another update. the controller seems to be working again, it may have just been a fluke. but it got me a round trip of nearly 38 miles today around town,i always charge when i get to work of course. it seems i do need more volts and a stronger battery pack, so i will be doing a 96v conversion at some point here and picking up another battery to have two parallel 50ah 96v packs for a 100ah 96v pack. this should allow me to set a controller to only rev up to say 5500 rpm and keep the voltage up to say 60v. this means that as my battery depletes i wont notice any appreciable speed drop as i do now at 48v. a pack at 50v is way quicker than a pack at 44v . so im hoping to be able to consistently be able to put put 60v if i so need it , or any where as low as i need and never worry about droop. my BMS continues to act funny. it no longer outputs the total watt hours in the pack but only outputs what has been charged in then erases. i cant figure out the setting for this and the amps meter continues to de-calibrate itself. i was told it may be a bad shunt. so i bought two new ones just in case . i will try them and see if it fixes my BMS. it just continues to come un calibrated and reads crazy numbers, sometimes 900, or sometimes numbers that just dont seem true. it also wont allow the pack to fully charge like it used to which makes it all the more difficult.
on a different note, the new sprocket 12tooth came in, i wont make any bets as to what it will do for top speed, but im hoping shaving 2 teeth will help me accelerate quicker. which would be heavenly, today a prius was running around with me and i just had to laugh, mainly because i know he would win. although surprisingly enough, though my take off may be bad. my passing power isnt the worst thing in the world . for a vehicle with around 16 hp and 900 pounds. it does well. the 10t sprocket i recall had loads of torque while driving and was a bit scary but top speed was just not enough. im hoping my 12 tooth balances me out
i also went ant bought some carpet foam to insulate my trunk area where the motor is to dampen noise, the motor and chain get quite loud while driving so i am hoping this will bring some noise down for me.