oops nvm about the buttons not working well
+1 you have potential to acheive making a good engine, next time make a pstn engine. The buttons are cool and stuff but they dont work well because you have to sprk the metal. Also, have all the electronics and the fuel tank on the engine and work to make it compact. Otherwise the labels and such are nice. Look at mine? id:129302
The coolant serves to keep stable the temperature of the METL with WIFI. Previously helped to stabilize the pressure to avoid damaging the WIFI ... Anyway will be removed in the next version
What does injecting coolant achieve?