well you could try a .18tz with the eb mods. They have 2.3 hp with the .12tz(5 port) putting out 1.62 (this is off there website). Or you cold try a .21 and get 2.5 hp. But you would have to do some mods with the .21. The biggest engine i have heard of in a xxx-nt was a .18. But with even a .18tz the trasmission i dont think would handle it for long so you would have to do something about that. But i cant imagine you needing much more then the .18tz with the eb mods to finish him off. I mean even with my .18cvr it does wheelies fine and will flip it on it's top side.


I think your best bet would be the .18tz with eb mods and 30% with some really grippy tires and maybe ( i dont think you will need it) some weights in the back. But i think with all that i would have to be scared of dumping it on the lid so much.

But thats my opinion