First step would be to first of all unpack the mod using the "Repository > Mods Manager > (mod name) > Unpack" button to allow for real-time updates. Second step is navigating to the mod itself by simply clicking the "Open Mods Folder" button in the mods manager itself. Now go to "unpacked" in the explorer and opening the folder inside it. Keep opening the folders until you're in a folder with a lot of files. Now you're in your automation car's files. Third step is editing the engine jbeam. Search the folder for "camso_engine.jbeam". You may open it with any text editor you like, however I recommend NotePad++ or Visual Studio Code for jbeam editing. Once you've opened the file you'll be presented with a variety of values which all influence the engine. The only thing you need to edit however is "instantVolumeCoef" and "sustainedVolumeCoef". It's very sensitive, make sure you do not put the values too high. In order to edit the amount of afterfire you may edit "instantAfterFireCoef" and "sustainedAfterFireCoef". Once you're done: save the file, close the editor, and re-pack the mod in-game using the same method you used to unpack. Keep in mind that you can simply spawn the car and press CTRL+R to update your car according to what you changed in the file.