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  #61  
Old 04-02-2012, 10:03 AM
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frodus frodus is offline
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Default Re: Converting a large motorcycle: Honda ST1100

Nice place for it! Sweet looking J1772
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  #62  
Old 04-02-2012, 04:43 PM
StanSimmons StanSimmons is offline
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Default Re: Converting a large motorcycle: Honda ST1100

My charger kit from EMW came in today. I was really excited to see it arrive...

until I opened it and discovered that they had accidentally sent the wrong version. I was expecting the water cooled version and as you can see it came with the air cooled heatsink. It is also missing at least one part, I'll have to pull the BOM off their website to see what all is missing.

I've got an email out to Valery, and I'm confident that he will get this straightened out quickly.
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File Type: jpg EMW Charger Kit.jpg (94.7 KB, 17 views)
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  #63  
Old 04-06-2012, 01:26 AM
StanSimmons StanSimmons is offline
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Default Re: Converting a large motorcycle: Honda ST1100

I bought a ST1100 transmission off of ebay for less that I could get just the transmission output shaft by itself. It took about 30 minutes to get it all apart and remove the shaft. This leaves my original motor and transmission intact, which should make it easier to sell. Below is the pile of leftover gears.

Now I need to take some measurements of the shaft and get it machined for some bearings and a pulley. I did a really crude mockup of the plate I need to build to mount the face of the motor and front bearings for the jack shaft. This will give me a better idea of what diameter pulleys I can use. The frame member is going to be the limiting factor there.

I put a piece of tape on the shaft, and on the tire, and spun the shaft while watching the wheel spin. Ripperton was right, I measured a 2.83:1 ratio for the rear gears and a 6'9" circumference on the tire.
Attached Images
File Type: jpg Tranny.jpg (48.4 KB, 9 views)
File Type: jpg tranny bits.jpg (78.5 KB, 8 views)
File Type: jpg Transmission Output Shaft.jpg (31.3 KB, 7 views)
File Type: jpg Tire and Tape.jpg (91.0 KB, 7 views)
File Type: jpg mounting mockup.jpg (64.8 KB, 8 views)
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Last edited by StanSimmons; 04-06-2012 at 01:29 AM.
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  #64  
Old 04-12-2012, 10:16 PM
RogerK RogerK is offline
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Default Re: Converting a large motorcycle: Honda ST1100

Nice to see your progress Stan. I now have my battery management system, cable, chrger and everything but the 70 AH batterues, They are due in soon. The issue I have is finding time. My bussiness got very busy. But with the nice weather I am trying to get this done and on the road. I will post an update soon.
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  #65  
Old 06-04-2012, 08:34 AM
RogerK RogerK is offline
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Default Re: Converting a large motorcycle: Honda ST1100

How's the progress Stan? I am on the home stretch with my project. The batteries finally came in. All parts are painted and polished. Came out decently but not at the profesional level. I started assembly this weekend. I'll post on my site so you can see the progress.
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  #66  
Old 06-12-2012, 11:15 AM
Whitehawk Whitehawk is offline
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Default Re: Converting a large motorcycle: Honda ST1100

Quote:
Originally Posted by EV-propulsion.com View Post
Stan-The single motor is 400lbs.
Gor-I will send you info

Mike
Holy unsprung weight...that is like 60% vehicle mass, just in the rear tire??
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  #67  
Old 06-12-2012, 11:28 AM
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frodus frodus is offline
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Default Re: Converting a large motorcycle: Honda ST1100

I think he was talking total vehicle weight for a single motor setup on a motorcycle.

Mark said this later:
Quote:
Originally Posted by markcycle View Post
A dual motor setup with the wheel 75 to 95 pounds (34 to 43 Kg) depending on the wheel.
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  #68  
Old 06-12-2012, 11:56 AM
Whitehawk Whitehawk is offline
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Default Re: Converting a large motorcycle: Honda ST1100

Quote:
Originally Posted by frodus View Post
I think he was talking total vehicle weight for a single motor setup on a motorcycle.

Mark said this later:
Okay, it was just 7 pages of posts, my eyes didn't pick it up. Protean Electric has an in wheel motor, claims 590 ft-lb torque about the same weight at 68lbs. That is still a problem for a road vehicle, probably okay for trucks. But that is all talk, anyone with experience deploying the extra unsprung mass on their bike?
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  #69  
Old 06-12-2012, 02:30 PM
markcycle markcycle is offline
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Default Re: Converting a large motorcycle: Honda ST1100

Quote:
Originally Posted by Whitehawk View Post
Okay, it was just 7 pages of posts, my eyes didn't pick it up. Protean Electric has an in wheel motor, claims 590 ft-lb torque about the same weight at 68lbs. That is still a problem for a road vehicle, probably okay for trucks. But that is all talk, anyone with experience deploying the extra unsprung mass on their bike?
As Far as using a dual motor system no one has more experience and success with it than Catavolt


Here is what Ripperton had to say about the EnerTrac Dual motor
http://www.diyelectriccar.com/forums...&postcount=612

Here is my test bike nothing but fun to ride

the weight is definitely manageable, it took me a bit to get the shocks set up performance wise 0 to 60 in under 7 seconds she is a blast in traffic, I can weave through traffic with the best of the Ninja bikes. the Total bike weight is 440 pounds with 42 in series 40AH GBS cells

Last edited by markcycle; 06-12-2012 at 03:11 PM. Reason: add information
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  #70  
Old 06-12-2012, 07:28 PM
Whitehawk Whitehawk is offline
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Default Re: Converting a large motorcycle: Honda ST1100

Thanks for the info. Mark!

More wondering I do, not being a pessimist, just pointing out opportunity. I ride a CBR1000F, it has about 130bhp...which is about 100kW. 100kW electric motorcycle?! See... opportunity awaits =)
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