Fun little EV

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offgridQLD
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Real Name: Kurt
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Fun little EV

Post by offgridQLD » Fri, 04 Dec 2015, 17:24

This little project looks like a fun car. Apparently it's clocked a 10 second 1/4 mile. That's faster than a P85D. Not very refined but a fun toy.

https://www.youtube.com/watch?v=u6VJ6_4yCkw

Kurt

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offgridQLD
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Fun little EV

Post by offgridQLD » Fri, 04 Dec 2015, 17:31


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offgridQLD
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Fun little EV

Post by offgridQLD » Thu, 10 Dec 2015, 13:58

Just looking at the pack voltage 275v rested and 1400A controller setting in the video test drive. 385kw! Though to do the 10 second 1/4 they had it at 1800A 495kw!

That's a lot of power for a tiny little car with aluminum body. My guess is its probably 600kg perhaps 800kg max.

Though there must be some massive accumulative losses with voltage sag, Brushed motor inefficiency & perhaps controller inefficacy. As it should take way less than 495kw to get that tiny weight down the track in 10 seconds.

Perhaps the gearing was to short and it took off like a rocket and ran out of legs. Wouldn't supersize me with a brushed motor that cant rev as high.

Would be interesting to see a few pulls on the dyno.

Kurt

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Jeff Owen
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Fun little EV

Post by Jeff Owen » Thu, 10 Dec 2015, 16:55

offgridQLD wrote: That's a lot of power for a tiny little car with aluminum body. My guess is its probably 600kg perhaps 800kg max.
Kurt


The weight is quoted as 850 kg
The original weight of the Enfield is 975 kg with lead acid batteries.

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offgridQLD
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Location: Fleurieu Peninsula, SA

Fun little EV

Post by offgridQLD » Thu, 10 Dec 2015, 17:10

Thanks Jeff,

Ok lets say the guy driving it about 75kg and the car is 850kg Total 925kg. To do his 10.8 second 1/4 mile with that weight you only need roughly 240kw. about 1/2 of what the math would suggest when you just take controller amps and rested battery voltage.

240kw at the wheels is impressive though for that little thing.

Kurt

Last edited by offgridQLD on Thu, 10 Dec 2015, 06:12, edited 1 time in total.

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