Hi i have the kingtech K 100G on my new Velox G2,it is absolutely awesome start up to idle is is quick with idle to full power in around 6secs but this can be adjusted if you want these engines are very reliable i have two kingtech turbines now and i am extremely satisfied with there performance .Im not sure if you are aware but on the K 100 the solenoid valves are internal on the engine ,great move by kingtech as now you only need one fuel line going in to the turbine,a freind of mine has 5 kingtech turbines all perform flawlesly