RE: Super Tigre G-51
I have flown my 4lb Little Stick with a G-51 and pipe 10-12 times now and it is a super fun combo. It has rocket like vertical. I may buy an ESComposites pipe for it to take 3-4 ounces off of it to get it sub 4lb. Not that I need the weight off of it but I just want to try a carbon fiber pipe!
It is hot down here in Texas but this morning I tached it at 13,800 and it cranks right up no problem, idles really good and low and has good transition.
Super Tigre G-51, header, pipe and an APC 12.25x3.75 = Killer Combo
I also have a GS-45 with a Jett Stream muffler on it and that engine is a little screamer as well. It isn't quite broken good yet but it is getting better each flight.
I'm loving this inexpensive little engine.