RE: New Hangar 9 1.50 P-51 Build
I had 4, 14oz tanks of 30:1 through it (amsoil full synth). Might need more running im not sure?. The main reason i sent it in was because of the ignition. Although bought new a few months ago i believe it had the old ignition that needed 4.8v but when i called horizon about the low rpm's the tech guy said run it on a 6 cell pack or 2 lipos as the weak spark was the low rpm problem. Attached a 6 cell pack and the box started buzzing kinda loud. So rather then fry something i sent it in. If the engine is the problem or the ignition Horizon will take care of it.