ORIGINAL: jeffie8696
Probrojoe is having good luck with his ST engines. He runs one with a pipe on an F-20 Tigerkitten.
Yep, it's true... My ST .45 on a Macs muffled pipe and 1.5" off of the header was turning a APC 10 x 7 to 14,700 on 5%... swapped over to the '51 and she's turning that same prop to 15,200...
Me likey the Tigres...