Did 3 runs. First was in 3rd gear and didn't include it in the printout, it made 263whp. Probably about a 1 minute break between each pull. No fan or anything in front of the car (looking back I should have made them set something up). Car kept making more power each pull.
Some of you may remember my boost creep issue... still not perfect. Tried to flatten boosted out with EBC, but it's less than ideal. Going WOT at 2500rpm like this, the boost will hit 11-12psi intially, then easy up and hold 15-16 most of the way and creeps about 1psi past 6000. This helps hold some of the power past peak I'm sure...but maybe not, might be outflowing the turbo at this point.
Going GT2781R and EWG next. Wanted to get a good 'baseline' in this setup before moving on... probably run about 12-14 with that turbo until I can build the motor and get a 6 speed tranny.
Based on my...guesswork, I should be able to hit full torque/boost closer to 3k, 3200, if my boost control was right. I have to really 'numb' my EBC so it wont overboost going from part throttle boost to WOT. The boost control fail is also evident in the wavy torque, especially in blue.
At the end of the day, i wanted 250whp, so im very happy right now!
Those are great numbers on a stock engine... shows you the benefits of that style manifold over an fm/begi cast piece. An intake manifold or even a basic head-job should see you touching 300whp... bust as as been demonstrated before, you are close to the limit of the 2560. On the stock motor, I'd think an ati dampner would be a good investment to help the internals last a little longer.
Just looked at the datalogs. AFR was pretty good around 11.5-11.7 for most of the runs, but past... 6k or so, it goes down, 10.5 by redline lol.
I was probably losing some fuel pressure at redline with the stock pump.... threw on the Walbro today and now it's getting too much. Might have been able to eek out a bit more power but whatever, at least it was safe I guess.