Maybe he V3 blower doesn't give as much boost on same size pulley as V2. You should be at 12 if same as vortech. 4" for V2 at 8200 rpms is 11 psi.

 

No..they r the same.
I had found the answer long time ago.

 

I am also running a SOS 4 bar map sensor. Our setups are similar. I sometimes think about how cool 400whp would be just to say you hit it but I'm too lazy and happy where I am right now lol

 

Its worth it. I was running 376rwhp at 8.4 psi. Now at 10psi I think Im in the 395-410rwhp,. The car has a much stronger low end. For daily driving the increase in torque is very nice. Above 7krpms it screams. The Vortech is closer to its peak efficientcy at 10psi.

Check out these runs I just made. Running against a friends STI (~370awhp and torque), before he would put around 1/2 car length on me, now my car puts one on him after the pulley upgrade.

[media]https://www.youtube.com/watch?v=vBdvbU2Fo44[/media]

 

video doesnt work

did you get retuned or did you tune it your self after upgrading the pulley?

 

It was originally etuned by Evans tuning and again now with the upgraded pulley