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Poll: Which car would you rather track?
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Which car would you rather track?

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LOL, it can do a lap in 7:48 but then it takes 12 hours to do a pit stop

You'd think that if a company like toyota spent countless $millions to develop a prototype race car and the only restriction they had was that it has to be electric, they could come up with something with more than 375 HP.
Audi did it with a diesel and all kinds of restrictions, and it's putting out around 750 hp for 24 hours at a time.
Old 08-31-2011, 01:40 PM
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Yes, only 375hp, but how many ftlbs of torque?

Having driven an electric car on a track(Tesla S), the thought intrigues me, but battery life sucks....
Old 08-31-2011, 01:49 PM
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Whaz that formula again, something about 5252 rpm?
Old 08-31-2011, 01:54 PM
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Whaz that formula again, something about 5252 rpm?
+1, infinite potential torque with a max of zero RPM does squat.

Its the Torque CURVE with a given power levelthat matters more, not the actual torque output itself.

The long pit stops are the frustrating part about racing an electric.
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Old 08-31-2011, 03:18 PM
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What the heck is going on with the tires?

Sounds like he has 60 series All-Season street tires on.

It's just a short matter of time before electric cars hold the fastest times. Just a short matter of time.
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Old 08-31-2011, 03:31 PM
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For comparison, I used to have an electric Porsche 962 that would do an equivalent 600 mph.




it was a 12th scale and only went about 8 minutes between charges tho ....
Associated RC-12 w/modified motor. That thing was a blast.

I now have an RC-10L with a 935 body.
Old 08-31-2011, 03:34 PM
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For comparison, I used to have an electric Porsche 962 that would do an equivalent 600 mph.




it was a 12th scale and only went about 8 minutes between charges tho ....
Associated RC-12 w/modified motor. That thing was a blast.

I now have an RC-10L with a 935 body.
I hate "scale speeds"


This is my duel motor Electric, two speed transmission, 1st gear for more control at low speeds, when racing there was no point in shifting, I could flip it upside down in 2nd gear if I wasn't gentle with my trigger finger. I used it to race against gas powered trucks, until the race times at my local track where made longer than my batteries could stand, finishing several laps down to change out 2lb+ of batteries was not fun.

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Last edited by Tervuren; 08-31-2011 at 04:23 PM..
Old 08-31-2011, 04:18 PM
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Pits stops just need to be battery swap stops. Unplug, roll out old, roll in new and plug back in.

I would drive that Yota!

Speedy
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Old 08-31-2011, 05:00 PM
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Is it just me, or did that Toyota video feel more like a video ring lap rather than a real one?

Ian
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Old 08-31-2011, 06:22 PM
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Yup, "Horsepower" is some 5250 BS number somebody came up with and yet, some folks find it useful because of the mechanical leverage and gear box tricks you get with high-RPM engines. But the fact remains that the work an engine does is torque. And quite frankly, those of you with a thin understanding of electric motors and their comparisons with exploding-gas engines will have a rude awakening WHEN you experience an electric-engine car. There is no doubt in my mind that when battery technology is able to produce the (quickly-rechargeable) amp hours required, we're all going to save energy and have a lot of fun driving.

Ever played around with a 50-hp electric engine? Those things will twist a house. Electric cars are going to destroy fossil-fuel cars, in efficiency AND performance. It's all about the batteries.
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Old 08-31-2011, 06:32 PM
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In my humble opinion.
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Old 08-31-2011, 06:33 PM
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It's all about the batteries.
And weight. I wonder what the lap record is for a kart?


Won't use much gas.
Old 08-31-2011, 07:06 PM
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Torque curve of a 911 GT3



Torque curve of an electric engine

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Old 08-31-2011, 07:38 PM
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Creepy quiet....methinks they didn't give a full go. A 3 speed trans would give it more oommph....the driver needs work......lot's of technical errors. But hey....they have the record.
Old 08-31-2011, 07:58 PM
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Quote:
Originally Posted by Superman View Post
Yup, "Horsepower" is some 5250 BS number somebody came up with and yet, some folks find it useful because of the mechanical leverage and gear box tricks you get with high-RPM engines. But the fact remains that the work an engine does is torque. And quite frankly, those of you with a thin understanding of electric motors and their comparisons with exploding-gas engines will have a rude awakening WHEN you experience an electric-engine car. There is no doubt in my mind that when battery technology is able to produce the (quickly-rechargeable) amp hours required, we're all going to save energy and have a lot of fun driving.

Ever played around with a 50-hp electric engine? Those things will twist a house. Electric cars are going to destroy fossil-fuel cars, in efficiency AND performance. It's all about the batteries.
The electric car I posted above made pathetic Torque next to its gas powered counterparts - however, it turned 19K RPM. My lighter/faster more powerful brush less setup that I don't have a picture of was 35-40K RPM. A "big block" gas 2 stroke motor is going to make more torque than my electric motors!!! However, my electric spins faster and has insanely high gear reduction. There is sort of an ideal middle point between making power from high torque, or high RPM, each put different stresses on a drivetrain which increases inefficiency.


Quote:
Originally Posted by speedracing944 View Post
Pits stops just need to be battery swap stops. Unplug, roll out old, roll in new and plug back in.

I would drive that Yota!

Speedy

Problem is - batteries tend to contain some pretty nasty chemicals, they need to be contained and protected inside the crash structure, it makes it a little harder to get to. I much prefer what Porsche is doing for their hybrids using flywheels instead - much better for "Rwebb's Environtment".

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Last edited by Tervuren; 09-01-2011 at 04:58 AM..
Old 09-01-2011, 04:45 AM
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