Peak Torque
[QUOTE=TurboDiverArt]If I'm understanding things correctly, I "think" we are all talking the same thing but using different or maybe slightly incorrect semantics. You are definitely correct that the shift point is load and TPS based and not strictly RPM based.
One area I think I'm going to disagree with you on is that the stock shift points are where you want them and that lowering them somewhat is not what you want to do. Yes you hold torque multiplication longer by delaying the shift point higher in the RPM range but torque multiplication is power in multiplied by the gear ratio. So, making the shift point above the max output on the torque curve means less power into the torque multiplication so less power out. Now, you do have to shift higher than the max torque otherwise the bottom of the shift will be below the torque curve and the truck makes no power after the shift. I don
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