Quote:
Originally Posted by FRS Justin
Things like:
1. Shift points
2. Shift firmness
3.Main line pressure
4. High rpm shift hang ups
5. Torque convertor lock up
6. Stall speed rpms
This is what I would start with.
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I don't think stall speed can be altered with TCU tuning. That usually requires a high stall converter.
However...that being said, EcuTek can do some of these things. Moto-East was able to increase the line pressure via their tune and also alter a few other things with high RPM shifting on my car.
What I'm not sure of it that was by directly changing TCU programming, or fooling the TCU by altering the ECU output to the TCU.
For example, a stock car with the pedal only down 20% of the way might be programmed to shift with less line pressure than if the pedal was 100% down. Once you've doubled the factory HP though, chances are you'd need increased line pressure at the 20% throttle mark. What their tuning MIGHT be doing is telling the TCU..."hey I am at 100% throttle all the time. Shift as hard as you can every shift!".