motor mountscomponent traymotor/transbatteries in the trunk
OwnerDavid Ladd
LocationNovato, California United States map
Vehicle1995 Saturn SL2
MotorNetgain Warp9 Series Wound DC
ControllerSynkromotive DC750
It's set at 500a battery, 650a motor right now.
Batteries48 CALB/Skyenergy CALB 130ah, 3.20 Volt, Lithium-Ion
all 48 cells are in the trunk. 36 in a sunk down battery rack,
12 against the back seat.
System Voltage153 Volts
ChargerManzanita Micro PFC30
Set up with an L6-30 plug (220v/30a), and adapters for the
most common outlets. I also have a J1772 adapter box from for use with public charging stations.
Heatertwo 1500w elements in the dash, wired together they pull
14a at 150v for 2100w.
DC/DC ConverterIota DLS-45
InstrumentationBluetooth EV Display from using my
DroidX on the dashboard. I have battery amps, pack voltage,
Ah remaining and Wh/mi showing on the screen. Also now
have the stock tach functioning again, but it reads about 30%
Top Speed70+
Accelerationupdate with Synkro at 400a (750a motor):
0-40 = 8.6 seconds
0-60 = 16.4 seconds

With old Logisystems set at 300a:
0-40 = 13 seconds
0-60 = 26 seconds
Range50 Miles (80 Kilometers)
to 80% DOD if driving with an intent on range. Normal
driving is closer to 40 miles, and heater usage can suck the
power quickly as it pulls 14a when running.
Watt Hours/Mile320 Wh/Mile
usually average between 290 - 350.
Steady 55 on the freeway is around 250 Wh/mi.
Stop and go in town is significantly worse.
Seating Capacity5 adults
Curb Weight2,760 Pounds (1,254 Kilograms)
~350 pounds heavier than stock, and much more rear heavy.
Was 60/40 F/R, now 47/53 F/R.
Tiresstock size - 195/70R15
4/3/13 - upgraded to a Manzanita Micro PFC30 charger. Now I can pump in
30+ amps from 220v. I also added J1772 compatibility.

5/7/12 - re-did broken motor mounts, much more solid but still suffering from
excessive driveline backlash. With the warmer weather I'm now pulling 500a
from the batteries, but have the motor side limited to 500a also to reduce
drivability issues related to the driveline backlash and some clutch slippage
at high current/low rpms.

11/5/11 - replaced Logisystems controller with Synkromotive. Wow, what a
difference. It is smooooth and easy to drive now, exactly what I was hoping
for from the beginning. The Logisystems 750a controller was harsh and
jerky, I needed to use the clutch to get a smooth start. The Synkro is worlds
better. It's currently set up at 400 battery amps. Quick off the line (can spin
the wheels in second if I have the motor current cranked up), average after
that. Easily maintains 65mph on the freeway.

10/19/11 - Bought it already converted but needing work. It's been fixed and
is back on the road, but is not 'done.' Are they ever?

code by jerry