Abandoned randomly yoop. Gonna do a vin check on the van, the truck, and the minivan (that thing has like Enkei rims O.O)... brought a second battery today, even with a second battery could barely get it to turn over >_<
Overvolting will get you that extra torque you need. Get the Currie 900W motors. 900W at 24v... I've been running them at 48v for a few months now with no side effects. In fact, I split one open and other than a bit of oxidation, it looks terrific!
Top speed of 24MPH with 12.5" tires and 11/90...
The digitizer the panel BEHIND the glass... the actual "screen". You bought the wrong part... if your glass it cracked, but the image is fine, all you need it a .99$ piece of glass from Hong Kong, not the digitzer...
So you geared the motors up with bigger motor sprockets and expected more torque? Lol. Get a 36v controller and run a 36v setup. They DO make sprockets larger than 76 teeth, but they'd take some modification for them to fit.
Hell, it could be a bottlenecking controller. What controller are you...