Hey there. I have a 2004 Dodge Ram 5.7 Hemi that is solely used as a drag truck. Stock internals, 90mm TB, shorty headers, open exhaust and 150hp dry shot of nitrous.
I'm having an issue on the shifts from 1-2 and 2-3 where I get a lean spike in the AFR and then it seems to take a second or more to recover. My injector duty cycle drops from 80% to 60% during this time as well. Timing is flat at 19*, my PE table is the same across the board, and throttle stays at 85%. I don't run torque management so i'm not sure what is causing the fuel to change on the shifts.
I've attached the tune that's currently in the truck. Please keep in mind that this is strictly a drag truck. If someone has any insight it would be most appreciated.
Thanks
Kevin
infhemi -june 2021 tune 16 - Final run.hpt