blown 944

27-8 I can agree with, with the exception of that much power at 16 psi. I wonder whether it is a 2.8L.

Josh (rogue), take a look at the BSFC in the link you provided. IMO it should be ~ .55 -.60

All I can say is that I have raced my car with the k-26 maxxed out (WG valve clamped off,_max boost_) and it only netted 280 rwhp @ 105 mph (actual). From what I have found the actual hp is down from most dynos so there is a little leeway there, but I can't believe 50 hp.

again it is all moot if you are happy with the car. I would be happy with it myself.

Not trying to argue any points. Just being rational to what I have witnessed.

Jeremy Himsel

Yeah something about those numbers aren't right. Here's the K26 & K27 compressor maps.

JC951

I emailed the place that I got it dyno'd at as well as the place that it was built at to see if they could remember anything. I wish i lived closer to all you guys so maybe you could check it out and see what you think. Wont have time till Sunday to do anything with the car unless i give up a friday night and just start taking the pipes off to get at the turbo...but anyways just gotta wait for the emails to come back i guess

Josh B

Hey Jeremy - I've never had any luck reading those turbo graphs - is there a cliff notes explanation somewhere?

V2Rocket

that crank would make it a 2.8L but it would need different pistons and/or rods to work..

porshhhh951

That would make ALOT of sense.

Techno Duck

That essentially creates a stroker and would net 2.8L. The other option is boring out for 2.7L.

For reading those compressor maps, look on the Garret webpage..they have a great tutorial on making sense of them, though you will probably have to read it a few times to understand. Im a marine engineer and deal with diesels all day long.. it took me two readings to get the gist of it .

VOoDOoGTX

there are alot of cars that aren't on renn list that are putting down very nice numbers.

when i had my A4 i was making huge numbers on my stock turbo and when i finally got onto some kinda audi forums everyone dismissed my numbers as bull **** because they didn't believe the numbers i was making. turns out that i was right and now people regularly make the same power out of there car. number was about the same 300+ whp on stock a stock K03 turbo.

Keithr726

^ then how much can I make with two more cylinders (2.7) and additional k03 250 seems a little conservative?

JC951

you can make quite a bit with those motors with a nice flash tune...but i'd go for the rs4 ko4 upgrades and make over 400...

I dable in VAG cars too...i have a 2003 vw 20th anniversary GTI as my daily

VOoDOoGTX

is your 2.7 stock? people get all happy about putting in k04s onto there S4 untill they see the bill. you need so much stuff. RS4 intake, RS4 y pipe, a tune injector rail and injectors. its just expencive and then after that your going to be chasing problems foreverrrrr.

We are replacing the stock turbos with K04s in a few weeks once they come on my friends car.

CPR

Justin,

I wouldn't tear anything apart.

Drive it...enjoy it, and to hell with the numbers. Seems like you have yourself a great re-freshed ride, I'd not waste time stripping it.

Go have some simulated fun with the vettes

JC951

well i wasnt exactly going to strip it, just take the IC pipes off...yet the hot side sits under the intake manifold more, and i know i want to put a turbo hat on there to reduce heat to the manifold...

as for taking vettes...its a little hard with the newer ones...i was cruising around with a buddy of mine one day...he has a 2004 vw r32 with a custom turbo setup with the biggest sized t3/t4...with a boost leak on low boost which should be making around 400 whp the brand new z06 was barely pulling away...high boost the car makes 463hp and 511 ft/lbs to all four wheels...so for now, i deal with mustangs, slightly older vettes and anyone else thats is stupid enough to want to race, granted i dont street race, i just drive hard sometimes...but oh well...

giving the guy from the shop that built it a call tomorrow...he emailed me back and would rather speak to me on the phone...so i shall get some answers tomorrow.

Rogue_Ant

Sid, yeah I agree with the BSFC being low. But even if you raise it, the plot line is still on the map - just takes more boost to get there.
Take your 280rwhp, then add 3psi more air (drop to sea-level) and you will definitely be over 300rwhp.
When you clamped the wastegate line, was this the factory wastegate? Because it will still open with enough backpressure. To truely max the k26 - a dual-port wastegate with pressure keeping it closed is needed, or just weld the wastegate shut

Might be fun to try to do - see exactly how much we could get out of a k26...


-Rogue

blown 944

Josh, no it was literally the valve that was clamped. The diaphram portion was off and just the case and valve were there. Valve was vise gripped at the top. I was well aware of the pressure against the valve .. and eliminated it

It was maxxed believe me. It went to probably ~ 27-30 (off gauge reading) psi then came down to ~ 14 at top end.

It took only about 2 weeks of this abuse,..... and then, well.... I tried a shot of Nitrous too and it wasn't having that and blew the turbine apart. I guess the turbine wheel and housing can't handle 400+ HP going through it.

This was all at bandimere it ran a 13.7's with only turbo and went half track like a banshee on the bottle but POOF . That was all she wrote for that turbo. It was an interesting ride home for sure smoked like a freight train. I actually got pulled over for it. Had to stop and get more oil too. It made it. With all the crazy stuff I have done with both of these cars I have never had to be towed home from the track.

Yes I am crazy like this