hjtrbo Posted May 14, 2022 Share Posted May 14, 2022 Just wanted to pass on a finding. I was never seeing adaption values change. I have an external cooler installed so trans temp never makes it above 70degC. They generally sat 50-65degC. Might see 70+ on a rare day. Ultimately I would like to install the Derale thermal bypass valve and a cooler fan to maintain constant trans temps around 80degC. I do not think the wide operating temperature range that my trans runs at the moment is optimal for adaption, but I have no facts to back that up, just logic that thermal stuff generally likes to be at constant temperatures. Take that with a grain of salt. I reduced the adaption value temperature setpoint ZF00027 from 70 to 50 and now the box has adapted to the new solenoids and seals I put in. I think there is no value in reducing this value if you run the factory heat exchanger setup as your trans temps will be 80+degC. Obviously log trans temps and if they're below 70degC nearly always then I then I think this mod is for you. Hope this helps someone. 6 Quote Link to comment Share on other sites More sharing options...
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