TWOFER SALE---TWO MOTORS FOR THE PRICE OF ONE
TIMING IS EVERYTHING! It makes perfect sense. A motor timed at zero will run in either direction but will not run efficiently at top speed in either direction. It follows that timing will improve top-end performance, but in only one direction. Typically, all stock Speed-400 motors are timed at zero to go either direction.
The new Zagi-400 Pusher is a custom designed dedicated reverse rotation 6-volt motor. The can looks the same but inside there are three important new features. The Zagi Pusher is factory timed to optimum top-end performance for direct drive reverse rotation. Like the earlier Zagi-400 motors, the Zagi Pusher is balanced. The Pusher winding wire gauge was changed to increase torque at top-end.
The balance, timing and new formula winding all contribute to the ten percent plus increase in speed and greater torque for better vertical performance; bigger loops. Radar tests clocked the Pusher on a Zagi X at 52 mph, 7 mph faster than stock.
The Zagi Pusher is designed to achieve maximum performance with 9.6 volts. Three cell Li-Poly battery packs will cause damage. (SMOKE!!).
How to use Li-Po batteries with the stock Zagi Pusher Motor on a Zagi-XS and Zagi-60
The first issue using a Li-Po battery is the low voltage cutoff of the ESC for brushed motors. The Zagi-20 ESC for brushed motor has a non-programmable low voltage setting of 4.2v. Permanent damage will result when Li-Po batteries are discharged below 3v per cell. There is a variety of aftermarket voltage cutoff devices available. Just Google the words "Li-Po saver".
The second issue is that the Zagi Pusher motor was designed to operate with an 8 cell 9.6v battery pack and turn a 5X5 prop at about 14000 rpm at 14 amps. A three cell LiPo battery will smoke the motor. You must use two a cell pack. A two cell 7.4v Li-Po battery does not spin the 5X5 prop fast enough. Either more pitch or more diameter is required to equal that current load. The Master Airscrew 6.5X4 or the 7X4 prop will provide the load and thrust matching the 5X5 prop depending on your elevation.
The third issue is the easiest. The prop cutout will need to be expanded to the bigger prop. You have to sacrifice about a half inch of elevon.
