Custom Allison trans tuning for the 11-15 A50 TCM is here from PPEI!
- Line Pressure increase!
-Early and sustained Converter lock up
-Ability to support 650HP on a stock trans!
-better transmission life!
Tunes will be emailed for your PPEI auto-cal or for your v2
The A50 Allison follows a pre-determined torque model in which all factory LML Duramax’s follow. As throttle input and load increases, so does the calculated torque the TCM estimates. Following this estimated torque amount, is line pressure. Line pressure in factory form is PERFECT for a factory tuned engine, however, once torque is increased with tuning… The predetermined torque model is higher than what the trans estimates and results is lower-than-needed Line PSI. With PPEI TCM TUNING, we increase the line psi to a torque model like it would of come with from factory – Which gives the transmission the line pressure it needs for the torque increase of the tuning.
Trans tune types:
**Street TCM Tune- We recommend this for trucks up to 550hp. It has a moderate Line PSI slope which will model a torque curve 50% above stock. The line PSI is modified in such a way that the truck will still retain good mileage, yet hold high line psi (Close to 300psi under full load) following this torque curve.
**Race TCM Tune- We recommend this for trucks in the 550-700hp range. It has an aggressive Line PSI slope which will model a torque curve 100% above stock. The line PSI is modified in such a way that the truck will still retain good mileage, yet hold high line psi (Close to 300psi under full load) following this torque curve. Line PSI is increased higher across the board, so as a result, mileage may be a little lower in some cases.
The following will be needed in order to purchase:
· Vin Number (ALL CAPS)*:
· Order Number (Written on back of AutoCal)*:
· Vehicle Modifications: