I’m on the final step of my build right now and have a few questions. My end goal is to have a board that I can select a high wattage mode to increase torque that is geared for high top speed, but with the ability to select a lower wattage mode that becomes efficient enough to travel much further with extremely reduced amp draw.
Primary question: how effective is decreasing watt limits on ackmaniacs firmware, or in general limiting amps, at increasing range substantially?
Background: I’ve gone through many calculators, and I’d like to hear some real world examples of people messing with settings to increase their range rather than just reading calculator results to myself.
Based on calculator results, I could get anywhere from 20+ miles with limits on the amp output / watt limits / keeping under 20 watt hour average, all the way down to 4 miles when pushing my components to the max.
Secondary question: this is more of a loose question on the thoughts of running 1.6:1 gear ratio instead of the standard higher gear ratio, how that might realistically affect my efficiency, torque, amp draw, heat output, distance, etc, with 2x 6374 190kv motors and 10s4p battery. I know it’s against the general recommendation to run 16/36t w/ 90mm flywheels, I am going to try 20/32t instead, with 15/36t on hand incase it’s horrible. I am gearing for higher top speed, but would decreasing my watt limit to 500 Watts max for range on such a low gear ratio even make any sense? I don’t care too much about torque if it means I get better range, and with my BT module I assume it’s easy enough to swap to a higher wattage temporarily if I need to climb 10%+ grades for a short period of time. I’d prefer to have the ability to already be geared for high top speed and simply change available Watts / amps to push me faster on demand and limit Watts to increase my range when needed.
Again, I’ve been reading all the threads lately and via searching about gear ratios, voltages, and running through calculators for all these variables, and I know that lower gear ratios will draw more amps… I’d just like to hear some of the communities thoughts and experiences on these things. I know the sentiment is to run somewhat close to 16/36t, but for those that have not or do not, I’d love to hear your thoughts as well… Also I’d like to hear from people who prefer speed to torque in general too.
Thanks guys!
, and if it ends up that I am constantly drawing more amps than expected due to my gear ratio, I’ll change my gear ratios at that point.
Even on the “eco mode”, it still gets up to speed pretty fast and goes fast overall thanks to the gearing… just without all of the umph it could have to get there.