I've been crawling the net for a small-engine dynamometer for a while, but thought someone in here might have a lead, or a hint of one.
I want either a water-brake or preferably a eddy-current dyno, rated to a *maximum* 37kW / 50hp. This is probably way more than enough. I want to test anything between model aircraft engines to small bike engines. Something like a go-kart engine dyno, or smaller would do - something you could rig up on a bench.
New ones go for around £3000, but there's no way I can afford that! Probably up to £1000 is more like it, and would have to include a controller, load cell, and other attendant equipment.
Any ideas gratefully received.