To back up Ty's remarks. The Aero Tiger 36 is a custom made engine that Randy Smith of Aero Products (Engine Forum Moderator) assembles. It is based on a Thunder Tiger Pro 36 case. A new, retimed, AAC piston/sleeve is made for Randy by Henry Nelson which gives this engine the best stunt run you can imagine. Randy fits each engine and they are awesome. It is a truly "stunt" dedicated engine, and one of the very best ever made. VSC and Classic at the NATS have been dominated by this engine since it's introduction. Very strong and exceptionally user friendly.
Bill <><