RE: 1/5 Pepsi Chipmunk - Build
Ari,
The Saito 180 with a Graupner 16-8 turned about 9000 on a slightly rich mixture setting. The plane weights about 14lbs, and I made the first takeoff at about 2/3rds throttle, and maybe went to "wide open" two or three times that first day, but only for a moment or two. You should not be lacking for power!!
Keep us informed!
Randy