subject:"\[EVDL\] EVLN\: UK's 1000hp 1975 Electric Enfield \(v\)"

Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

2015-05-13 Thread Paul Dove via EV

I believe john walland does the quarter in less than ten in his electric Mazda.

Sent from my iPhone

On May 13, 2015, at 2:12 AM, brucedp5 via EV ev@lists.evdl.org wrote:

http://ecomento.com/2015/05/07/enfield-electric-1975-1000-horsepower-car/
Meet the 1000 horsepower 1975 Enfield electric (w/video)
May 7, 2015 |

[video
https://www.youtube.com/watch?v=_o6igJGsBoM
Flux Capacitor - 500+ hp Electric Enfield 8000 - 12.62 @ 101.65 mph
VeeDubRacing Apr 26, 2015
2015 Big Bang at Santa Pod Raceway
Jonny Smith in the Adrian Flux sponsored Flux Capacitor Electric Car. It is
a 1974 Enfield 8000 that ...

image
http://cdn.ecomento.com/wp-content/uploads/2015/04/1975-Enfield-electric-car-2.jpg
Enfield 8000 from the 1970s
]

Once upon a time, hot rodders talked about cubic inches and carburetors.
Today, they talk about volts, amps and kilowatt-hours. One such fellow is
Jonny Smith, a Brit who goes by the name CarPervert on Twitter.

Jonny was on the hunt for a tiny electric car from the 70’s called the
Enfield E8000 ECC. It came from the factory on the Isle of Wight with an 8
horsepower electric motor and a range of about 40 miles using a bank of
conventional lead/acid deep discharge batteries. He found the car he wanted
in Wales and set about converting it to a drag racer.

Smith was determined to make it into a 1000 horsepower 1975 Enfield. His
inspiration was John Wayland’s famous White Zombie – a lowly Datsun 1200
that was converted into a ferocious drag racer in Oregon. In an interesting
twist, that same car was also the inspiration for the Zombie 222 electric
Mustang we wrote about a few weeks ago.

Today, the car that started life as a modest electric runabout sports a
custom-built battery pack made up of 144 Kokam lithium-ion cells and
assembled by British firm Hyperdrive. The batteries are normally used to run
the starters and mini-guns in a Bell AH1 SuperCobra attack helicopter.

The batteries pack delivers 370 volts, 600 kilowatts, more than 2000 amps,
1003hp, and 1200 lb-ft of torque – all while weighing less than 360 lbs.
Those are the kind of numbers that bring tears to the eyes of modern day hot
rodders.

All that electricity goes to power two 9? Current Racing motors – modified
Netgain Warp 9? series wound direct current motors – which turn street legal
drag racing tires mounted on massive (for an Enfield) 14×7 Wolfrace mag
wheels harvested from a cast-off 1970 Pontiac TransAm.

Jonny Smith, aka CarPervert, named his micro-race Flux Capacitor, in honor
of the iconic DeLorean featured in the movie Back To The Future. During its
first race weekend, his team kept things turned down a bit. After all, 1003
horsepower in a car barely 8 feet long could be a bit scary. “I have to say
it felt shockingly good,” says Smith. “The twin 9? Current Racing motors
were strong, the coupling and 6? propshaft held, as did the Hyperdrive
battery pack, with its twinkling LED lit battery management system.”

Later in the weekend, the team turned up the wick and the car sprinted
through the quarter mile in 12.56 seconds at 101.43 mph. That’s faster than
the original 2010 Tesla Roadster. “Mid 12s makes it faster than any
road-going production EV bar Tesla’s P85D – which is my next benchmark to
beat,” Jonny said. “That means running 11s.”

Can the Flux Capacitor run more than a second quicker? Look at it this way:
The Enfield now weighs under 2000 lbs; the Tesla is around 5000 lbs. The
Enfield has 1003 horsepower; the Tesla about 700. So far, the Flux Capacitor
has been running only 70% of its maximum power. What do you think will
happen when all of its full potential is unleashed?
[© ecomento.com]

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http://www.newswiretoday.com/news/152552/
Automakers Shift Plugins Towards 6kw Onboard Chargers

http://www.gizmag.com/electric-motorcycles-scooters-government-subsidy-uk/37309/
UK government to subsidize electric two-wheelers

http://www.shanghaidaily.com/metro/society/Street-cleaner-killed-by-drunk-driver/shdaily.shtml
EV-driving street-cleaner Xu-Yifeng killed by drunk-ice-driver @4:25a
http://english.eastday.com/auto/eastday/metro/u1ai8487340.html

http://www.sequimgazette.com/business/301725931.html
L2 SCH EVSE @Sequim, WA Co-op Farm Garden True Value store
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Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

2015-05-13 Thread Ben Goren via EV

On May 13, 2015, at 12:12 AM, brucedp5 via EV ev@lists.evdl.org wrote:

 Later in the weekend, the team turned up the wick and the car sprinted
 through the quarter mile in 12.56 seconds at 101.43 mph.

Quite respectable in and of itself, and most impressive in a car that started 
life as the antithesis of fast!

 The batteries pack delivers 370 volts, 600 kilowatts, more than 2000 amps,
 1003hp,  and 1200 lb-ft of torque – all while weighing less than 360 lbs.

370 V * 2000 A = 740 kW, not 600 kW, and that's going to work out to be much 
closer to about the same numeric value for horsepower rather than 1003, so 
something isn't adding up. Very lightweight, though, for that much power. Be 
nice to know the Ah / kWh capacity...and the source and price

Regardless, in a vehicle that weighs under 2,000 pounds, he's got waay more 
power than he'll ever actually be able to put to the ground -- exactly the kind 
of problem you want in drag racing. Just taking that 1200 lb-ft of torque at 
face value...that's well over half the weight of the car, meaning that, 
assuming tires roughly 24 in diameter (give or take), even with no gear 
reduction (fourth gear equivalent and a 1:1 rear differential) he can _still_ 
break the tires loose. Insane! His big challenge is traction, including weight 
and balance management (especially getting the weight to shift to the rear axle 
without going over backwards) since he's not likely to be able to do much more 
with the tires.

Seems like a really fun project, and I bet it's even more fun to drive!

b
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Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

2015-05-13 Thread Cor van de Water via EV

I thought that torque was calculated/measured at the wheels
and to get the highest number, it is typically in 1st gear,
so I would not expect that they can break tires loose on a
dragstrip if they launch in 4th gear even with a standard
diff, let alone with 1:1 diff, because I expect that torque 
was measured in 1st gear, no?

100 MPH is 44.7 meters per second, with tires that are 24
dia (61cm) the RPM of the wheels is 1400 at 100MPH, you would not
want to gear your car to have the motor lugging that low
at 100MPH! (unless you are actually doing a speed closer to 1000MPH)

Cor van de Water
Chief Scientist
Proxim Wireless

office +1 408 383 7626  Skype: cor_van_de_water
XoIP   +31 87 784 1130  private: cvandewater.info
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-Original Message-
From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Ben Goren via EV
Sent: Wednesday, May 13, 2015 10:16 AM
To: brucedp5; Electric Vehicle Discussion List
Subject: Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

On May 13, 2015, at 12:12 AM, brucedp5 via EV ev@lists.evdl.org wrote:

 Later in the weekend, the team turned up the wick and the car sprinted 
 through the quarter mile in 12.56 seconds at 101.43 mph.

Quite respectable in and of itself, and most impressive in a car that started 
life as the antithesis of fast!

 The batteries pack delivers 370 volts, 600 kilowatts, more than 2000 
 amps, 1003hp,  and 1200 lb-ft of torque - all while weighing less than 360 
 lbs.

370 V * 2000 A = 740 kW, not 600 kW, and that's going to work out to be much 
closer to about the same numeric value for horsepower rather than 1003, so 
something isn't adding up. Very lightweight, though, for that much power. Be 
nice to know the Ah / kWh capacity...and the source and price

Regardless, in a vehicle that weighs under 2,000 pounds, he's got waay more 
power than he'll ever actually be able to put to the ground -- exactly the kind 
of problem you want in drag racing. Just taking that 1200 lb-ft of torque at 
face value...that's well over half the weight of the car, meaning that, 
assuming tires roughly 24 in diameter (give or take), even with no gear 
reduction (fourth gear equivalent and a 1:1 rear differential) he can _still_ 
break the tires loose. Insane! His big challenge is traction, including weight 
and balance management (especially getting the weight to shift to the rear axle 
without going over backwards) since he's not likely to be able to do much more 
with the tires.

Seems like a really fun project, and I bet it's even more fun to drive!

b
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Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

2015-05-13 Thread Ben Goren via EV

On May 13, 2015, at 10:37 AM, Cor van de Water via EV ev@lists.evdl.org wrote:

 I thought that torque was calculated/measured at the wheels

It can be measured anywhere, but is typically specified at the output shaft of 
the motor (whether electric or ICE) unless otherwise noted, for the simple 
reason that gearing changes torque. Horsepower can also be measured anywhere, 
and is generally assumed to be at the motor unless it's specified to be at the 
wheels. Both figures, of course, depend on engine RPM, and peak value is 
generally specified even though average torque tells you a lot more about what 
the engine can do than its peak.

If it's at the motor, the torque gets multiplied by whatever the final gear 
ratio is. The ICE half of my Mustang is going to have a 3.89:1 differential, 
and the engine will put out a relatively constant 400+ ft-lbs between 3000 and 
6000 RPM...which works out to about 1600 ft-pounds at the wheels in fourth 
gear, and nearly 5000 ft-pounds in first -- again, a problem in a ~3000 pound 
nose-heavy car, but a good problem to have.

When I put a dual AC-35 with ~2.5:1 reduction to a front wheel drive axle into 
the car in the next phase of the project, all-electric mode should be superior 
to what the original 260 cu. in. V8 was capable of...and hybrid mode is going 
to be insane, to use Tesla's word.

b
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[EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

2015-05-13 Thread brucedp5 via EV

http://ecomento.com/2015/05/07/enfield-electric-1975-1000-horsepower-car/
Meet the 1000 horsepower 1975 Enfield electric (w/video)
May 7, 2015 |

image
http://cdn.ecomento.com/wp-content/uploads/2015/04/1975-Enfield-electric-car-2.jpg
Enfield 8000 from the 1970s
]

For EVLN posts use:
http://evdl.org/evln/

http://www.newswiretoday.com/news/152552/
Automakers Shift Plugins Towards 6kw Onboard Chargers

http://www.gizmag.com/electric-motorcycles-scooters-government-subsidy-uk/37309/
UK government to subsidize electric two-wheelers

http://www.sequimgazette.com/business/301725931.html
L2 SCH EVSE @Sequim, WA Co-op Farm Garden True Value store
+
EVLN: SWIFT rolls out Belgium's largest BMW i3-rex pih fleet

{brucedp.150m.com}

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Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

Re: [EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

[EVDL] EVLN: UK's 1000hp 1975 Electric Enfield (v)

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