Ok...looked it up the Magneto makes 380 watts of power.
Watts= Volts x Amps
Bilge Pump (every 2.5 mins)- 12(volts) x 1.9(amps)= 22.8 Watts
Bilge fan (Continuous)- 12(volts) x ~3.2(amps)= 38.4 Watts
So that is about 62 watts pulled every 2.5 mins(for 1 sec) and 39 watts pulled continuous.
so the magneto will stilll put out 318 watts (every 2.5 mins for 1 sec.) and 331 all the other time...
at 6000rpms...Which is most of the time what I am running, 6000 rpms and above, except in the no wake.