ZDZ 80 is 4.29 lbs, the same as a Zennoah g62 but makes much more power.
This would certainly be able to give all the power the ultimate needs.

the ZDZ 80 makes close to the same power as the DA-100 (remember a single cylinder 80 cc is more effcient then a 2 cylinder 100cc, which is why the ZDZ 80 makes tons more power then a similarly displaced Zennoah 80) and people even use them in thier 33% planes.