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Bit to hard on the pressure maybe?

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I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.

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Sat, 07/09/2022 - 20:00

#1

hjtrbo

Bit to hard on the pressure maybe?

Hi wacker.

I'm pretty close to calling my trans tune done but before I put away the laptop for the winter I wanted to double check some things that are bothering me that I may have made a mistake...

I'm interested to see what you think of the screen shot. What we have is the 2-3 shift that I have broken down into parts. The part of concern is the green section that has the grey trand line. This lines up with the line pressure rise to start the oncoming clutch preperation. It's not so easy to see on the hpt log, but when broken down into chunks in excel you can clearly see the rpm rate of change lays over before the shift. If zoomed out in the log you can see it, but when zoming back in you lose it.

I have 10% added to the shift pressure tables as well as virtual torque reporting about 10% over estimated flywheel as well. All adapts pressures and volumes are stock. THe only thing I can think of is I have gone to hard on the line pressure. Basically sitting up at 1880kPa (272psi) for the shift. Factory LSA + 6L90.

And lastly, just that little disturbance I have circled on the screen shot. Anything to worry about there.

Thanks mate! :)

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