posts: 2024
Location: Sweden

PostPosted: Fri Nov 27, 2020 2:29 am    Post subject: Reply with quote

I have the borg warner KKK softare, i will take a look if i just remember to check it up
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CÚdric  



Joined: 27 Aug 2004
Posts: 2024
Location: Sweden

PostPosted: Fri Nov 27, 2020 2:57 am    Post subject: Reply with quote

C´┐Żdric wrote:
I have the borg warner KKK softare, i will take a look if i just remember to check it up


Seems to be some confusing reports here, are you really sure its the compressor part number?

I cant find anything in the software, however a googling came up with this: https://skif-turbo.com.ua/p592195851-vosstanovlennaya-turbina-k27.html , some of the alternative part numbers there could be found in the system.

You could easily verify it and see if the compressor wheel have outer diamter of 76mm in small diamtere of ca 45 mm. Its not as big as you think it is (flow wise) because it has a really small inlet, so it doesnt flow that much (smaller than a 951S compressor), but small inlet diameter and large wheels are the recepie for efficiency at really high boost pressure. Which this is designed for since it normally comes from different kind of trucks. ship engines, genset etc. It seems to be coming from the seventies based on the applications where it was first released, so maybe not the state of the art today

Im not sure this is compressor is the most optimum way to go, what are you gonna use it for?
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peterld  



Joined: 10 Dec 2006
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Location: Noosa Heads QLD Australia

PostPosted: Fri Nov 27, 2020 4:50 pm    Post subject: Reply with quote

This setup was made up by Majestic Turbos in the USA some 8-10 years ago.

There are no tags on it apart from casting numbers on the various housings, and yes, 5327 101 5060 is cast on the cold side housing. Hose sizes on that housing are: inlet: 70mm OD/55mm ID and outlet: 50mm OD/40mm ID.

It is currently on my car and is way more responsive than the previous 6.10.
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