I checked in the handy McMaster catalog for heating elements.
Not a bad idea. They have 240 Volt AC 4 Kw units at $116 each so we would
only need 10 in parallel. We could connect them one at a time
to vary the load. Now if that LE GenSmart  G32L2 was under
a $1000 and 240 Volt AC it might be a workable turbo compound  dyno.
http://www.lt-eng.com



I seem to remember paying about $20/unit from an appliance store
(of course, that was in an earlier life)
Water-heater elements might be another option, of course
they burn out in an instant if they are not submerged in water

Robin Berglund