# Electric cars are a pipe dream

Discussion in 'General Science & Technology' started by Syzygys, May 20, 2010.

1. ### elteValued Senior Member

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My car has a too-stingy carburetor that causes it to stall (It's defective). I need an electric motor attached to the engine that will not let it drop below idle speed.

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3. ### DaS EnergyRegistered Senior Member

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223
Hello elte,

It may be cheaper to provide a degree of force to the idler screw?

Cheers Peter

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5. ### elteValued Senior Member

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1,319
Howdy Peter, oddly, the idle circuit is probably the only portion of the carburetor that works correctly! Once it finally will keep running and the cranking the starter motor can be discontinued, the car idles okay. However, when the gas pedal is pressed, the engine stalls. The accelerator pump seems not to be working, at the very least. I intend to inquire into the availability of a carburetor rebuild kit or some other option to try to fix the problem.

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7. ### billvonValued Senior Member

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> I need an electric motor attached to the engine that will not let it drop below idle speed.

I think a new carburetor would be a lot cheaper!

8. ### elteValued Senior Member

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1,319
>I think a new carburetor would be a lot cheaper!

Indeed, thanks!

9. ### Billy TUse Sugar Cane Alcohol car FuelValued Senior Member

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23,198
with a twist on what is meant by "Electric cars" here is coming concern:

"... Car-hacking: Bluetooth and other security issues: It's not time for full-on panic, but researchers have already successfully applied brakes remotely, listened into conversations and more. " from: http://www.computerworld.com/s/arti...y_issues?source=CTWNLE_nlt_dailyam_2012-08-06

Story tells of one set of ~100 rental cars that were remotely stopped and horns turned on.

10. ### Billy TUse Sugar Cane Alcohol car FuelValued Senior Member

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23,198
Not a hybrid but cheaper and selling well as exports:
Billy T question: Don´t almost all cars use asbestos containing break shoe pads? They are slowly ground up but gaskets in between parts of an exhaust system get no wear. Why what seem to be a double standard (and backwards)?

11. ### TrippyALEA IACTA ESTStaff Member

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10,890
No, not generally.

Asbestos used to be used in brake pads, but has been phased out in favour of things such as (other) mineral fibres, cellulose, Aramid, PAN, copper fibres (also being phased out in places) and even chopped glass or steel.

12. ### quantRegistered Member

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49
Electric cars have both good mileage, I think the Nissan leaf gives something like 100 m on a full charge and are far more efficient in energy use than IC petrol engines. This can easily be verified by looking at the watt hours ( or equivalent) used. For instance the Nissan Leaf has a battery capacity of about 23 KWh, a full charge gives 100 m (approx.) If a gallon of petrol is equivalent to 11KWh and the mileage is on average about 35 mpg, then it is possible to see that the electric car is about 1.5 times (approx) more efficient than an IC petrol engine. It is not the efficiency or the mileage that is the problem with electric cars, but the grid. If a large scale shift to electric cars took place the grid would not be able to cope. This is because cars use the energy consumed by an ordinary household during a single day i.e., about 18 KWh to travel about 50 m. in less than an hour. So everything will have to be scaled up to meet this demand. This in turn will mean that existing fossil fuel reserves, coal or oil are going to disappear at an exponential rate. So it is better to wait until a better more sustainable solution comes along.

13. ### SyzygysAs a mother, I am telling youValued Senior Member

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Untippable gyroscopic electric motorcycle:

http://techcrunch.com/2012/09/10/li...e-market-with-its-two-wheeled-untippable-c-1/

20. ### Stoniphiobscurely fossiliferousValued Senior Member

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3,245
From your fingers on the keyboard into GM's ears.

I don't know how they did that, but they announced on the GMA morning news today that they are indeed knocking $10k off the price of a Volt. Please Register or Log in to view the hidden image! Also saw an ad for a Hyundai electric that has a lifetime warranty on the battery and touts 100 miles on a full charge. 21. ### KilljoyKlownWhateverValued Senior Member Messages: 6,493 Even so,$30,000 is still a bit high for my taste. Think I'll wait for Volt 2 in a couple of years.

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22. ### Stoniphiobscurely fossiliferousValued Senior Member

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Yeah, I hear you on that. I hope to keep my ride putting with me for several more years myself. Hope they nail down some serious hybrid technology by that time for a decent price. A major battery breakthrough would indeed help on that score considerably.

23. ### DaS EnergyRegistered Senior Member

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223
Hello Syzygs,

Question. On what premise do you base all ectric cars need a battery. Electricity does not need be stored but may taken direct from alternator to electric motor. There be no reason electricity why electricity need first be passed to a battery. Electricity need be generated somewhere so why not under the hood. This can be simply done 24/7, no museum technology needed.

Cheers Peter

Cheers Peter