9.3:1 7500rpm dyno pull

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Oct 3, 2010 | 01:15 AM

TurboAv

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From: Tonopah, AZ

9.3:1 7500rpm dyno pull

Went back to the dyno and worked on the tune a little. We tried bumping the timing to 33 degrees. It didn't get any KR, but it also didn't help power. So we backed it down to 31 where we left it last time. We also pulled her up to 7500 rpm and got the fueling squared away up that high. My stock injectors are at 90% duty cycle with a stock pump. She also doesn't seem to really move out until 5000rpm on the street. It's almost like VTEC kicked in, lol. Seriously though, it's very noticeable. We are thinking possibly since I had the converter spec'd for a 300hp shot of nitrous it isn't liking being NA right now. Even off the juice it's stalling at 4000 though. It's spec'd for 4600-4800 on the bottle. My tuner want's me to do a standalone and put the spray bar on a 200-250hp shot until I go FI. I'm including an overlay of my old cam and bolt-ons only LS2. To only loose 14rwhp and 13ft-lbs going to a lower compression motor is pretty good I think.

Based on the dyno pull, where should I be shifting my TH400 for the best times? 3.46 rear gears with a 26" tire.

Runfile 2 is the old stock LS2 and Runfile 13 is the new low compression motor.