| Owner | Ben Apollonio | ||||||
|---|---|---|---|---|---|---|---|
| Location | Shirley, Massachusetts United States map | ||||||
| Web/Email | WebPage | ||||||
| Vehicle | 1974 Porsche 914 | ||||||
| Motor | Advanced DC FB-4001A Series Wound DC Bought used | ||||||
| Drivetrain | Stock 5-speed 901 transmission with ElectroAuto adapter & hub. CenterForce clutch. | ||||||
| Controller | Cafe Electric Zilla Z1K So much nicer than my old T-Rex in so many ways. You really have to feel it to fully appreciate it. | ||||||
| Batteries | 54 Thunder Sky LFP-100AHA 100Ah, 3.20 Volt, Lithium Iron Phosphate Pre-yttrium | ||||||
| System Voltage | 173 Volts | ||||||
| Charger | Elcon 1500W PFC Voltage limit set to approx. 3.45V/cell | ||||||
| Heater | 1500W Ceramic Single core (this isn't a winter car) | ||||||
| DC/DC Converter | Elcon 30A, 132-168Vin Regulation seems slightly unstable. Makes noise under heavy acceleration and sometimes triggers windshield wiper circuit. Was a DCP 300W until it blew up Nov 2012. | ||||||
| Instrumentation | LinkPro 1000A ammeter for motor current Custom BMS | ||||||
| Top Speed | >90 MPH 70-75 is plenty fast enough for me. It's the acceleration that counts. | ||||||
| Acceleration | 0-40 in 2.8 seconds (2nd gear) 40-60 in 3.2 seconds (3rd gear) Smokes tires | ||||||
| Range | 60 Miles (96 Kilometers) 1.2-1.5Ah/mile depending on driving conditions and speed. Typically keep it at 60-65 on the highway. Never discharged below 20% SoC. | ||||||
| Watt Hours/Mile | 280 Wh/Mile From the AC grid, measured using a kill-a-watt. Average over 3000 miles of mixed country, interstate, and stop-and-go driving. | ||||||
| EV Miles |
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| Seating Capacity | 2 | ||||||
| Curb Weight | 2,400 Pounds (1,090 Kilograms) Stock weight was 2100lbs GVWR is 2690lb | ||||||
| Tires | Continental ProContact with "EcoPlus" low rolling resistance. 195/65R15 | ||||||
| Conversion Time | 9 years | ||||||
| Conversion Cost | $13K for conversion $3.5K for Zilla upgrade $23.5K total | ||||||
| Additional Features | - Custom BMS for safety, monitoring, & balancing - Netgain WDT-CP hall effect cable pull throttle - Conversion leaves front and rear trunk space untouched - Aftermarket audio amp with aux input cable for iPod and subwoofer from 914rubber.com - Zilla cooling: Salvaged dual-fan radiator and Laing DDC-1 pump | ||||||
| Roadworthy since March 2012 Heater added May 2012 Upgraded from T-Rex to Zilla November 2012 Installed new DC/DC January 2013 New charger September 2013 New suspension October 2013 Broke 2nd gear June 2014; repairs completed October 2015 Controller was originally a used T-Rex 1000 (internally de- tuned to 800A) for the first 1670 EV miles...until it blew up 10/5/12 (despite an overhaul by Peter Senkowsky in June 2012)! Original Custom Charger (1st 5000 miles): Microcontroller servos a motorized variac and uses BJTs as linear post-regulators for constant-current output and AC ripple cancellation. 5A max output. Approx. 87% efficiency and 77% power factor, measured using Kill-A-Watt and LinkPro meters. | |||||||
1974 Porsche 914
“Ben's Electric 914”
Last Updated 11-14-2015
Copyright © 1997-2024 by Mike Chancey