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  #21  
Old 01-09-2011, 05:52 PM
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Default Re: ev jr dragster

Quote:
Originally Posted by jr dragster View Post
can you set up the electric to creep to stage the car ?????
jr dragster,

With an Alltrax controller, yes you can, you would add a parllel circuit to your throttle. You would need to find the proper resistor to give the rate of creep you need. Zero ohms is thriottle off, 5000 ohms is full throttle. Somewhere in there at the low end is what you need. A bit of trial and error.

I would operate it with a push button. To use it, foot off throttle and push the button for creep.

Jim
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  #22  
Old 01-09-2011, 06:01 PM
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Default Re: ev jr dragster

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motor??????????????? amd a000-4009 at kta services for $605 ,50 pounds .or D&D es-15-6, $669 at ev drives 62 pounds with one would you guys recommend?????price is so close that ethier way, 12 pounds in weight is more important .give more your ideas thanks
In my opinion (we all know what opinions are worth) both are good motors. I don't know about power and torque differences. If weight is a consideration and power and torque are close go, with the lightest. Since you will only be stressing the motor for a few seconds heat won't be a big consideration.

Ask someone like major to offer an opinion, he knows bunches more then me about motors.

Jim
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  #23  
Old 01-09-2011, 08:20 PM
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Default Re: ev jr dragster

ADC a000-4009 vs D&D es-15-6!


Isn't exactly the same motor!
Both have same diameter, but the D&D is 12 lbs more heavy because it is 2" longer than the ADC.

This 2" longer = more torque!

And it's probably why the ADC is rated 6hp continuous/28hp peak and the D&D is rated 10hp continuous/40hp peak.

But don't forget, the 28 and 40 peak HP is only give by the manufacturer, and I'm not sure that will be easily reachable with the Alltrax 72v 450A and lead battery.

My ES-15-6 on my DRZ SM feel like around 35 hp at 83v nominal (62v sag) and 600A.

Well I think you need to forget the 12 lbs in more and appreciate the higher torque!
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  #24  
Old 01-09-2011, 09:06 PM
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Default Re: ev jr dragster

Quote:
Originally Posted by Yabert View Post
ADC a000-4009 vs D&D es-15-6!


Isn't exactly the same motor!
Both have same diameter, but the D&D is 12 lbs more heavy because it is 2" longer than the ADC.

This 2" longer = more torque!
Hi guys,

I recommend jr drag get the motor performance curves and brush size for these 2 motors, then he (we) could make an intelligent decision. Barring that, I'll side with Yabert here

major
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  #25  
Old 01-09-2011, 11:24 PM
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Default Re: ev jr dragster

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Originally Posted by major View Post
Hi guys,

I recommend jr drag get the motor performance curves and brush size for these 2 motors, then he (we) could make an intelligent decision. Barring that, I'll side with Yabert here

major
Guys,

I also agree more power is better.

BUT;

QUOTE "If weight is a consideration and power and torque are close go, with the lightest." UNQUOTE

I pound over class limits and you're dead.

Major, glad your here, I'd sure like to see this come out a winner.
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  #26  
Old 01-13-2011, 06:26 AM
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Default Re: ev jr dragster

Hi,

I just bumped into this motor while looking for something else..

http://cgi.ebay.com/4-HP-DC-Motor-48...item45f8017d73

I AM NOT RECOMMENDING it. I just don't know enough. I'm hopeing major would comment on it. It seems reasonably priced and powerful. It might work for jr daragster if they can work with ccw rotation. The low rpm and high torque just means different gearing.

Jim
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Last edited by Jimdear2; 01-13-2011 at 06:42 AM.
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  #27  
Old 03-27-2011, 11:36 AM
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Default Re: ev jr dragster

ok after 3 months of looking im ready to order my parts so i can get this done in time for racing,or dad will be in trouble. parts list missing ANYTHING??????????
d@d es 15-6 motor
axe 7245 72v 450 amp cont w fuse [should i get an extra fuse?]
JCA 400 solenoid
3amp diode [extra?]
1k ohm precharge resistor w 3/8 terminal [extra?]
pb6 throttle
wsb prog cable
deltec 250 amp shunt
10 amp fuse and holder x2
ed 250 emergecy stop x 2
20 feet 2 awg cable
18 wire lugs {some spares for learning lol}
crimper
cable cutters
heat shrink
front rear spockets and chain[wil have to figure gear ratio 4.1??]
lanyard shut off {may get one off a snowmachine}
will make all mounting and brakets.
sound good or will i need anything thanks for your ideas.
priced it all out will come in at $ 2,000 to 2,500 depending on battery prices.
thanks again
6 \12 batteries

Last edited by jr dragster; 03-27-2011 at 11:39 AM. Reason: spelling
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  #28  
Old 03-28-2011, 01:55 PM
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Default Re: ev jr dragster

http://www.diyelectriccar.com/forums...-15-56797.html

I also have fuse and other electrical parts from my motorcycle for you.
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  #29  
Old 03-28-2011, 02:10 PM
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Default Re: ev jr dragster

Quote:
Originally Posted by Jimdear2 View Post
jr dragster,

With an Alltrax controller, yes you can, you would add a parllel circuit to your throttle. You would need to find the proper resistor to give the rate of creep you need. Zero ohms is thriottle off, 5000 ohms is full throttle. Somewhere in there at the low end is what you need. A bit of trial and error.

I would operate it with a push button. To use it, foot off throttle and push the button for creep.

Jim
Sorry to revisit an old comment, but wouldn't adding a parllel path decrease the resistance, instead of replacing it as desired? Or did you mean for the added path to be always on and the pushbutton to interrupt the foot throttle circuit?

My throttle cable snapped this morning and I'm considering how to add an easy backup, possibly hand controlled.
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  #30  
Old 04-12-2011, 09:43 PM
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Angry Re: ev jr dragster

Snow finally melted got car out of shed.Made some parts from cardboard, motor ,and batteries to see if they will all fit.NO!!!!!!!!!!!!!!! motor is to big at 6.6 .would have to cut frame and body to make it fit.So new plan will us a Mars 1003 with a alltrax 7245 at 72volts.It may not be the perfect set up, but we will see? Alot of people are using them on bikes and they are working.The weight should not be an issue anymore,car 225 motor 39, batteries 78 ,cont 8 , wires etc 20-30 =370-380.
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