Originally Posted by matthieu149
If weight and space allow it, I'll go with the 11' and the soliton 1, otherwise I will go with the 9' and soliton JR.
Battery weight will of course be important, I would lite to match my battery max discharge with my motor size!
If my battery pack cannot supply enough amp to max out the 11', would the additional low end torque worth the additional weight?
It looks to me like a WarP 11 will fit but without a lot of clearance. The WarP 9 fits fine although it it extends farther into the engine compartment than I was estimating.
The 12A motor produced 105 hp (78 kW) and 105 ft-lbs (144 N-m).
The 13B motor produced 135 hp (101 kW) and 135 ft-lbs (185 N-m).
A Warp9 can produce 105 ft-lbs at somewhere around 600 to 650 amps and over 150 ft-lbs at 1000 amps. At 1000 amps and 192 volts a Warp9 will be producing approximately 170 hp at the shaft. At 600 amps and 192 volts will produce approximately 120 hp. That is estimated, probably someone has better numbers but those are going to be representative. With that in mind I chose a WarP9 rather than the WarP11 for my project. I am concerned that the stock drive train will be stressed even with a WarP9. The WarP9 should be plenty for this car as the performance should be a bit better than with the 13B engine unless the car gains a lot of weight from too many batteries. I am using 54 or 56 100AH cells which will end up adding only a few pounds over the stock weight of the vehicle. I ended up with a Soliton 1 rather than a Jr because you can turn down the current on a Soliton 1 but you can't turn up a Jr above 600 amps.
I am about 90% confident that a WarP 11 will fit, but the extra weight and the weight of the extra batteries to get the higher currents and the fact that the drive train wasn't designed to handle that power level it seemed more prudent to use the smaller motor.
I think the AC50 and 650A Curtis would also be excellent in this car although it is on the high end of the weight scale for that setup.
I think the additional low end torque of the WarP11 would be wasted destroying clutches and smoking the tires.