Frame Bracing MockupBracing MockupMetal Frame Bracing MockupMetal Frame Bracing MockupMetal Frame Bracing Mockup3D CAD mockup of frame braces, motor and3D CAD mockup of frame braces, motor and3D CAD mockup of frame braces, motor and3D CAD mockup of frame braces, motor and
OwnerAndrew Rivers
Owner's Other EVPukka
LocationCordova, Tennessee United States map
Email email image
Vehicle1984 Kawasaki GPz 900R / ZX900A
This bike has not been running for a number of years and appears to have been stored outside for the majority of that time. The engine block has a baseball size hole in it from a rouge connecting rod. Most of the other parts, including the ones I need for the conversion, are in reasonable shape though.
Motor AC-20 3-Phase AC
54lb (24.5kg) 40kw peak (54hp) 89% peak efficiency
DrivetrainSingle, direct reduction 420 chain drive
15:87
ControllerCurtis 1238-7501
24-96V, 130v max
62.3kva peak (2min), 26.6kva continuous (60min)
550A rms (2min), 175A rms continuous (60min)
Batteries90 Nissan Leaf, 112.50 Volt, Lithium-Polymer
3.75V 32.5ah cells 787g ea. ~157w*hr/kg
Over 1500 W/kg
30s3p configuration for 112.5v nominal at 97.5 ah for ~9.7kw*hr nominal.
156lb (70.8kg) pack weight
40L total cell volume
Will be monitored with 3 MK3x12LD Digital Lithium Regulators
System Voltage113 Volts
ChargerElcon TCCH-144-08
or similar
Heaternone
DC/DC Converter undetermined
InstrumentationCycle Analyst
Curtis spyglass
Rudman Bus Display Meter
Top Speed105 MPH (168 KPH)
Gearing limited to 105mph. With a 5.8:1 ratio and 17" wheel
AccelerationShould be nice with a 5.8:1 ratio
Calculations say 0-60mph in 3.3sec
0-80mph in 6 sec
0-105mph in 25 sec
Range85 Miles (136 Kilometers)
Calculations say 50mi at 80mph, 80mi at 55mph to 80% DOD
EV Miles
Start:11,425 Miles (18,382 Kilometers)
Current:11,425 Miles (18,382 Kilometers)
Total:0 Miles (0 Kilometers)
Seating Capacity2 adults
Curb Weight430 Pounds (195 Kilograms)
Should be 450lb or lighter.
Was ~566lb (257kg) stock and wet.
Rolling chassis weighs 180lb (81.8kg)
TiresWill be Michelin Pilot Road 4
Front: 120/70-17 W
Rear: 150/70-17 W
Conversion TimeAs fast as funds permit. Started April 21, 2012
Conversion CostLooking like ~$9000 in the end.
So far.
Bike + shipping: $914.93
Magura throttle w/ dummy grip: $57
Motor and controller: $1950 + $130 shipping
New front forks: $354.99
Additional FeaturesThe bike will have full LED lighting, regen as a rear brake and on board charging. Enhanced air cooling for the motor will be in the works once the bike is "finished".
(May 17 2012): I have the bike down to a rolling chassis now. I am currently working on getting the main frame repainted, the suspension and brakes refurbished and the motor mounts finalized.

(May 26 2012): Main frame re-painted. Considering battery voltage increase to 145v-158v with 44-48s. Supposedly higher voltages are okay on the ME0913 especially considering max rpm will coincide with max speed. Which at 80+mph will neither be frequent or sustained.

(December 4 2012): Received the motor and controller from the 2012 ARC-EV race bike with a couple custom controller features and a fiberglass airscoop. It will be a substantial improvement in power handling and heat tolerance over the ME0913 which I will sell shortly.

code by jerry