Repository download page I made some change to the Automatic gearbox shiftlogic and introduce some more Jbeam variables. DOWNLOAD (remove the WIP tclockupthrottle_covet_d0p.zip first), Repo version It's quite common for automatic gearboxes to delay the TC lockup by throttle value before downshifting. Mod feature: Delay the TC lockup RPM by throttle settings with adjustable parameters, NO more 3rd gear bogging down. The Covet is already configued for demonstration. Vehicles: Wentward DT40L Gavril Pickup/Roamer/Van Ibishu 200BX ETK I-Series Gavril Grand Marshal Ibishu Covet Ibishu Hopper Bruckell LeGran Ibishu Pessima/Midsize Gavril T-Series Other vehicle shifting is unchanged. Choose the mod Converter in the vehicle parts Jbeam parameters: Code: "shiftLogicName":"automaticGearboxmod", //using the modded shiftlogic "torqueConverterThrottleLockupRange": 1000, //increase this RPM with throttle application "torqueConverterDelayLockupMinThrottle":0.2, //throttle below this does not increase the lockup RPM "torqueConverterDelayLockupMaxThrottle":0.7, //throttle at or above this fully increase the lockup RPM Lua modifications: Code: lockupTarget = clamp((gearboxInputAV - torqueConverterHandling.lockupThrottleRange * clamp(M.throttle / (torqueConverterHandling.lockupDelayMaxThrottle - torqueConverterHandling.lockupDelayMinThrottle) + torqueConverterHandling.lockupDelayMinThrottle / (torqueConverterHandling.lockupDelayMinThrottle - torqueConverterHandling.lockupDelayMaxThrottle),0,1) - torqueConverterHandling.lockupAV) / torqueConverterHandling.lockupRange, 0, 1) and this: Code: torqueConverterHandling.lockupThrottleRange = (jbeamData.torqueConverterThrottleLockupRange or 0) * constants.rpmToAV --delay torqueConverterLockup with throttle application torqueConverterHandling.lockupDelayMinThrottle = jbeamData.torqueConverterDelayLockupMinThrottle or 0 --no lockup delay below this throttle value torqueConverterHandling.lockupDelayMaxThrottle = jbeamData.torqueConverterDelayLockupMaxThrottle or 1 --max lockup delay above this throttle value How to use it Put the zip in your mods folder and drive the Covet the above vehicleafter selecting the Throttle-based Locking Torque Converter part. For other vehicles, enter the Jbeam code in the converter section, right below the "torqueConverterLockupRPM". Parameters value adjustment: important for a good driving experience. torqueConverterDelayLockupMinThrottle: Must at or above 0 and below the "torqueConverterDelayLockupMaxThrottle" value, should be set to a bit above cruising throttle. torqueConverterDelayLockupMaxThrottle: Must at or below 1 and above the "torqueConverterDelayLockupMinThrottle" value, should be set to just below downshift throttle. torqueConverterThrottleLockupRange: Not set or set to 0 to disable the function. Note that above certain engine speeds, the lockup action merely affect the RPM, set to roughly that RPM minus the "torqueConverterLockupRPM" then divided by two. Trial-and-error might needed to fine-tune for the best driving experience. Lockup RPM basic calculation example: The throttle setting is 0.4, the "torqueConverterDelayLockupMinThrottle" is 0.2, the "torqueConverterDelayLockupMaxThrottle" is 0.6, the "torqueConverterThrottleLockupRange" is 1000 and the "torqueConverterLockupRPM" is 1300. The actual lockup RPM would be 1800.