Jim Cathey wrote: > > It's a bit low for optimum torque. I think most MB engines would > be happier at about 2400 RPM. My genset plans always include a > transmission as well for this reason.
If you can get a mbz for scrap metal prices, it's worth looking for a 2400rpm generator head. Otherwise, why not use a Cummins 4bt from an old bread truck? With torque peak around 1600, they should be quite happy with a 4 pole generator.