Thanks for the sound 8) I tweaked it up to 4 thrust and .15 energy consumption (Maraz\' engine has 8 thrust and .2 energy consumption, but it\'s much larger). The plugin should be save to download, but it does nothing without the new part configs, which probably remove ships using the old config from the persistence file. Backup the .sfs, if it\'s broken post here, maybe it can be edited manually.