hi I have a AGM 30cc petrol engine in my 1/4 scale cub lots of power more than enough

Oh c'mon a 30cc engine will barely get it off the ground
Heck, you'll need at least 2m or a couple of yards to get that beast in the air
Pete

Valley View RC 40cc twin in my 1/4 scale Super Cub. Silly power and minimal cowl hacking

DLE 35 in mine and I really like the way it flies. Mine is the Hangar 9. Since I ran it for 2 gallons rich then started to lean it out a little , it will just keep going vertical, barely, but doesn't fall off

That's the 35RA

ASP FT160AR four stroke glow twin in my H9 1/4 scale Super Cub. Flies it well. Didn't intend to hover it or fly 3D with that airplane, and that engine will certainly not deliver much vertical. However, it flies it around with great power, great climbout, and a great scale sound. Hobby King (I know, I know!) sells it for about $385. Try it out.

Rcgf came out with a 30cc gas twin. Also there is that A38 gas four stroke.

VVRC 40cc Twin . I have this engine in my Hemple clipped wing cub.

I love it. More power than I expected and very easily to deal with.

VVRC Service is impecable .