Etronix Photon 2 ESC, what motor for progressive throttle response...
 

Hi guys,

I have an Etronix Photon 2.0 60a ESC and 12.0T Motor combo on my buggy. Speed wise it isn't phenomenal but it isn't too bad either.

I run it with 16 degrees of timing in order to not be left behind at the track :)

The one thing that annoys me about this setup is the lack of throttle progression, as you press the throttle it is weak, weak, weak, and all of a sudden HYPERDRIVE! Which for racing is sub-optimal. I have an old ESC and brushed motor and that's much slower, but the throttle is nice and progressive which I enjoy.

I'm very new at all the more modern RC stuff like brushless, so bare with me :) Initially I thought it was merely because it was a sensorless ESC and motor, but then I saw a a review http://www.youtube.com/watch?v=jZ8mo-IY38g and it made me think that perhaps there's a better motor our there for me.

My question is simple, what cheap (I'm on a budget) sensorless motor could I buy that has a little more power than my current motor (http://etronix-rc.com/drive-etronix/...r-3300kv-motor) is compatible with my current ESC (http://etronix-rc.com/drive-etronix/...1-10-60amp-esc) and a much more liner throttle response?

Thanks in advance :)

Basically, you're not going to get smooth throttle with a sensorless system.

So you'll need to go sensored.

Well, I suspected the answer might be that :) But was hoping that it wasn't :(

You can get a brand new sensored system for sub £100, mb models have a sale on motors and they have a sensored esc for £45

I'm quite new to all this too, but am learning fast. It sounds to me that you have a not particularly fast motor and you have advanced it too much. Result - no torque. None. But it'll rev to the moon.

The 60A Speedo will handle a more powerful motor than the one you have now. Perhaps a 9.5t or even a 8.5t. Pop one of those in with standard 7 degree timing and gear it down and you might be pleasantly surprised!

You could pick up a decent motor secondhand for £25 or a new less well known make on eBay for a similar amount. Being sensoress will only make the power slightly less linear from standstill.
Jimmy

I had a similar problem to you and found out it was the motor. It was made for a plane so the soft start was ok. Stuck a car motor in and it worked perfectly.