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What kind of K27 is this turbo?

Hello,

A friend of mine has a K27 (he does not know wich K27), and I want to buy his turbo, but I am a little confused about what kind of K27 is.

Please, any help is welcome.

A few photos:

[img=http://img387.imageshack.us/img387/7987/placabi6.th.jpg]

[img=http://img387.imageshack.us/img387/9789/partefriaap9.th.jpg]

[img=http://img387.imageshack.us/img387/6186/partecalientehx4.th.jpg]

[img=http://img141.imageshack.us/img141/540/deladowi3.th.jpg]

[img=http://img84.imageshack.us/img84/6250/detallecaracolayg5.th.jpg]

Thank you in advance.

Gisleno Babarro.
Old 12-18-2008, 10:54 AM
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What does the blue tag on it say?? i can't make it out from your pictures, they are very blurry
Old 12-18-2008, 11:26 AM
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The blue tag contains the critical information....just copy down the info in text if you can't get a clear picture of it....it will tell you what specific model KKK this is.
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Old 12-18-2008, 11:33 AM
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Fixed it for you.


Quote:
Originally Posted by zarpoxx View Post
Hello,

A friend of mine has a K27 (he does not know wich K27), and I want to buy his turbo, but I am a little confused about what kind of K27 is.

Please, any help is welcome.

A few photos:















Thank you in advance.

Gisleno Babarro.
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Old 12-18-2008, 12:14 PM
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OFF THE BOOST PIPE NOW...
 
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What ever it is, it looks pretty well used. I'd plan on a rebuild in your budget and compare it to what a new one costs.
Old 12-18-2008, 01:19 PM
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Quote:
Originally Posted by zarpoxx View Post

Please, any help is welcome.
You really should talk to these guys:
http://www.ultimatemotorwerks.com/

Imagine Auto is also a good resource for things K27 related:
http://www.imagineauto.com/turbos.htm
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Old 12-18-2008, 03:02 PM
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Thank you for your opinions, and equality, thank you for fixed it.

The blue label says:
hp 3739
k27 DEV

Any suggestion? It is a K27 7009? or a K27 7200? Or other?

Thank you in advance.
Old 12-19-2008, 01:22 AM
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Quote:
Originally Posted by zarpoxx View Post
Thank you for your opinions, and equality, thank you for fixed it.

The blue label says:
hp 3739
k27 DEV

Any suggestion? It is a K27 7009? or a K27 7200? Or other?

Thank you in advance.
The compressor impellers are different from the 7200 and look very much like those in my old 7006...
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Last edited by rsrfan; 12-19-2008 at 06:29 AM.. Reason: more information
Old 12-19-2008, 06:29 AM
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Quote:
Originally Posted by rsrfan View Post
The compressor impellers are different from the 7200 and look very much like those in my old 7006...
there are 8 different compressor wheels that appear on the 17 different compressor housings on these k27s, and only 3 different turbine wheels (15 some-odd t3 flanged turbine housings), two of which are nearly the same in size, the third is rather small.

the best way to answer this question is to simply take the turbine housing and the compressor housings off and measure the major and minor diameters of the two wheels.
otherwise if you could just take the turbo and write down a list of ALL of the numbers/designations that appear on both housings, as well as on the label on the compressor backing plate.

i'll check back later, if you post these numbers i'll look them up in my handy little k27 book and see if i can identify the combination for you.

just so you know though, the whole [edit] 7004 vs 7006 vs 7200 thing is nothing more than a ballpark, since these three designations appeared on k27s in porsches, there are a whole lot more than 3 different k27s that appeared on other vehicles [/edit] with at least 8 compressor wheels and 3 turbine wheels, not to mention various trim housings, you could see a variety of different flow numbers/efficiencies/spool characteristics depending on the combo.

Last edited by kildea; 12-21-2008 at 02:46 PM..
Old 12-21-2008, 01:49 PM
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Ok, thank you Kildea:

Numbers: (when I write the word "diameter" means the simbol of diameter, but I canīt find it in the wordpad of my pc)

on the cold side (one side):

5327-5799
=diameter 77.8/13
5327-5798
=diameter 77.8
5327-5789
=diameter 74.3
5327-5788
=diameter 75.6/13
5327-5787
=diameter 83.8/13
5327-5785
=diameter 75.6/13
5327-5786
=diameter 88.8/13

On the other side of the cold side:

5327-101-5078

On the HOT side (one side):

52
101 6 13

On the other side

1485

Thank you in advance.

Gisleno Babarro.
Old 12-22-2008, 01:17 AM
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i'm not sure what you mean with the diameter data you posted above, the major/minor diameters should just be 2 numbers, the minor side should just be measured from any two opposite fins, or even just housing inducer inside diameter.

i was looking for the minor or small side diameter of the impeller and the major diameter, with the compressor housing off you can measure the diameter of the wheel at its base (the biggest slice) and to get the minor diameter you can just measure the inducer at its base, where the impeller is.

same with the exhaust turbine if you could measure them, with these measurements i can identify the turbo.

the compressor wheels that i have a rcord of are listed below, the basic diameter measurements on the compressor wheel should fit one of these wheels, there's a list for turbine wheels as well, but if you can post those measurements i'll find the turbine wheel measurements as well:

1. TRIMS: 3262MAA/MGB/MNA, major: 80.7mm, minor: 49.1mm, hub heights: 40.7mm or 44mm
2. TRIM: 2970N, major: 72.4mm, minor: 50.6mm
3. TRIM: 2966NV, major: 72.3mm, minor: 48.1mm
4. TRIM: 3070G, major: 75.8mm, minor: 52.5mm
5. TRIM: 3064G, major: 75.9mm, minor: 48.3mm
6. TRIM: 2963U, major: 72.3mm, minor: 43.6mm
7. TRIM: 2960U, major: 72.3mm, minor: 45.6mm
8. TRIM: 3060G, major: 75.9mm, minor: 45.6mm
Old 12-22-2008, 03:27 PM
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Finally I bought anohter turbo from Ebay. The seller said me that this turbo was from a C2 1992 turbo, but I have some Doubts.

The turbo seems ok (cold blades, hot blades, etc...) but the blue tag says:

K27-3270 GXA 11-11
92 500 1308
K27 X 1392/7256

It is a K27 7200? If not, what kind of K27 it is?

Thank you in advance.

Gisleno Babarro.
Old 02-16-2009, 02:25 AM
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Why are you buying unknown used turbos off e-bay?
You need to decide specifically what turbo you want/need first and then decide if buying unknown/used is worth possible damage to your engine.
I would not buy any used turbo with unknown history. You need to see it work on the car or trust the seller.
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Old 02-16-2009, 03:57 AM
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I bought a used turbo via ebay because I bought a new "famous" turbo and I donīt like anything (HFS).

So I want to return to the old turbo (K27 7200) at the minor price that I could get(I spent a lot of money in HFS that I donīt like how it works).

Thank you for your opinions, but I only want to know what turbo I have now.

Thank you in advance.
Old 02-16-2009, 05:59 AM
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That is a problem all right and I hate it when that happens.
Someone did not ask or answer the right questions before the sale was final. Not good for anybody.

The K27-7200 will have both "K27" on the top left of the tag and "7200" on the bottom right. If it is a stock 965 unit it will also have "11.11" on the right hand side of the middle line.

The HFS is designed for high HP 930 engines using EFI and is not recommended for CIS. Whoever you bought it from should have told you that. You may have luck selling it to someone building a big EFI engine.
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Old 02-16-2009, 04:23 PM
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Thank you very much RarlyL8 for your quick reply.

When I remove the HFS from my car, and check that the 11.11 works correctly, I will try to sell the HFS.

Regards,

Gisleno Babarro.
Old 02-17-2009, 01:09 AM
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Quote:
Originally Posted by RarlyL8 View Post

The HFS is designed for high HP 930 engines using EFI and is not recommended for CIS. Whoever you bought it from should have told you that. You may have luck selling it to someone building a big EFI engine.
Not to split hairs, but I think the HF2 is the one designed for EFI. I run the HFS on my modified CIS based car and love it.
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Old 02-17-2009, 04:13 AM
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I should not have said that the HFS is not recommended for CIS as that is not correct. It would be more accurate to say that it is recommended for highly modified engines.

If you really want to split hairs the HFS was designed as a big power replacement for the 965. It is capable of supporting 525+HP and 1.2+bar at 7000rpm. That is EFI territory.

The HF2 is a monster. Recommended for EFI engines capable of 600+HP.
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Old 02-17-2009, 06:18 PM
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