| Owner | Jeremy Vining | ||||||||
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| Location | Seattle, Washington United States map | ||||||||
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| Vehicle | 1974 MG B GT Bought the car in Winter 08' as a classy commuter with the hope to convert to electric at it's end of life. Engine crapped out a few months later and didn't get motivated to start the conversion until Summer 2013. | ||||||||
| Motor | HPEVS AC-50 3-Phase AC Keeping stock 4-spd rwd transmission and clutch. Adaptor plate and hub by www.electriccarpartscompany.com | ||||||||
| Drivetrain | 4 speed, RWD | ||||||||
| Controller | Curtis 1238 Liquid Cooled with EV West Chill Plate. Micheal with EV West has been a pleasure to work with. Pretty stock settings. Only regen on neutral with Curtis PB-8 linked to accel pedal. Future Plans to swap out with a Prius pedal and wire legacy choke control for manual regen control. | ||||||||
| Batteries | Automotive Energy Supply Corporation, 3.80 Volt, Lithium-Ion Using the Renault influenze bankruptcy pack from EVTV "seperated" into (3) 120V packs and wired in parallel. Couldn't have been more easily setup for the Curtis 1238. 3 parallel packs of 16S2P Fully charged Pack total: 134V, 180AH Effective charge voltage is 131V due to controller limit. | ||||||||
| System Voltage | 130 Volts | ||||||||
| Charger | EMW Smart Charge 12000 v12 PFC, air cooled unit. Adjustable Constant Current. Successfully charged at 120V and 208V; 10-30A Constant Voltage Topping Off stage is not working properly. | ||||||||
| Heater | in-line water, not installed. Low priority until fall | ||||||||
| DC/DC Converter | Iota 400W converter with stock 12V battery backup | ||||||||
| Instrumentation | Curtis Spyglass (Volts, Amps, RPM, Motor Temp, Ctrlr Temp) Stock Tachometer (driven by Curtis RPM signal utilizing opto-isolator) Stock Fuel Gauge SOC% (driven by Zeva Fuel Gauge Plus) Eventually one of the following: -EMW Android -jld404 | ||||||||
| Top Speed | 90 MPH (144 KPH) Calculated top speed - 105mph @ 6000rpm in 4th gear. Have hit 90mph briefly under ideal freeway conditions, approximately 5K rpm in 4th gear. | ||||||||
| Acceleration | Feels peppy enough, easily keeps up in traffic. 2nd Gear - Quick off line and gobbles up hills 3rd Gear - Typical cruising gear 0-50mph 4th Gear - Highway/Freeway Speeds | ||||||||
| Range | 65 Miles (104 Kilometers) 100 mile calculated Range at 100% DoD - will never attempt. 65 Mile longest run with 10% city, 50% freeway speeds (60mph+), 40% backroad rolling hills 30-50mph. 105V final voltage. | ||||||||
| Watt Hours/Mile | 280 Wh/Mile 240whr/mi - Very early measurements at 35mph average speed. 50% stop and go neighborhood and 50% highway 60mph+. Gentle acceleration 280whr/mi typical with normal driving keeping up in traffic | ||||||||
| EV Miles |
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| Seating Capacity | 2 plus useless rear bench | ||||||||
| Curb Weight | 0 Anticipating Net Addition of ~100lbs probably all in back. Need to weigh it now that its on the road. | ||||||||
| Tires | Stock, wire | ||||||||
| Conversion Time | 10 months at about 1-2 days a month since 8/13 until running. | ||||||||
| Conversion Cost | ~$14k + donor car when all said and done | ||||||||
| Additional Features | Long Wish List - Would like to implent Regen for both brake-assist via transducer and manual adjustment utilizing choke cable that will no longer be needed. | ||||||||
| September 2013 - Motor is installed. November 2013 - Finalizing battery box sizes and locations. February 2014 - System wired up to test with used lead acid from battery surplus. March 2014 - Better World battery packs from Renault could not have become available at a better time April/May 2014 - Fabrication of Custom battery mounts and "final" system wiring. June 2014 - Pulled out a lot of hair debugging inconsistent motor spin and control. Turns out the disk mounted on the end of the motor shaft has been rubbing the RPM optical encoder. Replaced for the 3rd time and will not be using clutch until encoder/disk clearance can be maintained. February 2015 - Replaced Motor thrust bearing retention lock nuts with guidance from HPEVS. Eliminated wear on RPM optical encoder and reduced motor vibration. May 2015 - Wired stock Tach gauge through opto-isolator to Curtis tach signal. Installed JLD404 shunt and Zeva fuel gauge for Fuel SOC%. Installed AVCR module to spoof J1772 pilot and proximity signals for charger compatibility with commercial EVSE stations. August 2017 - Rolled over 100k miles, 5k all electric. | |||||||||
1974 MG BGT
“MGBEV GT”
Last Updated 05-08-2018
Copyright © 1997-2024 by Mike Chancey