Quote:
Originally Posted by ReV:-O
Thanks for your reply sikeston34m. I use a pair of NeuEnergy 30/60C lipos - top quality stuff. I'm running 22/62 gearing in my E-Revo which, according to the speed calculator, shoud be getting me around 60mph. Even with this gearing in a heavy truck, the lipo's barely get warm.
As the buggy is smaller and lighter, I should be able to gear it high with out worrying about anything overheating. But it gets me that HPI say you can't achieve anything higher than around 64mph unless you switch to the 2650 motor, which I swear isn't meant to be run above 5s lipo...
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NeuEnergy makes really good Lipos. What Mah are they? 5000mah?
Ummm........HPI has been known to publish misinformation before. The way I look at most gearing suggestion publication is:
They have to come up with the "rules of thumb" for all the noobs to live by. LOL
The 2650 motor being capable of more overall power than the 2200kv is false. The 2200kv motor is bigger! Period.
There are alot of factors that determine just how much power a motor can/will deliver, all with the temperature showing the final limits.
1. Rotor size. Diameter, length and N scale strength of the Magnets used.
2. Efficiency. How well it converts electrical power to kinetic energy. You will see, most motors are rated with an efficiency % value. If a Motor's rating is 90%, and you're pushing 1000 watts through it, then you have 100 watt soldering iron inside and you must have a way to shed that heat before it lets the smoke out.
Just because a motor has a higher kv rating, doesn't mean it's capable of more "watts of total power".
Is the 2650kv motor a higher "speed" motor? Yes, but........see where the misunderstanding comes in?
Hybrid Mode
