• shalafi@lemmy.world
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    13 days ago

    Had an ex-friend who was a motorhead arguing that electric motors will never beat ICE because they lack comparable torque. Look, I’m no mechanic, but I never got my head around that.

    “You mean they don’t have enough torque to run a US destroyer?! Someone should call the Navy.”

    Seriously, if you’ve played with even a tiny electric motor, provide DC, it goes, instantly. What could he have possibly been trying to say?

    • Boomer Humor Doomergod@lemmy.world
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      13 days ago

      My parents had an original Prius and it was a weedy little car that made those two hippies really happy. If that was his only experience with electric cars I can see why he’d think that.

      But the new ones are fucking rockets. I just don’t understand why they need all that. Can they make a cheaper one that’s got 300 horsepower?

      • MangoCats@feddit.it
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        13 days ago

        . I just don’t understand why they need all that.

        Power sells, they can give that insane 0-60 sprint for very low cost, so it gets people to buy their product instead of a 6 liter V8.

          • MangoCats@feddit.it
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            12 days ago

            It’s so sad, because we could make really great shitbox econo cars now. China, Japan and India are doing it, meanwhile in the U.S. we’re needing side-step assistance to climb into our tower-viewing position $80K+ ROADMASTER trucks and SUVs.

          • MaggiWuerze@feddit.org
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            13 days ago

            Usually the electric cars with a larger motor are also more efficient, since the motor does not have to run near its peak all the time.

    • UnderpantsWeevil@lemmy.world
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      13 days ago

      What could he have possibly been trying to say?

      I mean, the general appeal of ICE engines is the fuel, not the engine. Gasoline is generally more energy dense than lithium.

      • shalafi@lemmy.world
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        13 days ago

        Nah, his complaint was lack of torque. Very strange, never got it. Figured he was repeating fossil fuel propaganda. But he was a motorhead!

        And yes, energy density is the thing no one talks about when raging against fossil fuels. A gallon of refined gasoline packs insane energy. I’ve run my 5-gallon, crappy Harbor Freight generator all night into the morning, powering the camp, heaters and all, never came close to emptying it. Contrast that with a monster LIPO4 battery that died in 48-hours only powering LED lights. (Gotta admit, something weird happened there.)

        • UnderpantsWeevil@lemmy.world
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          12 days ago

          Nah, his complaint was lack of torque.

          Maybe just had torque confused with horsepower? That’s been the historical trade-off between gas and electric. Sure, its very easy to get an electric motor to jump into action. But it is comparatively difficult to generate the same amount of power with equivalent fuel density.

          A gallon of refined gasoline packs insane energy.

          Much of which is lost to heat when combusted, which is the historical hang-up.

          Not that batteries don’t have their own heating problems. But the benefit of batteries is that they’re an engineering problem we can solve with miniaturization, which we’ve become incredibly good at. We’re at a soft ceiling in terms of engine chemistry. Petroleum is about as refined as we’re going to get it. Combustion’s math is what it is. Improvements to the efficiency of modern engines have stalled out as an automotive tool, even to the point that a gas engine powering an electric capacitor in a hybrid yields performance improvements over the gas engine just spinning the wheels directly.

    • SaveTheTuaHawk@lemmy.ca
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      12 days ago

      Electric motors don’t have a torque curve like ICE, which is why they don’t need a transmission. Those massive submarines run on electric motors.