High Performance AEG Power Efficiency Survey
 

So I'm curious about amp draw in high speed (40 RPS and up) airsoft guns. I'm trying to make my own builds more power efficient.

No "guesstimations", I want readings from a chronograph and a real wattmetre.

If you guys wouldn't mind, I'd like the following info:
Performance specs
Amp draw:
RPS:
FPS:

-Drivetrain specs
Battery:
Spring:
Gearing:
Motor:
Bearing use:
FET/wiring:
Motor tabs or direct solder:

Thanks!

Shit I was going to say ask pestobanana but that won't work now will it...

Reserved post to compile entries:

pesto:

#1

-Performance specs
Amp draw: 39
RPS: 60
FPS: 330

-Drivetrain specs
Battery: Turnigy Bolt 3S 2800mAh 65-130C Li-Po
Spring: Lonex M100
Gearing: Siegetek 10:1 SSG, short stroke -4
Motor: Tienly 45k, brushes replaced
Bearing use: Modify ceramic 8mm, steel bushing under spur
FET/wiring: BTC Spectre, 16 AWG
Motor tabs or direct solder: Gold plated tabs

#2

-Performance specs
Amp draw: 23
RPS: 45
FPS: 425

-Drivetrain specs
Battery: Turnigy Bolt 3S 2800mAh 65-130C Li-Po
Spring: SHS M110
Gearing: Siegetek 10:1
Motor: Tienly Infinity U-30000
Bearing use: Modify ceramic 8mm, steel bushing under spur
FET/wiring: BTC Spectre, 16 AWG
Motor tabs or direct solder: Gold plated tabs

hoodlum

#1

-Performance specs
Amp draw: 17 on auto, 21 on semi spam
RPS: 35
FPS: 389

-Drivetrain specs
Gearbox: Lonex v2 gb
Battery: nano tech 1.2a 25-50c 11.1v Li-Po
Spring: modify m120
Gearing: shs v4 12.1 short stroked 2 teeth
Motor: Shs high torque red cap, comm lathed and brushes rounded in water soak
Bearing use: Modify ceramic 8mm, steel oil tempered bushing under spur
FET/wiring: irls 3034, 16 AWG alpha wire
Motor tabs or direct solder: Gold plated tabs and deans wiring

#1

-Performance specs
Amp draw: 17 on auto, 21 on semi spam
RPS: 35
FPS: 389

-Drivetrain specs
Gearbox: Lonex v2 gb
Battery: nano tech 1.2a 25-50c 11.1v Li-Po
Spring: modify m120
Gearing: shs v4 12.1 short stroked 2 teeth
Motor: Shs high torque red cap, comm lathed and brushes rounded in water soak
Bearing use: Modify ceramic 8mm, steel oil tempered bushing under spur
FET/wiring: irls 3034, 16 AWG alpha wire
Motor tabs or direct solder: Gold plated tabs and deans wiring

we have to find a niche for motor draw, what I mean to say is for the sake of efficiency we need a battery the can provide the draw at a given moment and take the abuse on semi spam aswell. Good luck with this study! ill be posting my 54 rps build soon!
francisco out

So I just did a quick experiment to see what kind of difference using bushings vs bearings made. I've added the result to a previous post. Went from all VFC steel bushings to Modify ceramic bearing bushings with a steel bushing left under the spur gear.

Current draw went down from 26A to 23A, everything else in the gearbox remained the same, I only installed the bearings, and of course I reshimmed it. RoF increased from around 37 RPS before to 45 RPS now. Current draw went down from 26A to 23A, difference of over 10%. I definitely was not expecting this much of an improvement.