the 50/144 peaks at 87hp and the 50/108 peaks at 75hp, so maybe.
they did a slight rewind on the 50 to make the ac51, more torque per amp (and necessarily less rpm per volt) to better match the 144 (their claim)
ac51/144 peak 88hp
http://www.hpevs.com/Site/images/to...51 144 volts 500 amps imperial peak graph.pdf
contrast to the ac51 at 108 74hp, but 150 foot pounds.
http://www.hpevs.com/Site/images/to...ac51 108 volt 650 amp imperial peak graph.pdf
what isn't immediately clear is why the 108 and 144 controllers don't make about the same power, 144*500=72000watts, 108*650=70200watts, but the 108 comes up a good 12-14 hp short with both motors in the peak graphs.
