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If they ever do an all electric NASCAR that will be one quiet race with the exception of the air wrenches changing tires and automated battery replacement swapp

If they ever do an all electric NASCAR that will be one quiet race with the exception of the air wrenches changing tires and automated battery replacement swapping.

JacobAldridge 16y ago
Might be like digital cameras and the added shutter noise - speakers outside each car broadcasting pre-recorded engine noises based on a factor of electrical output and fuel load, plus some random number so the looped track doesn't sound like a looped track.
nuclear_eclipse 16y ago
Around Top Gear's test track, they were able to get IIRC about 30 minutes of full speed usage before he battery was completely drained, at which point it was a 6 hour recharge to top up the batteries again. Definitely not practical for any sort of extended racing series like NASCAR, etc.
- klous 16y ago
  Back of the napkin calc: NASCAR cars get 5 mpg, hold 22 gallon tanks --> 110 miles max range. Average speed of 170 mph --> a maximum of 39 minutes of racing. If they currently pit every 35-39 minutes or so, it wouldn't be completely impractical to pit every 30 minutes or so: have pit crews do a quick swap of the electric batteries at the same time as a the tire change.
  - nuclear_eclipse 16y ago
    > have pit crews do a quick swap of the electric batteries I think that's the impractical part...
    - hcho 16y ago
      How is it more impractical than changing the tires?
      - dtegart 16y ago
        Well batteries are much much heavier and would likely be in the centre of the car for weight distribution, and you need to make the electrical connection. Changing a tyre during a race just takes a speed gun and one nut.
        Oxryly 16y ago
        You just need to develop some sort of "liquid battery" and pump it in some sort of receptacle, or tank, in the car.
- Oxryly 16y ago
  IIRC the Top Gear segment was "produced" to show the car out of juice... i.e. don't draw any battery life conclusions from Top Gear's methods!
klous 16y ago
All electric Isle of Man motorcycle race "TT Zero" is already happening. Averaged nearly 100 mph for duration of 37.7 mile course. http://www.wired.com/autopia/2010/06/motoczysz-isle-of-man-tt-zero/ http://www.wired.com/autopia/2010/06/motoczysz-isle-of-man-t...

If they ever do an all electric NASCAR that will be one quiet race with the exception of the air wrenches changing tires and automated battery replacement swapping.

JacobAldridge 16y ago

Might be like digital cameras and the added shutter noise - speakers outside each car broadcasting pre-recorded engine noises based on a factor of electrical output and fuel load, plus some random number so the looped track doesn't sound like a looped track.

nuclear_eclipse 16y ago

Around Top Gear's test track, they were able to get IIRC about 30 minutes of full speed usage before he battery was completely drained, at which point it was a 6 hour recharge to top up the batteries again. Definitely not practical for any sort of extended racing series like NASCAR, etc.

klous 16y ago
Back of the napkin calc: NASCAR cars get 5 mpg, hold 22 gallon tanks --> 110 miles max range. Average speed of 170 mph --> a maximum of 39 minutes of racing. If they currently pit every 35-39 minutes or so, it wouldn't be completely impractical to pit every 30 minutes or so: have pit crews do a quick swap of the electric batteries at the same time as a the tire change.
- nuclear_eclipse 16y ago
  > have pit crews do a quick swap of the electric batteries I think that's the impractical part...
  - hcho 16y ago
    How is it more impractical than changing the tires?
    - dtegart 16y ago
      Well batteries are much much heavier and would likely be in the centre of the car for weight distribution, and you need to make the electrical connection. Changing a tyre during a race just takes a speed gun and one nut.
      - Oxryly 16y ago
        You just need to develop some sort of "liquid battery" and pump it in some sort of receptacle, or tank, in the car.
Oxryly 16y ago
IIRC the Top Gear segment was "produced" to show the car out of juice... i.e. don't draw any battery life conclusions from Top Gear's methods!

klous 16y ago

All electric Isle of Man motorcycle race "TT Zero" is already happening. Averaged nearly 100 mph for duration of 37.7 mile course. http://www.wired.com/autopia/2010/06/motoczysz-isle-of-man-tt-zero/ http://www.wired.com/autopia/2010/06/motoczysz-isle-of-man-t...