Originally posted by jharkin
Oh, and make sure you are running a prop that lets the engine spin up into its powerband (ie. around 14k-16k on many .40 size engines)
The TH 40 is a brushing engine. If it's anything like my TT GP-42, it won't really spin past 14k. In fact it seems happiest around 12.5k (10x6 or 11x4 prop). My BB on the other hand like to spin...