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190 Posts
Reality check.
Ok guys, here’s the scenario. I’ve built the EV, (chassis 1994 Mazda b2300 truck, motor ADC 9” 4001, controller Curtis 1231c, pack 120v #20-6volt lead, crown GC 225 amp, new batts, 2-0 copper welding cable top mount connectors), I’ll start out in first gear and pull =500 amps than draw down to =100, 2nd gear the same to about 45 mph, 3rd will pull highway speeds of about 55-60 mph, on a flat grade, with some effort and continuous draw of 200-300 amps. This seems like A LOT of current. Now the front end does need a rebuild (which I’ve done and am now awaiting alignment at the shop), and I’m happy that none of the connections feel hot, nor does the controller heat up, nor does any of the wiring feel hot after a run at load, and the last run of 14 miles seemed to only use ¼ SOC, per hygrometry, still this still seems like A LOT of current. Does this seem like a normal current usage for this kind of build? I have no reference for the current usage for this vehicle and don’t know what kind of performance to expect and the math is squishy for performance estimation. Now it is winter and I’ve been testing the EV at 35-45 degrees f. hopefully my range performance will increase with warmer weather and some more optimization, and life on the lead pack. I’ve also put 30-50 wt oil in the trans (5speed manual) and rear end. Opinions??????????? Thanks again…… Lou-ace.
Ok guys, here’s the scenario. I’ve built the EV, (chassis 1994 Mazda b2300 truck, motor ADC 9” 4001, controller Curtis 1231c, pack 120v #20-6volt lead, crown GC 225 amp, new batts, 2-0 copper welding cable top mount connectors), I’ll start out in first gear and pull =500 amps than draw down to =100, 2nd gear the same to about 45 mph, 3rd will pull highway speeds of about 55-60 mph, on a flat grade, with some effort and continuous draw of 200-300 amps. This seems like A LOT of current. Now the front end does need a rebuild (which I’ve done and am now awaiting alignment at the shop), and I’m happy that none of the connections feel hot, nor does the controller heat up, nor does any of the wiring feel hot after a run at load, and the last run of 14 miles seemed to only use ¼ SOC, per hygrometry, still this still seems like A LOT of current. Does this seem like a normal current usage for this kind of build? I have no reference for the current usage for this vehicle and don’t know what kind of performance to expect and the math is squishy for performance estimation. Now it is winter and I’ve been testing the EV at 35-45 degrees f. hopefully my range performance will increase with warmer weather and some more optimization, and life on the lead pack. I’ve also put 30-50 wt oil in the trans (5speed manual) and rear end. Opinions??????????? Thanks again…… Lou-ace.
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