I have a rather heavy Balsa Nova. I was using a Super Tigre G-2300. It pulled the plane around just great. The problem was, it just wouldn't keep running.
I bought a FTL26cc from Hobby City. It started first time and run fine. The problem is, all I can get 6800rpm out of it. The plane barely gets off the ground. The only other gas motor is a Zenoah G20EI. It seams a lot more powerful.
All I can get out of the FTL26 is 6800rpm. I think I'm going to go back to the Super Tigre and hook up a D cell battery to the plug and see if that keeps it running.