I have spoke with Kevin a couple of times and am getting very close to purchasing a set of his stage 2 turbo's. Anyone else have them and impressions?

TIA

Jags

 

i have stage 5s ... very nice...

 

I believe that StephenTi and BCS996TT have them and have nothing but good things to say.

 

Spools aggresive with still decent top end... programming is key to take full advantage of them.

 

You said decent, what don't you like about the top end? Ever had k24 to compare them to?

Jags

 

They are a hybrid setup which takes some from the K16 and is bigger than the K24 on the cold side (if I remember correctly).

 

Even though the K16 turbine wheels are 2mm smaller than the K24, the housing is 20% larger in A/R. So, the flow is actually faster than the K24 housing. Additionally, porting that was done matches the inlet dimensions of the K24s, but since the housing is tighter, the air is compressed more, resulting in higher velocity; that results in aggresive spoolup of K16 while better flow than K24. The flow is actually faster than the K24 housing.

Backpressure is relieved it through the aforementioned porting. The folks that are running the Garretts and the ball-bearing units have an even tighter A/R and smaller Twheel.

As for the compressor side, if you take the difference between the K16 to K24, and double it, that's about the size of my hybrid cold side. I also have the CNC Billet backplate, which provide stability for the sealing rings and thrust bearing and thrust stack.