If you have questions on setting "free rev" amps, now there's a simple free rev meter. Tested against a Blaser chassis dyno, it has the same numbers all throughout the range. Rated for up to 30 amps perfect for all blinky and open classes. Many of these are being used in everything including 17.5, 13.5, and open and have had great results! Changing motor components drastically changes amp draw. If you change a rotor and leave your timing at the same setting as you had before the change, you are not evaluating the change properly. Because you have changed amp draw thus changing rpms.
1. Check your free rev amps. Say its 2.5 amps free rev.
2. Make the change.
3. Check free rev amps again. Now its 2.1 amps free rev.
4. Now adjust the timing to set your free rev amps back to 2.5 and evaluate the change.
Just changing components and not setting free rev amps back to where you started is shooting your self in the foot.
Also now you can properly compare entire motors. Set each one to the same free rev amps and make back to back runs.
Directions for use:
1. Remove pinion gear
2. Turn on radio/receiver
3. Plug your negative ESC battery lead into battery
4. Plug the male plug of your meter into the positive side of your battery
5. Plug your ESC into the female side of your meter
6. Push power button on meter
7. Slowly pull throttle trigger to full throttle until reading stabilizes then slowly release. ( should be about 2 seconds)
*Warning: Major motor damage can occur from "free revving" your motor for to long!! Only rev until Amps reading stabilizes!!"
