[Georgia Tech]

Please I am begging as HARD as I can!!! Please someone I know has used this Motor in an EV or application before! Please I know someone has!
Can someone tell what details of the setup? How well does this motor perform? Poor ?? Great??
Please I have look for years look for someon who has put this in a car! Still I have not found one but I know someone has used this motor brfore!

PLEASE SHARE what you have found!


http://cgi.ebay.com/DC-Motor-375015-...item2a0e04b2b4

Well if it's anything like my 9" GE it will be a kick ass motor if you advance the brushes and put 144 or 156 volts to the thing. Not sure you'd like to take it beyond like 4800 rpm but it will put out a s.it load of torque.

Pete

Looks like you get to be the first to use a 13 GE monster motor. Would love to hear how it performs. Putting it in a truck or something like that or a little old VW?

Pete

[Georgia Tech]

Well I hope to put it in a 1966 GT mustang !

[Jimdear2]

Originally Posted by gottdi

Looks like you get to be the first to use a 13 GE monster motor. Would love to hear how it performs. Putting it in a truck or something like that or a little old VW?

Pete

Georgia Tech,

Well we may not qualify since our 13 inch GE is in a pulling tractor, but we have a shorter version of that motor installed. We ran it last year one time at 72 volts and wayyyyyyy overgeared and it still drug a 8000 weight transfer sled 150 feet. Torque up the kazoo. We dont expect more then 3500 to 4000 rpm at the expected sagged voltage of 110 to 120 volts and have geared it for.

We are putting the finishing touches on a 170 volt 600 amp Headway battery for this year, will go to 800 amps next year.

We have a adjustible advance set up so we can find what is best (we can go up to 10 degrees).

That motor is half the price I paid for ours and is longer (ours has at least 4 inch less in the frame). It looks like this one might have an aluminium drive end bell, ours is cast iron and HEAVY. Our shorter motor weighs 305 pounds

If we didn't already have one I would be driving to Elgin IL right now to buy this one.

The 9 inch they have for $125.00 is pretty nice as well.

That thing would move an 8000 pound lift truck around at a good clip at 36/48 volts. Just think what it will do with a 3000 pound truck at 144 + volts.

That is a BIG motor, make sure you have the room and suspension to carry it.

[Georgia Tech]

Originally Posted by Jimdear2

Georgia Tech,

Well we may not qualify since our 13 inch GE is in a pulling tractor, but we have a shorter version of that motor installed. We ran it last year one time at 72 volts and wayyyyyyy overgeared and it still drug a 8000 weight transfer sled 150 feet. Torque up the kazoo. We dont expect more then 3500 to 4000 rpm at the expected sagged voltage of 110 to 120 volts and have geared it for.

We are putting the finishing touches on a 170 volt 600 amp Headway battery for this year, will go to 800 amps next year.

We have a adjustible advance set up so we can find what is best (we can go up to 10 degrees).

That motor is half the price I paid for ours and is longer (ours has at least 4 inch less in the frame). It looks like this one might have an aluminium drive end bell, ours is cast iron and HEAVY. Our shorter motor weighs 305 pounds

If we didn't already have one I would be driving to Elgin IL right now to buy this one.

The 9 inch they have for $125.00 is pretty nice as well.

That thing would move an 8000 pound lift truck around at a good clip at 36/48 volts. Just think what it will do with a 3000 pound truck at 144 + volts.

That is a BIG motor, make sure you have the room and suspension to carry it.

The motor you got I think has 40 plus com bars. Mine only has 29 bars. This why I need to know about this motor. I really want to use it. I think I can run it on 144 pack voltage I just wanted to see what anyone else results were.

[Duncan]

Hi Georgia

I think you are right and you should be able to run that motor on a 144v battery
despite the small number of comm bars as a controller drops the voltage it supplies to the motor

Go as high a voltage as your controller can take!!!

Where the comm bars could come in is the design speed - you may over-speed it - but at that price if it blows up sell it for scrap metal and get another one - the vendor says he has more
(but note the speed and try to stay under it in future!)


Quote:
Originally Posted by Duncan
Hi Guys

Voltages in series DC motors
- the way I understand it 10 - 20 volts will drive 1000amps through one of these

But you need your 10 - 20 v + the back EMF caused by the motor spinning

So for a given speed and current the motor voltage is going to be Back EMF + 10-20

If you don't increase the speed you can't increase the motor voltage

Therefore your battery voltage is irrelevant - except that a higher voltage will result in a lower battery current

Therefore you should use the highest voltage your controller can handle

Brush advance is also related to speed so the same thing

Have I got this right Major?
Hi Dunc,

Not the way I would have said it, but I don't see anything blatantly incorrect with it Thanks for your help

major

[bumblebee]

My neighbor used one of those massive folklift motors like this one in his Buick Roadmaster. It works, but it's a pain in the butt to hook up because the shaft does not have a standard spline... it cost almost $1000 to make the shaft collar and then make the coupler. Plus he had to make custom mounts (they don't make 13-inch EV hoops... no one does

It was also wicked heavy........ he could have added four more batteries in the front if he has just gone with a lighter motor. You can get a nice 8-inch motor for 1/4th of the weight that will move most cars just fine.

Also, if you use that motor, you will have to put larger rear end gears in as well. Those motors don't like to turn over 2500 rpm, so without overdrive or tall gears, the car won't go very fast.... although they do have tons of torque. You could move an Escalade with that one!

[Georgia Tech]

Originally Posted by bumblebee

My neighbor used one of those massive folklift motors like this one in his Buick Roadmaster. It works, but it's a pain in the butt to hook up because the shaft does not have a standard spline... it cost almost $1000 to make the shaft collar and then make the coupler. Plus he had to make custom mounts (they don't make 13-inch EV hoops... no one does

It was also wicked heavy........ he could have added four more batteries in the front if he has just gone with a lighter motor. You can get a nice 8-inch motor for 1/4th of the weight that will move most cars just fine.

Also, if you use that motor, you will have to put larger rear end gears in as well. Those motors don't like to turn over 2500 rpm, so without overdrive or tall gears, the car won't go very fast.... although they do have tons of torque. You could move an Escalade with that one!

OK bumblebee, you might be just the HERO for me. A couple of question my I ask.

Whats the Pack voltage is he running at?

How well FAST does the car go?

What kind of controller is he using?

Since he has driven it has he notice anything with the brushes or Com

I have one of these motors in my garage as well! I have a GOOD shaft coupler for it!

[DavidDymaxion]

Dennis Berube on the NEDRA Yahoo list runs GE 13 inchers. He has done close to 12 seconds in the 1/4 mile with a 3800+ lb truck, and 7's in the 1/4 with his dragster. He does tune his motors but keeps the details a secret.

Originally Posted by Georgia Tech

Please I am begging as HARD as I can!!! Please someone I know has used this Motor in an EV or application before! Please I know someone has!
Can someone tell what details of the setup? How well does this motor perform? Poor ?? Great??
Please I have look for years look for someon who has put this in a car! Still I have not found one but I know someone has used this motor brfore!

PLEASE SHARE what you have found!


http://cgi.ebay.com/DC-Motor-375015-...item2a0e04b2b4