| Owner | Roger White | ||||||
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| Location | Livermore, California US map | ||||||
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| Vehicle | 1986 Pontiac Fiero GT | ||||||
| Motor | ABM 4 DGF132Md-4 3-Phase AC Semi-custom low voltage AC motor from ABM Greiffenberger used in the forklift industry. Bought from ABM Drives Inc. in Ohio, ABM P/N 191.635.000. With the 102V lithium pack and a 650A controller, each motor will put out about 58 Hp, with a peak torque around 120 ft-lbs each. With the 84V lead acid battery and 550A controller, each motor will put out about 45Hp. Peak torque is about 110 ft-lbs each. Max rpm is about 6000rpm. | ||||||
| Drivetrain | Mid engine, Dual AC electric motors belted together and connected to a clutch and the original 5 speed transmission. | ||||||
| Controller | Curtis 1238-7601 72-96V 650A 3 phase AC induction motor controller. One is used for each motor. | ||||||
| Batteries | 64 CALB/Skyenergy SE100AHA, 3.20 Volt, Lithium Iron Phosphate Arranged 32S2P. Using centralized mini BMS from Clean Power Auto. | ||||||
| System Voltage | 102 Volts | ||||||
| Charger | Manzanita Micro PFC-30 Universal input 30A in, 40A out | ||||||
| Heater | DBK HR series PTC heater (bought from KTA). Works okay with the air being recirculated. Pulls between 1.0 - 1.5kW depending on the fan speed. | ||||||
| DC/DC Converter | Curtis 1400E 72/96-1211 22A output | ||||||
| Instrumentation | Speedometer Tachometer Main battery voltmeter 12V battery voltmeter Motor/Controller temperature Battery state of charge gauge Shift light (programmable) Check Engine light for fault codes All the instrumentation is OEM and driven through an opto-isolator by the Curtis 1238R-7601 controller. | ||||||
| Top Speed | 120 MPH (193 KPH) Not yet tested. Highest speed run so far is 90 mph and it was still accelerating pretty quickly. The simulation shows a top speed around 120 mph. | ||||||
| Acceleration | Measured data with lithium pack (1 cell removed from each pack for NEDRA voltage class): 0-60 mph <8.0 sec (measured at 30% SOC with two adults) Set NEDRA SC/G record on 7-Jun-13: 1/8th mile: 10.063 sec @ 68.904 mph 1/4th mile: 15.766 sec @ 86.401 mph Measured data with lead acid pack: 0-60 mph in about 11 sec Will do a modest burnout in first gear. NEDRA SC/G record set on 17-Nov-07 with both battery packs in. I ran 4 runs with no charging (the fouth was just as quick as the first) and still could run over 20 miles afterwards. 1/8th mile: 11.409 sec @ 59.824 mph 1/4th mile: 18.028 sec @ 74.269 mph | ||||||
| Range | 50 Miles (80 Kilometers) Estimated with lithium pack: ~40 miles on the freeway ~60 miles around town Measured with the lead acid pack: ~25 miles on the freeway ~45 miles around town | ||||||
| Watt Hours/Mile | 370 Wh/Mile Measured at the wall for normal driving at 60 mph including full accelerations. | ||||||
| EV Miles |
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| Seating Capacity | 2 adults | ||||||
| Curb Weight | 3,180 Pounds (1,445 Kilograms) Estimated Weight with Lithium pack: Total 3180 lbs, Front 1370 lbs, Rear 1810 lbs, about 440 lbs over the original weight. Measured Weight with Lead Acid pack: Total 3780 lbs, Front 1670 lbs, Rear 2110 lbs, Same 44%/56% weight distribution as original but about 1000 lbs heavier. | ||||||
| Tires | Continental ProContact EcoPlus 205/60R15 | ||||||
| Conversion Time | About 600 hours | ||||||
| Conversion Cost | Total around $21k. Motors $1k each. Batteries + BMS $9k Donor car $4k Controllers $1k each Charger $2k Suspension and brake upgrades $1k Wiring and misc. parts $1k Note this cost is only for the car in its present configuration. This does not count money spent on the previous lead acid battery pack. | ||||||
| Additional Features | The brake pedal controls regen braking and blends it with the mechanical brakes. A switch on the clutch disables the regen braking so it is easy to shift when the clutch is pressed. For safety, a separate start button was added that must be pressed after the keyswitch is turned on (and the driver can not be on the throttle). For fun, a high performance switch was added to switch between normal driving mode and a more aggressive drag race mode. | ||||||
| This car was built using 84V AC forklift motors and controllers which are cheaper than some other AC options. I got this on the road for the first time in August 2007. Since then I have had to improve the motor mounts after the motors ripped themselves loose and replace the battery they damaged. I am slowly working on the rest of it, but driving it as I go. I had some problems with the Odyssey 2150 batteries. I vented one when running around 1400A from one pack repeatedly for relatively short cycles (~30seconds) with short rests (~30 seconds). I also damaged one due to charging imbalances. I installed Rudman regulators on the front pack and the powercheq dc/dc balancers on the rear pack and have had no problems since. Update January 2012: I have blown the transmission for the second time. It is clear I need a stronger transmission. In the process of finding one. Update August 2012: I put in the Getrag 5 speed in May and it has worked fine so far. My lead acid pack wore out and I upgraded to CALB SE100AHA cells and changed the controllers to the 1238-7601 model at 157,710 miles. | |||||||
1986 Pontiac Fiero GT
Last Updated 06-18-2013
Copyright © 1997-2013 by Mike Chancey