yes for the 1lb per hp complete setup scott and i think even derated, because the 800 160hp at 73lb with gear reduction and cooling system will be under 160lb but its 2stroke weight, your cam 100 at 115hp @230 is very good old 4stroke tech i think it will be similar to the sub4 but a bit better,i think sub4 is around 96 kilo 211,2lbs dont know if its with full accessory, we have many possibility with engine choice and modification,with today technology even more,but if we look in the past 1938 Rolls-Royce Griffon and merlin 4stroke supercharge 4valves per cylinder liquid cool 1.03 hp-lbs,but i think its possible today,to combine new tech with old tech to make good 4stroke turbo with 1hp lbs or very near this with good engine durability for flying