Power consumption and ESC/Motor questions

[Mocca Master]

Hey folks...

So, I've got a few questions. I have no clue whether these questions are completely lame so bear with me...

1) Power consumption: Overall, does a few turn engine 'suck more juice' than a high turn engine?

2) I've been looking at a new motor - either a 55t or preferably a 35t. I currently have a cheap 21t limit esc and a 3500 7.4V LiPo. Would this deliver enough power for the mentioned motors or do I need a special heavy duty ESC with higher turn limit (35t...)? If yes, why? Amp delivery/Voltage or... ?

Thanks! I'm just trying to understand the RC electronics a bit better.

/Mocca

[JeremyH]

Originally Posted by Mocca Master

1) Power consumption: Overall, does a few turn engine 'suck more juice' than a high turn engine?

2) I've been looking at a new motor - either a 55t or preferably a 35t. I currently have a cheap 21t limit esc and a 3500 7.4V LiPo. Would this deliver enough power for the mentioned motors or do I need a special heavy duty ESC with higher turn limit (35t...)? If yes, why? Amp delivery/Voltage or... ?

1) Correct. A lower turn motor will draw more current than a higher turn motor.
2) Your current ESC should be fine (as long as it will handle 2S lipo and has a low voltage cutoff). Other ESCs have different advantages than cheaper ESCs (adjustable drag brake, programmable settings, etc.), but yours should be up to the task.

[Mocca Master]

Superb. The ESC works fine with my LiPo and I just fitted a low voltage buzzer to keep my battery safe - worked out fine so far.

Thanks for clearing that up