Tripster

I am posting 2 pic's but you can't read the numbers so I will list it as it is on the Turbo Plate.

K27
ALT NR 94 034 2704
AUSF NR 5327 970 7006

I am trying to post pic's but it will not upload. I will try again later.

Tripster

It also has KKK engraved in the housing. Is this a standard K27 or maybe a upgrade? Any input would be great.

Tripster

Blurry pic's

OSI930

It looks like a K27 7006, which was the turbo used on the early 90's turbos.

SoCal Mike

Yup, 7006. This turbo was a popular K27 model back in the day, along with it's big brother k29. I've read that in the late 80's Porsche used this turbo on some of its euro 930 se models.

OSI930, the stock turbo for early 90's turbos (c2) was the k27-7200.

The 7006 doesn't spool as quickly as the 7200, but it doesn't run out of breath like the 7200 does around 5K. There are however much better turbos available from PorschePhd and Kevin at Ultimate. I've got a 7006 that's due to be replaced soon

pzull

[QUOTE=SoCal Mike]

The 7006 doesn't spool as quickly as the 7200, but it doesn't run out of breath like the 7200 does around 5K.[QUOTE]

When you say it runs out of breath, do you mean you see a drop in the actual boost numbers beyond 5K? I never noticed that in my old turbo. The new hybrid one is even better but the boost seems a bit wasted cos i hear it leaking out loudly all the way to red line once full 0.9 boost is reached. (kept mine below 1bar for longeavity)

Tripster

It sounds like this Turbo may be a plus for the set up am doing.
I could tell that the turbo came on a little late but made allot of power mid to high rpm. Yesterday I call John and ordered a set of SC330 Cams which sounds to me will be perfect for this motor. I am looking for 400 Crank HP somewhere down the near road and I think the cams will be a HUGH plus. I still have to call stephen and order the B&b headers.
Opinions on HP for my set up? I think maybe 370 Crank
K27 -7006
Mild Head work
SC330 Cams
Euro Fuel head and injectors
B&B Headers
Free flowing Magnaflow

Kevin

That is the K27-7006..

Over the 4th, I took some time to take off my Hyflow and headers and put on the factory exhaust to dyno test a handful of turbo's back to back... I have never seen this done on one car with one dyno, at one given session.. The results have been Very interesting... I will post the dyno sheets in another thread.. I haven't done the hybrid units yet..

Here are some number at a glance.. And just looking at the number don't tell what is really happening..

Car is my '92 965
Wastegate is the Tial 46
Factory 965 IC with 4000CFM fan with water cooling..
I'm using a factory exhaust, rebuilt with new gaskets, and hardware..
I am using a full flow single entry exhaust..
For the Dyno I am using my DynaPack 4000

All turbocharges were rebuilt to NEW specs..

3LDZ yielded 310HP and 362 ft lbs the curve went straight up and came straight down..

K27-7006 yielded 321HP and 363ft lbs of Torque, this unit came on 300-350 RPM later than the other units..

K27-7200 yielded 327HP and 365ft lbs of Torque. One interesting thing about this unit is that it went up faster and built more power under the curve, but it MATCHED the rate of decline that the 7006 had RPM for RPM.. The engine also sounded more alive with the 7200, it was more sluggish with the 7006..

The 7200 compressor wheel is larger than any of the other wheels, and more efficient.

Win Rice

Kevin,

What max boost were these tests run at? Stock engine internals?

It'll be interesting to see what results you get from the 'S' and 'HFS'.

Win

rsrfan

Subscribed. I currently run a 7006 and am looking to upgrade to a HFS soon

Tripster

I would think for you to get the best results from any type Turbo you would need to dyno it with a set of Cams that would bring out the best it each of them. Stock Cams may not allow the 7006 to reach it's potential. From what I read off Stephen's site is the K27 7200 is great for a stock 3.3 and the K27 7006 if a good turbo for a mild 3.3. I will paste the quote off that site and am very open still to change my mods if need be.

K27 7200 - OEM on the C2T and known for quick spooling. Considered the perfect factory upgrade. Reliable and proven to bring 35HP. This turbo has been proven on paper to lower 2-6K RPM spool times by a second and a half.

K27 7006 - Originally the only upgrade considered for the 911 Turbo/930 this turbo is a direct bolt-on like the 7200. Its biggest benefit is providing a power band slightly higher than the 7200. Perfect for CIS systems that are near stock and require upper RPM range

Tripster

Lets talk about this while my engine is out and under going a few changes. Im still a newby and I want / need to learn.

Kevin

The stock 7006 is a dog.. When you look at the maps, you have Garrett tuners using this wheel to kill KKK supporters.. Things change with the 7006 when you turn it into the Hyflow spec turbocharger.. With cams or without cams the 7006 will taper off because the wheel loses the ability to generate boost efficiently.. You can't help this fact.. Yes, you will generate more torque and HP but you will with the same 7200.. The powerband is LESS than the 7200 running at 1bar.. I will post the dyno sheets. The 7200 trailed off exactly the same way that the 7006 did. I was expecting the 7006 to fall off a little later, but it's the same..

Win, I used the two Tial springs together to net 1bar.. Interesting enough the 3LDZ and 7006 could not maintain the 1bar level..

Don't get me wrong.. The 7006 is a bullet proof turbocharger.. It just needs the larger Hyflow compressor wheel.. However, it is a very expensive turbocharger these days. Parts are very hard to find.. In short the 7200 is easier and a newer design..

SoCal Mike

Nice Job Kevin, It's hard to believe it's taken someone 10-15 yrs to tackle this "Consumer Reports" testing. Bravo! I've spent 10 years trying to decipher k27 descriptions or trying to remember how my car felt with the 3LDZ versus the K27-7006 or the used 7200 I bought. My seat of the pants had me back to the 7006. I'm really looking forward to the Hybrid results as I've really been on the fence as to which to choose. Thank you for your efforts.

Olli

I second this statement! I am about to put my new K27 HFS in (once I receive my new B&B headers) and therefore am also very interested in this information. Looking forward to seeing the results. Thank you for doing this Kevin!