5 Attachment(s)
Stock 6L80, +1000WHP CTSV TT, WOT shifting issues
So I'm at a point where I'm feeling lost with the trans calibration to get this car to shift right. It's my biggest HP Gen4 yet, so it's a new learning curve again. I've tuned 500W 6L80's with no issues. This one if we crank the boost to 25psi (about 1100W), it just won't shift well. I've tried countless attempts changing different values. I modified virtual torque to report closer to reality TQ and this worked decently to get it to shift at least, but still having issues with delayed shift response and basically having the engine "ignition cut" hard and pop as it approaches the shift point. I'm at a point I'm commanding it to shift at 6000 2-3 shift, to just get it to shift at actually 7k, with piss poor mediocre shift quality.
Not sure what I'm doing wrong (or right at this point) anymore, since I'm green at these big HP builds for 6L80 tuning. Attached latest tune and logs for someone to shed some light. I'm not sure if perhaps maybe i'm still underreporting torque and having that as root cause of it, or maybe I need to re-enable TQ management at the TCM? Or perhaps just my airflow is not adequately scaled? :banghead::confused:
Stock 6L80, stock converter, Twin Turbo 6.0L built block
Latest tune and logs attached. Full run log was at about 25 PSI
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