Synergy E7SE pinion advice please

[JamieD]

My scorpion HK4530 540KV motor and scorpion 130 esc are running hot. I know that scorpions tend to run hot, and I don't know exactly what temperature it is running at cos I haven't got a temperate gun, but I wanted to check that I'm running the appropriate pinion.

Pinion = 12t, main gear is standard 121 teeth.ESC running at 80% which equates to 2200-2300RPM head speed.

The Spektrum telemetry temp gauge reads 50-60degrees but I reckon it's hotter than that cos the temperate sensor is positioned at the bottom of the motor. I can touch the motor for 1 to 2 seconds after medium level 3D flying.

I haven't got much experience with Scorpion motors so I'm wondering if this set-up is fine and if the temperature seems OK?

On the plus I'm getting quite long flight times of 7 minutes semi soft 3D flying.

[JamieD]

motor timing is lowest setting 5 degrees.

[Rctintin]

I have a 4525 Ultimate and a Kosmik 160 in my E7se, and the motor in that comes down hot, esc quite warm.

Also in my TDR I have a 4525, but that's custom hand wound, so its cooler because its more efficient.

Your 4530 is a powerhouse, so even if it's 90% efficient, that's still 10% of its power going to heat, that's 500-600watts!! How hot does a 60w soldering iron get?!!