Mine's an 87 Samurai, but there isn't any "power band" without RPMs. I think of it as a motorcycle with 4 wheels. I dunno, but I reckon all little 4x4s with gasoline engines are the same. Back in the day, folks were fond of swapping in VW Rabbit Diesel engines, but I think that was a flash in the pan. Although the diesels might have had some torque at low RPM that we don't get with gasoline engines...
But I'm an idiot who don't know nuffin.
:-)
- ZM