A little history, bone stock dynoed on Superflow chassis Dyno at 211 hp consistant 3 pulls, wrote a tune made 219 consistant over 3 pulls.
Installed GM Stage 2 kit without the factory reflash and belt was slipping being brand new and not broken in made 225.
This is where I got suprised, I had scaled the injector flow rate by the percent of difference in the injector size but it was really lean on bottom and really rich on top, So I had to change injector flow rate to 40 lb injectors instead of 42 and cut down PE.
In this file there is no injector constant to mess with.
Any Ideas?
I Now have the factory Stage 2 Reflash installed and I read it and did a compare to the original tune to see what GM changed.
I will dyno it as soon as possible and follow up on this thread.
I feel that it is lean until 4800 where the PE delay point is now in the stage 2 and the stock file was 3650 I beleive, I may lower this back and see what happens.
Also wondering if anyone has dynoed a stage 2 yet, what was the HP, TQ, and A/F.
Interestingly they raised the desired boost to 200 across the board, and the desired torque to 738 across the board, it was around 460 at peak, I imagine this is Axle torque.