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Old 01-04-2009, 07:28 PM   #41 (permalink)
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Acceleration from a stop on flat dry road, with the e-wheel is probably 30-40 seconds. It feels very long as the guy behind me is probably going to be on the horn.
Moderate Hill climbing once I am up to 30MPH is reasonable, with only a drop of 4-5 MPH.
If I had the money, I would have put in a bigger system, with a top speed of 40-45.
The controller is a Curtis that can do 400A max, but the motor life would be severely reduced, and the AGM31 batteries also would have issues, so I set the current limit at 200A.
I typically use the e-wheel when city driving, or on back roads with little traffic.
If I were to do it again, I would do it differently for sure.

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Old 01-05-2009, 02:29 AM   #42 (permalink)
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Quote:
Originally Posted by MD2000 View Post
Acceleration from a stop on flat dry road, with the e-wheel is probably 30-40 seconds. It feels very long as the guy behind me is probably going to be on the horn.
Moderate Hill climbing once I am up to 30MPH is reasonable, with only a drop of 4-5 MPH.
If I had the money, I would have put in a bigger system, with a top speed of 40-45.
The controller is a Curtis that can do 400A max, but the motor life would be severely reduced, and the AGM31 batteries also would have issues, so I set the current limit at 200A.
I typically use the e-wheel when city driving, or on back roads with little traffic.
If I were to do it again, I would do it differently for sure.
Your vehicle only weighs in around 2k lbs doesn't it? I've done some impromptu towing with my Burgman that put me over 2k GVWR (Yeah, yeah, I know ) and I was still able to pull away faster than that at half throttle, which is ~9-10hp at the wheel, going by a dyno chart and the revs I was pulling. On flat ground no less.

But money is a sticking point, isn't it? It's basically the only reason I don't yet have electric conveyance.
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Old 01-05-2009, 02:51 AM   #43 (permalink)
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Your vehicle only weighs in around 2k lbs doesn't it? I've done some impromptu towing with my Burgman that put me over 2k GVWR (Yeah, yeah, I know ) and I was still able to pull away faster than that at half throttle, which is ~9-10hp at the wheel, going by a dyno chart and the revs I was pulling. On flat ground no less.

But money is a sticking point, isn't it? It's basically the only reason I don't yet have electric conveyance.
Exactly; that's what a transmission will get you. :-)
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Old 01-05-2009, 03:27 AM   #44 (permalink)
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Exactly; that's what a transmission will get you. :-)
10hp at the WHEEL. That tends to make the transmission gains kinda moot.
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Old 01-05-2009, 03:35 AM   #45 (permalink)
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10hp at the WHEEL. That tends to make the transmission gains kinda moot.
Your Burgman must be sick. Suzuki claims 34hp, and the 250cc Helix puts down 13hp at the wheel.
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Old 01-05-2009, 04:13 AM   #46 (permalink)
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Your Burgman must be sick. Suzuki claims 34hp, and the 250cc Helix puts down 13hp at the wheel.
I'm guesstimating my actual output, as opposed to peak, by dyno charts, and my throttle-position vs. RPM. Peak HP in the RPM range I was in is around 13-14.

As for HP, Suzuki claims the crankshaft HP, which is substantially higher than wheel. The '07 and up has more HP than my '06 due to a larger stroke. Mine is ~30 at the crank, and peaks 19 at the rear wheel.

Either way, it's got some damn fine torque for a bike it's size. Now I just need a new drivebelt. (No, not because of my towing adventure, because I'm several thousand miles over the suggested change interval, and I haven't been nice to the belt before the towing ).
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Old 04-10-2009, 08:37 PM   #47 (permalink)
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Red face HP what HP?

Found a hub motor but in my state ( of ignorance ) have no idea what kinda HP i would get. I'm thinking a ground up build and wish i could get an AC motor - braking gains . But found some DC that sound ok. Bulk purchase sadly but you do what you must.
Heres the Info if someone could give a newbie some hp numbers that would be great!
DC 72 V, 1500-5000w, 500 - 1000rpm
83% efficiency
on a max of 14 inch rim
Oh and its bushless
has one side shaft
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Old 04-10-2009, 09:28 PM   #48 (permalink)
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1 HP = 746 watts, so you have about 5.5 HP.

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