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Aaron R Bailey
Joined: 03 Feb 2010
Posts: 6
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 Posted: Tue Feb 16, 2010 12:04 pm Post subject: Electric Motor for racing karts (High Performance) |
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Hey Everyone,
An engineering group at Cal Poly is working on developing a high performance electric motor for kart racing. The motor would be mostly made of carbon Fiber, weigh less than 15lbs with a mount, and put out about 28 lb-ft of torque with a top speed of 80 mph. With electric motors the torque is constant, so you would have maximum torque at 0 rpm up through the range up to ~70mph, where it would begin to drop off.
The performance of this motor would rival or surpass a TaG engine. The battery would weigh between 20-25 lbs and would basically replace the current fuel tank on the car.
We would like to get some feedback on the idea, including how much would you pay for the motor/battery combination (assuming you wouldn't have to rebuild it or service it for a year minimum), how long you would like a battery to last (meaning would you rather have 4 smaller batteries you could switch out throughout the day or a single larger battery). |
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Kristian Werkley
Joined: 22 Sep 2006
Posts: 317
Location: United States, New Jersey, Lindenwold
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| Posted: Tue Feb 16, 2010 1:20 pm Post subject: |
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That's pretty awesome, I know in RC car racing electric is really starting to surpass the nitro cars for performance.
I would think if the whole system could be had for ~$5000 and would give ~20 minutes of run time, you would have a viable replacement for gas kart engines.
Oh and if it can get closer to 100 mph that'd be great too.  |
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Mike Goebel
Joined: 28 Jul 2001
Posts: 5766
Location: United States, California, Winnetka
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| Posted: Tue Feb 16, 2010 1:34 pm Post subject: |
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No sound, No interest!
Mike G.
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Juan Jaramillo
Joined: 20 Jan 2010
Posts: 235
Location: United States, Virginia, Roanoke
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Chad Stapleton
Joined: 19 Jul 2001
Posts: 4403
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| Posted: Tue Feb 16, 2010 2:04 pm Post subject: |
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| Kristian Werkley wrote: |
I would think if the whole system could be had for ~$5000 and would give ~20 minutes of run time, you would have a viable replacement for gas kart engines..... |
I doubt there are many karters who would shell out $5k for an electric power unit with no track record.
i think you should target <$2k with an ideal closer to $1k when in mass production.......if you want to sell in quantity rather than simply "novelty" sales.
| Quote: | | ....The motor would be mostly made of carbon Fiber, weigh less than 15lbs with a mount,... |
Why CF ? ... super low weight is not essential. go with cheaper materials to keep the costs down and increase market volumes.
PS.... if you cant do it....the Chinese will ! 
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Chad
"Those of you who think you know everything are annoying to those of us who do !!" |
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Dean Graves
Joined: 11 Sep 2001
Posts: 518
Location: United States, California, Lompoc (Lompton)
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| Posted: Tue Feb 16, 2010 2:31 pm Post subject: |
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Aaron,
Good idea, they said the World Formula would never make it too. Remember? May have to start a grass roots thang.  |
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Clarence Carter
Joined: 08 May 2008
Posts: 1345
Location: United States, Georgia, Atlanta
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| Posted: Tue Feb 16, 2010 2:34 pm Post subject: |
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| Mike Goebel wrote: | No sound, No interest!
Mike G. |
Duece!
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where ever I go, I bring it |
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Kris Zimmerman
Joined: 29 Oct 2004
Posts: 432
Location: United States, Oregon, Newberg
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| Posted: Tue Feb 16, 2010 2:34 pm Post subject: |
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Come on goebel, you never made car noises as a kid? You could be a clutch kart one lap, a shifter the next and the flagman would be busy black flagging everyone for swearing at each other 
I'm actually interested in electric karts. The biggest issue is battery cost, weight and run time. |
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Mike Goebel
Joined: 28 Jul 2001
Posts: 5766
Location: United States, California, Winnetka
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| Posted: Tue Feb 16, 2010 2:47 pm Post subject: |
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| Kris Zimmerman wrote: | | Come on goebel, you never made car noises as a kid? |
Maybe, ok I still do on my heavy traffic drives home.
Mike G.
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mfg Technology Centre
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Chad Stapleton
Joined: 19 Jul 2001
Posts: 4403
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| Posted: Tue Feb 16, 2010 3:06 pm Post subject: |
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Aaron,
it seems your ESP will need to include a "sound generator" ( with Iphone connectivity so people can download their favorite motor sounds) ..
......if you want to reach the whole market ( inc Goebel !) 
Also, what is new about this proposed system ???
There are several existing high power (low weight ?) electric drive systems available for karts. what is missing, as Kris said, is a cost suitable effective , low weight , battery pack. 
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Chad
"Those of you who think you know everything are annoying to those of us who do !!" |
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Dan Haynes
Joined: 17 Sep 2007
Posts: 2372
Location: United States, Pennsylvania, Ellwood City
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| Posted: Tue Feb 16, 2010 3:58 pm Post subject: |
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just put a baseball card in the spokes
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Blaise Haynes
#3 Arrow X1-CIK
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Cook Racing Engines Parilla Leopard |
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Kristian Werkley
Joined: 22 Sep 2006
Posts: 317
Location: United States, New Jersey, Lindenwold
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| Posted: Tue Feb 16, 2010 4:33 pm Post subject: |
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| Chad Stapleton wrote: | | Kristian Werkley wrote: |
I would think if the whole system could be had for ~$5000 and would give ~20 minutes of run time, you would have a viable replacement for gas kart engines..... |
I doubt there are many karters who would shell out $5k for an electric power unit with no track record.
i think you should target <$2k with an ideal closer to $1k when in mass production.......if you want to sell in quantity rather than simply "novelty" sales.
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$5k isn't that far off what most engine packages cost these days. Who says it won't have a track record? If the product is released correctly it will have been thoroughly tested and demonstrated.
It's happening right now in 1/8th scale RC cars, they won't even let the new electric cars run with the nitro cars because the electric is so much faster.
It's just a matter of time before gas is a thing of the past. |
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Rich Hays
Joined: 09 Sep 2005
Posts: 239
Location: United States, California, Huntington Beach
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| Posted: Tue Feb 16, 2010 4:36 pm Post subject: |
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| Mike Goebel wrote: | No sound, No interest!
Mike G. |
Electric motors make sounds ....... Just not the right ones !
-rh |
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Chad Stapleton
Joined: 19 Jul 2001
Posts: 4403
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| Posted: Tue Feb 16, 2010 5:27 pm Post subject: |
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| Kristian Werkley wrote: |
$5k isn't that far off what most engine packages cost these days.... |
Kristian, have you read the threads in the General forum on ...
"Why are so many people leaving karting lately" ...
and .... "How to keep karting costs down"
and have you listened to the debate on the $5k KF class motors ??
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Chad
"Those of you who think you know everything are annoying to those of us who do !!" |
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Kristian Werkley
Joined: 22 Sep 2006
Posts: 317
Location: United States, New Jersey, Lindenwold
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| Posted: Tue Feb 16, 2010 5:56 pm Post subject: |
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| Chad Stapleton wrote: | | Kristian Werkley wrote: |
$5k isn't that far off what most engine packages cost these days.... |
Kristian, have you read the threads in the General forum on ...
"Why are so many people leaving karting lately" ...
and .... "How to keep karting costs down"
and have you listened to the debate on the $5k KF class motors ?? |
Yea I've been reading, I'm just trying to be realistic about a release price for a high performance system. (I think to be successful it should be faster than a shifter kart in order to get everyone's full attention)
As the trend caught on economies of scale would probably help mitigate costs. |
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