4l60e tunerpro rt and torque signal pressure doesn't exceed 127

[pima.1971]

IIRC, it is code-limited to 127, but i forget why.

So how would one raise the line pressure to the 225psi for wot?

[RobertISaar]

i don't think it is possible. maximum line pressure is achieved with no current going to the pressure control solenoid, if you're seeing little to no commanded current, the PCM isn't capable of raising line pressure further.

from what i understand, the PSI modifiers in the calibration aren't exactly real-world values. they're either an offset to real-world results or they're just scaled for easy reference.

[pima.1971]

Then my new tranny is destined for 3-4 clutch failure? Surely there is some way to get line pressure to raise to match the load. It's a 4wd truck for crying out loud, heavy heavy heavy.