3.8Mw Electric hypercar

Electric cars, trucks, ATVs, NEVs - things bigger than a motorcycle.
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kdog   10 kW

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3.8Mw Electric hypercar

Post by kdog » Oct 16 2020 12:16am

What do you think of this? Is this hyperBS or actually possible in a car.....3840kw?
Seems like fantasy but what can $2.4mill get you?
Even at 1000v that's 3840 amps, or 7.7kA at 500v :shock:
https://www.caradvice.com.au/892354/ali ... -hypercar/

Balmorhea   100 kW

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Re: 3.8Mw Electric hypercar

Post by Balmorhea » Oct 16 2020 12:19am

It sure smells like bullshit. Looks slightly uglier, though.
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kdog   10 kW

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Re: 3.8Mw Electric hypercar

Post by kdog » Oct 16 2020 12:33am

Quite the gamble if you drop the $$ on the pre-order. But unless you're into EVs how would you know?

Upperfoot   100 W

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Re: 3.8Mw Electric hypercar

Post by Upperfoot » Oct 16 2020 7:27am

Well a dragster was being worked on with those specs (exc range) https://insideevs.com/news/408448/ev-dr ... australia/

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The Toecutter   10 kW

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Re: 3.8Mw Electric hypercar

Post by The Toecutter » Oct 18 2020 1:49pm

It's plausible.

The 5AH LoneStar cell can do 500A continuous with a weight of 0.13 kg, 3.7V nominal, 0.0008 Ohms resistance. A 3,840 kW capable pack would have a battery weight of 302 kg using these cells, not including BMS/cooling/housing/ect.

The motors and controllers are going to be some real monsters. A series DC system with six Netgain WarP 11" HV motors and 3 Soliton Shivas could come close to handling that sort of power for at least a few seconds at a time(5-10), and that's just at the hobbyist/amateur level. Even with OEM components rated for these specs, if they even exist, the "racing" version of this car is probably going to be a 4,000+ lb lardass.

The car rendering is ugly and looks like a ripoff of an ugly Lamborghini. Personally, I don't believe their claims.

Hillhater   100 GW

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Re: 3.8Mw Electric hypercar

Post by Hillhater » Oct 19 2020 12:38am

Doesnt it use 24 motors ?.....6 on each wheel.
That would “only” need 160kW per motor! :roll:
And the 60kWh pack would “only” need to be 65C capable,....just for a minute or so !
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The Toecutter   10 kW

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Re: 3.8Mw Electric hypercar

Post by The Toecutter » Oct 19 2020 7:31pm

Hillhater wrote:
Oct 19 2020 12:38am
Doesnt it use 24 motors ?.....6 on each wheel.
That would “only” need 160kW per motor! :roll:
And the 60kWh pack would “only” need to be 65C capable,....just for a minute or so !
24 motors would be a strange design. I'd like to see the specs of them, assuming they even exist. I don't think they'd power the wheels directly, but through some kind of gear ratio.

5 kW peak power per 1 lb of synchronous reluctance or synchronous reactance motor is not out of the realm of feasibility as efficiencies approach 98%. You'd need a bit over 700 lbs of motor to handle this 3,680 kW, in the best of circumstances. Not impossible, but it would require quite a unique vehicle design to fit this drive system into the vehicle. Using 24 motors would seem a bit Rube Goldberg to me, necessitating a complicated means of adding the power output of the motors together to the drive wheels, but it is again, not impossible.

Reliable and long-lasting batteries capable of 100C continuous are out there, off the shelf, available to purchase by hobbyists.

https://lonestarevperformance.com/sleeper-cells.html

This amount of power would be so ridiculous that the car would be at its claimed 300 mph top speed from a stop in less than 8 seconds assuming it weighed around 4,000 lbs. I don't see that happening on standard street tires, but there are racing tires that theoretically would allow this on a sticky enough track.

Hillhater   100 GW

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Re: 3.8Mw Electric hypercar

Post by Hillhater » Oct 19 2020 10:29pm

Sure, some individual components are realistic, ..
160 kw motors are available, but how much does 6 of them weigh, and how does that work on each wheel ?
Powerful cells are not a problem, but what use is 60kWh when you have 3800 kW to play with ?
Anything is possible, but this,, like much of the “ideas” on the net, is just click bait crap !
Its the modern equivalent to what used to be schoolboy doodles in a scrap book.
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The Toecutter   10 kW

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Re: 3.8Mw Electric hypercar

Post by The Toecutter » Oct 20 2020 11:50am

Hillhater wrote:
Oct 19 2020 10:29pm
Sure, some individual components are realistic, ..
160 kw motors are available, but how much does 6 of them weigh, and how does that work on each wheel ?
Would be interesting if they showed us some specs. It would generally be more space/weight efficient to use one or two large motors instead of 24 of them.
Powerful cells are not a problem, but what use is 60kWh when you have 3800 kW to play with ?
60 kWh would be enough capacity to get it around the Nurburgring at full throttle(when it's not braking or cornering), possibly in record time.
Anything is possible, but this,, like much of the “ideas” on the net, is just click bait crap !
Its the modern equivalent to what used to be schoolboy doodles in a scrap book.
I agree. However, there is a possibility my assessment that it is click bait/scam could end up proven incorrect. The technology to build a car of this sort is definitely here, and has been for at least a few years.

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