In-House GTM Stage 2 SC Install\Tune

Originally Posted by Mike@GTM

Yes, it's possible. Here's a graph of the Stage 2 with a smaller diameter pulley making 400wtq. Notice that the pull ends at 6200rpm because we stopped the pull...we were making 14psi of boost which was more than we wanted to make. The stage 2 is a real powerhouse once you start spinning it up.

Normally, we ship the Stage 2 with a 92mm pulley that is good for 500whp on 93 octane gas. Kosstick wanted less power and got the 96mm pulley instead.

Originally Posted by Nixlimited

Ohhhhhhhhhhhhhh. DUH. Sorry I missed that the first time. I was actually looking at that thinking, 6200 seems like an awfully low redline. Question indeed answered.

Originally Posted by kosstick

seems like the general increase per 1k rpm is 100 WHP just like my set up.

So this car is possibly making 530-550 whp?

Originally Posted by Mike@GTM

No problem.



After examining your dyno graph, you are making 75whp per 1k rpm increase.

4500 rpm -> 260whp
5500 rpm -> 335whp
6500 rpm -> 410whp

Yes, the car we were testing was making 100whp per 1k rpm increase and could have made 550whp, but we stopped the pull because it was more than we wanted to make.

Originally Posted by kosstick

Mike, On my new dyne I think i was making 100 per 1k but i could be wrong, Seb can you post the final run with 463 / 335?