36v 1000W Motor Need Help

[mcwne]

I'm planning to build an e-bike soon using a chopper bike. I was thinking about buying this kit http://www.monsterscooterparts.com/36-volt-1000-watt-motor-controller-throttle-premium.html

The Specs:
Motor
TYPE: Brush
VOLTAGE: 36 Volt DC
RATED SPEED: 2600 RPM
RATED CURRENT: 32 Amp
SPROCKET: #25 Chain 15 Tooth
OUTPUT: 1000 Watts
ROTATION: Clockwise


Controller
Input Voltage: 36 Volt
#Conrol Voltage: 1-4 Volt
Output Current: 30 Amp
The 36 Volt 25-30 Amp diagnostic voltage controller is an exclusive Currie Technologies design, with Currie's PWM Smart Power Microprocessor. The controller is fully water- proof, with brake inhibit power cut off.

I was just wondering if this would be good enough to get a chopper bike to go 30mph. The Back wheel would be 20". As for the gear ratio Im not sure about what would be a good ratio. And do you think it would be able to carry two people? Roughly 320lbs. If you could give me some good input that would be great!

 

[flyinmonkie]

mcwne,

I'm now using that motor in the build on the link below. I am using a different controller though as stated in the build log. Not sure if you can still get it from monster scooter parts as they say the motor is discontinued. I got mine from here http://www.thesuperkids.com/10wabrmofors.html

http://endless-sphere.com/forums/viewtopic.php?f=28&t=19841

I am using lipo bats and they are 50v off the charger and I am seeing about 28 mph with my current gearing in second gear. I haven't used 3rd yet as the chain lines interfere with each other.

Have read through to see the controller and gearing I am using. With the right bats it should give you 30 mph, but I don't know about carrying 2 people. I don't think it would last long.

Clay

 

[THX1138]

Very, very doubtful unless you weigh like 80lbs. BTW you sure that motor runs clockwise? Every one of those that I’ve seen with the 15t was CCW. In any event
I’m running that motor @ 36vdc with a 40amp controller, an 80t rear sprocket on a 20in rim and it will do 26mph on a fresh charge only and only for a very short distance. Going to lifepo4
Batteries shortly

 

[mcwne]

The more i learn about electric motors Im thinking that they aren't very pratical

 

[neptronix]

The more i learn about electric motors Im thinking that they aren't very pratical

Your train of thought is obviously very, very wrong. Sounds like a trainwreck..

There are motors the size of your fist that can send you rocketing past 30mph. Many guys on this forum are using them, read about RC builds. Go see some youtube videos of high power electric bikes and you will see..

I am going 25mph on a hub motor that runs at 550w nominal, ~1100w peak. I weigh 220lb or so now. You will need some more power to propel your weight.

An alternative is a gutless, loud 50cc motor that will be stinky and limited in power potential. Forget it.
Spend some more time on this site, elsewhere, etc and read about electric motors. I don't think i have heard anyone on here say "i dunno.. i'm gonna go gas", lol.

 

[mcwne]

Well yes there are motors that'll do it but they cost more and then the power source, batteries, will cost more and weigh more. About a gas engine, well i was thinking diesel. Tons of power and id be able to make bio diesel to keep it green and cheap.

 

[neptronix]

Well yes there are motors that'll do it but they cost more and then the power source, batteries, will cost more and weigh more. About a gas engine, well i was thinking diesel. Tons of power and id be able to make bio diesel to keep it green and cheap.

Do your research. I just paid $150 for my MAC motor that does 25mph out of the box, with 30mph at 48v.
Burning any liquid fuel is not green. Ask the person behind you that gets to smell the uncatalyzed exhaust fumes. Still emits craptons of bad particulates.

Diesel is also slow as hell unless you add a turbocharger.
And i don't know of anyone who is making a diesel motor that would fit on a bicycle or even a motorcycle. They are very heavy as well.

 

[flyinmonkie]

Look at the cost of something gas powered that is currently made and would do the job you want to do. Then look at the cost of fuel, maintenance, and repair of that vehicle.

Keep looking around this forum to see what people are doing. There are a few people pulling their kids around with hub motors. Yes batteries cost, but I would have spent more or as much to get a scooter or moped that does what my bike does and it wouldn't accelerate the way my bike does. I would then also have to buy gas and do oil changes and maintain a gas engine. The cost of charging my batteries is far cheaper than gas and there is no maintenance on my motor and very little on my bike other than would normally be on a bike.

Don't run off so fast, just be realistic about what you want. $200 isn't going to get you a ducati style ebike, just as it wouldn't get you a ducati.

Clay

 

[neptronix]

Also, with gas you are kinda limited to 50cc.
That's about 4 horsepower maybe?

Check this bike out, it's running at around 2000-2500 watts. That's about 3 horsepower
[youtube]guYPORM3nfw[/youtube]

At about 3 minutes in, he hits 40mph.
That is not even the tip of the iceberg for eBikes either. That is just what my ~$150 motor is capable of with a good gear set in it.

 

[recumpence]

I agree with all said.

One thing to add as well, you mentioned better batteries weigh more. That is not true. Generally speaking, the better the battery chemistry, the less it weighs per AH, not more..........

Stay here for a while and do some reading. Electric is truly the way to go with a bicycle. If you were looking for a motorcycle, I would lean toward gas. But, for light weight EVs like bicycles, electric is, by far, the best choice on many fronts.

Matt

 

[McDesign]

I'm ordering this one - it's finally available - http://www.thesuperkids.com/15wabmcbr24m.html

Forrest

 

[mcwne]

I'm still not too convinced. I will say Electric would be good for short distances. I want to go 35-40 miles not 10- 15. As for burning and releasing stuff, I want to run straight vegetable oil or bio-diesel. Both come from plants, which means, the CO2 released is the same CO2 the plant sucked up. So, no new CO2 is being released. Now for cost.

Electric:
Motor Kit- $490- 35lbs 1500w
Batteries- (3) $369- 108lbs
Total- $859- 143lbs

Diesel:
211cc Engine- $500- 73lbs
Clutch- $50- 5lbs
Total- $859- 78lbs

From the numbers diesel is looking better. Now for the people who freak out and say "but only 49cc engine is legal!" Well only 756 watt motors are legal. And everyone is talking about using 1000w+ motors. So we pretty much follow one rule, make it look legal. So, overall i am leaning towards bio-diesel then electric. I can still be changed to electric but im not being convinced.

 

[neptronix]

I want to run straight vegetable oil or bio-diesel. Both come from plants, which means, the CO2 released is the same CO2 the plant sucked up. So, no new CO2 is being released. Now for cost.

haha sure, as if the earth would naturally burn all vegetation into the sky naturally. CO2 is not the only harmful substance coming out of burning things, by the way. But don't let me get off topic here.

Electric:
Motor Kit- $490- 35lbs 1500w
Batteries- (3) $369- 108lbs
Total- $859- 143lbs

Woahhh.. You are absolutely looking at the wrong stuff here. Many members here are looking at having setups that are about 20-30lbs total.

A DD hubmotor kit can run you under $200 that can provide 2000w+ here on the forums. That kit is about 16lbs total, controller, throttle, and motor.

You are looking at lead acid batteries which nobody is using anymore. We have all switched to lipo or lifepo4, except for a few outliers who still like nimh and lead for some reason. Those are extremely heavy, do not last long, and have terrible output.

Like me and others have said, you absolutely need to do more reading and find out what people are actually using on here.
By the way, i have a 30 mile pack, it is about 12lbs and cost me well under $400.

From the numbers diesel is looking better. Now for the people who freak out and say "but only 49cc engine is legal!" Well only 756 watt motors are legal. And everyone is talking about using 1000w+ motors. So we pretty much follow one rule, make it look legal. So, overall i am leaning towards bio-diesel then electric. I can still be changed to electric but im not being convinced.

haha, good luck making a 211cc diesel engine look OR sound like a 50cc, also good luck fitting it on your bike, I think the largest one anyone has fit on the frame was about 80cc.

 

[neptronix]

By the way..

[youtube]_f84YC89E2E[/youtube]

80cc 2 stroke getting owned