Originally Posted by caveman
... with 6cell 7.2v you just can't beat a well tune mod nitro car with 2 speed in the main straight, that's it.
Two things: First this argument is a bit silly. You can run both types of car if you really want. They both have their advantages and down sides.
Second, caveman has a good point about power and 7.2v systems. At 7.2 volts you can't get that much power for any kind of sane amp draw - At 100A, which is the highest I've heard of for NiMh cells, you only get 720W from the batteries, or 576W at 80% motor efficiency. That's 0.77hp (746W/ Hp), nitro motor's have a higher peak power than that
. However, the electric has a wider power band and is a bit lighter.
Also if you increase the voltage to say 4c Lipo, 14.8v, and have slightly less amp draw, say 80A you get 1,184W or 947.2W @ 80%, 1.27Hp. Which given the broader power band and lighter mass should be pretty close to a very fast nitro car.
My 80A figure comes from 20C off a 4000mAh 4c lipo pack that weights about the same as a 6 cell 3300 pack.