3 ms·

The roadster also has 10,000Nm of torque and a top speed over 400km/h. In the old measure that's 7,375 ft-lbs and 250mph+. Those numbers are simply insane, fo

• oppositelock 9y ago
  That's 10,000 Nm (aka 7375 ft-lbs) wheel torque. The hellcat has 650 ft-lbs engine torque. First gear in the hellcat is 4.71:1 and rear axle ratio of 2.62:1, which gives you 8021 ft-lb at the wheel at torque peak. In second gear, we have 5347. So, a small car with more wheel torque than a Hellcat in 2nd gear, nice! Edit: Used incorrect ratios, updated.
  • aunty_helen 9y ago
    Generally wheel torque would be quoted in the gear that gives you a 1:1 (or close to) ratio. Hence in a lot of cars a dyno run will be done in 4th gear as higher gears are generally overdrive gears. Also your calc is missing the final drive ratio.
• jsmthrowaway 9y ago
  It might do better than 300mph if they can build tires capable of holding the car down in one piece. I’m not kidding, I do genuinely suspect that’s a possibility given the figures they announced. I’d wager that’s part of why they wouldn’t commit, because they aren’t sure what it can do yet and have been working with Michelin or Pirelli to find out. It’s hard to comprehend 1.9 pushing a battery pack. If that thing doesn’t break 300, it’ll flirt.