On May 13, 2015, at 12:12 AM, brucedp5 via EV <[email protected]> wrote:
> Later in the weekend, the team turned up the wick and the car sprinted > through the quarter mile in 12.56 seconds at 101.43 mph. Quite respectable in and of itself, and most impressive in a car that started life as the antithesis of fast! > The batteries pack delivers 370 volts, 600 kilowatts, more than 2000 amps, > 1003hp, and 1200 lb-ft of torque – all while weighing less than 360 lbs. 370 V * 2000 A = 740 kW, not 600 kW, and that's going to work out to be much closer to about the same numeric value for horsepower rather than 1003, so something isn't adding up. Very lightweight, though, for that much power. Be nice to know the Ah / kWh capacity...and the source and price.... Regardless, in a vehicle that weighs under 2,000 pounds, he's got waaaaaay more power than he'll ever actually be able to put to the ground -- exactly the kind of problem you want in drag racing. Just taking that 1200 lb-ft of torque at face value...that's well over half the weight of the car, meaning that, assuming tires roughly 24" in diameter (give or take), even with no gear reduction (fourth gear equivalent and a 1:1 rear differential) he can _still_ break the tires loose. Insane! His big challenge is traction, including weight and balance management (especially getting the weight to shift to the rear axle without going over backwards) since he's not likely to be able to do much more with the tires. Seems like a really fun project, and I bet it's even more fun to drive! b& _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
