ORIGINAL: NoOneFlysAtMyClub
Go to the pylon forum. Read the sticky on the Viper before you fly. A wealth of information, tips and tricks.
Your TT.40 should be hitting 17,000 with a APC 9 X 6 sport prop on the stock muffler.
Good luck, go fast and turn LEFT!!!
Will do, thanks. With a 9x6 it turns 17,200 on the stock muffler. Haven't tested the 9x6 on the pipe.