7XL gearing, ~45mph ?

[Finnster]

Hmmm, yes, all very good points. I guess this just shows just how difficult calc'ing these things are. For what its worth, the truck is usually still accelerating as I'm holding the radar, but is topping out as its getting too close to radar. The hard part is finding a long enough runway to really see where it tops out, but its close.

The calc is very good tho, don't get me wrong, great job on it. Its very handy and seeing the gear ratios in one place is great. I guess its that one can't get too wrapped up in the exact top speeds as there are so many variables.

[zeropointbug]

true, true... I am going to post a test of one of my 5s1p A123 packs.

I just used my old dual 820 dewalt motors to give it a workout, i just kept blipping the throttle to 100% and back down (brakes).

The results are actaully better than i expected, for a 2.3Ah pack @16.5 volts Nom.

The current peaks at 91 amps (39 C), that's alot for such a small Ah rating.

-Also, the highest current spike, the voltage went down to 12.6 volts.

-I will be running a 5s2p pack, so the current will be half that...

Here is a link to my Picasa album: Picasa Album