So I have my Warp 9 mated to my tranny, a T-REX 1000 A controller, plenty of 2/0 cable, and a clean car ready to be converted. The next step is to pick and order the batteries. The goal is to go 30 miles at highway speeds (60 mph). Since I can’t afford Lithium’s, it looks like I need to use floddies. I would like to keep the battery weight down to around 1100 lbs to limit the need for suspension upgrades.
With this in mind, I tried 144V of US Battery 8VGCHC XC the EV calculator shows my conversion would get about 18 miles. I used an RX7 which has very similar characteristics. This assumes low rolling resistance tires, 144V of T-875’s to 80% DOD. If I used US 8VGCHC XC, they have 10% more capacity over the T-875’s, getting me to 24 miles. Quite a bit shy of the 30 mile goal and I would not be able to use Air Conditioning. According to the calculator, I’d need 1465 lbs of 6V T-105’s for 35 mile range. That’s 24 rather large batteries. There goes the back seat!
As a real-life compariason, I found a Fiero which uses low resistance tires and 120V of T-125’s and claims a 65 mile range at 60 mph. Plugging these into EV calculator shows a 37 mile range. I used a Ford Escort which is very close to the Fiero in weight and drag. Not sure I can believe the calculator.
Note the weight of a Fiero is the same as a 240sx but it’s drag coefficient is 0.35 compared to 0.31 for the 240sx.