Sorry if this is not a 100% landy question, but this forum seems like the best place to get my question answered. I've got a 2.5 litre, naturally aspirated 90 or 110 diesel engine. It's been properly marinised and hooked up to a marine gearbox and I hope to use it to power my boat. I'm told that those engines are rated 68hp - at 4000rpm. Just wondering what sort of power it would develop at more "normal" revs, like 2500-3000 rpm. If anyone knows or could point me towards some power curves for this engine that would be great.

lpbvi