Hey Billy, my WM Cub has DL100 in it. Its a tight fit. Search for the WM 1/3 Cub and you'll find lots of pictures of various power plants being used. I'm not familiar with the Z80 so I can't even make a educated guess on whether it would fit or not. I did end up nose heavy on my bird with DL100. If the Z80 weights more than the DL100/111 you may want to reconsider its use. Jerry.