The ZT 170cc UAV Engine is designed for large fixed wings and VTOL UAVs. It comes with EFI version with starter and alternator. EFI engine is much more advanced in many aspects, including higher power, oil-saving, low noise, not easy to extinguish, only ignition for one time. The ECU is able to automatically adjust the ignition time, fuel injection volume and idle control according to engine temperature and altitude. Our drone engines can be customized according to your requirements.