nick951

Does anybody have the KKK K27 installed in their car? I was thinking about installing one in my '86 951 but wasn't sure about the power??? anybody know.. Here is the setup i would like to do in the car....K27, B&B exhaust, test pipe, chip, new wastegate(not sure wich one), stage 2 intercooler, stage 2 MAF, bigger hard pipes...and some odd and ends...GIve me some info on what some of you think..I want at least 340hp at the wheels, is this easly do able???????

ian

Ok, well what are your goals for this car, street or track?

Because there is the k27/6 and the 27/8 (keith asked about the 27/7, but that might be a mythical turbo). Anyway, you have to set goals of where you want your peak hp, where you want boost to come on, and there will always be compromises.

As far as power, 340 at the crank or wheels? 340 at the wheels is a big number, and you'll have to throw new injectors, and a lot of boost in the mix with a k27 to get there (easier with a 27/8, might be possible with a 27/6, we will know more when I get my car on the dyno)....

Matt Sheppard

Doable? Yes
Easily? Not in my experience

nick951

i am making this car for the street not the track. I want a quick spool up but when the boost kicks in i want it to be hard, i mean it pulls hard now, but i want it to be harder. Does the k27 pull harder than the k26? Which is better in the street application, k27/6 or k27/8???

dand86951

340rwhp from a K27/? is likely only possible with a lot of help from other mods such as MAP/MAF heads, bigger injectors and the most important ingredient, fuel with a very high octane rating. Shoot for 300 to 310rwhp and you might get there on pump gas with the other mods.

The K27/6 or K27/8 seems to depend on several factors but Tony Garcia's website seems to show that the 8 spools almost as quick as the 6 housing.

ian

27/6 is probably better for the street more usable powerband, the 27/8 will hae a good deal more lag from the larger hotside.

I just got word that I'll be on a dyno saturday (base line run) so at least you'll have an idea where you can start with a 27/6

christian

OK, I finally have my K 27/6 with light weight bearings (powerhaus) for sale. Ran perfect before it got replaced. First USD 850 plus shipping takes it.

Paul Bloomberg

nick951,
I have had both turbos on my 951 and between the K27/6 and K27/8 I would go with the K27#8. Yes, even on the street...although I am sure you don't want more power to street race I can see it now "Hey Mustang dude can we keep racing from 2700RPM to 3500RPM cause I have no lag" or if your in the upper RPM ranges w/K27#8 you have 20-30 more WHP which is where you will be if you are trying to go fast. I don't get into my boost in rush hr traffic so for me it is not a issue. If I remember correctly I picked up quite a bit up top. I think 340WHP is optimistic on pump gas and if you haven't bought the B&B, although very high quality, when Technodyne put on thier turbo we found the stock muffler w/test pipe produced more power. (400WHP)
<a href="http://pages.prodigy.net/pjbloom1" target="_blank">http://pages.prodigy.net/pjbloom1</a>
Paul

nick951

Paul. thanks for the info. So you think with stock internals and a k27#8 would do the trick for getting 340hp or some what less than that? Or would i have to do some other work..Let me know???

Perry 951

On paper, going off what Paul ran with his setup, and making a few changes, I should hit 330 rwhp at 18psi.

Here is what I am running:
Fresh Motor
K27/8
Thermotec Wrapped exhaust, high flow cat, B&B Carbon Fibre cat back, deltagate
47mm MAF/ARC 2/Custom K27 chips
Adjustible Regulator with #55's
Hardpipes and possibly water injection

340? Not without stand alone management and a big intercooler.

Mine will be a nice day driver, and a track star now and then. (The driver may take a little time)

Cheers!

white 944 turbo

I had both k27/8 and #6 and can tell you not to waste your time with the #6. The lag you have with the #8 is not much more than the #6 but the power differece is substantial. The KKK already has alot of back pressure and the #6 is just rediculous.

Jaxon

I agree with the comments on the K27/8. Great Turbo for the street and the lag isn't significant...at least on mine. My configuration is similar to Perry 951's only I have a Tial 46mm wastegate. My K27/8 is a Garrett. Where are you located...maybe you can drive one and judge for yourself.

By the way. I've also had a K28/8 on my 951. The lag was to much for my taste. But the boost was huge when it kicked in.

Regards

Andy

I have a K27/6 on my car and it's a good turbo for the street, the 8 would probably be fine also. Without alot of work the 6 will be limited to about 300-310hp. The 8 will get you more hp but the torque won't be much different. 2 years ago my car dynoed 300 ft-lbs and 282 hp with rich APE chips. I've since replaced the head and pipes and want to go to the dyno again, then I'll try to get some custom chips from Danno. Regardless, in it's current form, I've run even with a Z06 Corvette from 20-120mph and I've pulled a carlength 0-60 on a 996. That's pretty sweet for a daily driver.

My 2 cents of opinion is if you don't have LSD, spend your money and put it in, 300+ ft-lbs of torque won't get you anywhere fast without it.

Good luck.

Paul Bloomberg

Nick951,
I am not a tuner just a end user. Based on my experience with my car I think that 340WHP with the K27#8 would be optimistic even with race gas.
I would call someone who does it for a living when you are ready to spend some $$$$ to get it done right or at least to buy the correct "package" for your needs.
Paul

Waterguy

Does anyone have any Dynojet dyno charts for a K27 #6 or #8? I recall seeing one posted by Soloracer, but it was on a Mustang dyno, and the mixture was very rich (10 to 1), so it probably left some horsepower on the table. There are good curves available for the K26#6 and #8 at both stock boost and 15 psi.