Ok; been away for a bit; I picked up an E-flite Power 15 which mounted perfectly into the PZ Spitfire. Changed out the 30 amp esc to a 40 amp esc.
Now I am up against it. PROPELLORS.
The stock PZ prop 9.5X7.5 only uses 16.4 amps/152.8 watts.
I tried a spare 11X7 and this prop only uses17.6 amps/162.7 watts
The power 15 is good for up to 42 amps max burst and 425 watts.
With these two props the esc pulses and is not happy.
I was using a 2600ma 3 cell 25c.
And i have a 2250 4 cell i might try out.
I can only have the prop so long due to ground clearance.
Looking for any ideas on props to try, even a three bladed prop.