Quote:
Originally Posted by BrianG
I'm thinking he means 14 cells is the limit because the battery pack starts becoming quite heavy.
Higher voltage creates higher current on a given motor. The idea is to select a motor with a higher wind (therefore higher resistance) making for less current. As you can see though, higher voltage means heavier packs even though they may be just 1p. When you start getting really high voltage (over 6s) regular lipos start becoming more and more appealing because of their reduced weight. I was hesitant to get lipos at first (opted for emolis at the time), but now I have them, I certainly wouldn't go back to NiMH. Safety isn't the forefront of my thoughts as long as they are charged/discharged correctly, and reasonable attempts at protecting/securing them are implemented (no tape or zip-ties for me!).
No, BL isn't really complicated, but the initial cash outlay can be steep. That is why we are all here; to help people make the best decision based on their budget and their needs/desires.
Maxx tires are closer to 5.6", which can make a HUGE impact on overall speed. And don't forget to account for ballooning! That too can make a substantial difference. Using 5.65" for the tires, I get 25.34mph in 1st, 31.74mph in 2nd, and 39.12mph in 3rd. And since you are using the 3 speed tranny, you can gear the spur/pinion more aggressively since first gear is so low. I don't know what spur/pinion options are available for the savage, but I would gear up a bit. You should easily be able to attain 45-50mph with that Neu motor.
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LoL, I see your point, I went back and measured my tires and you are in fact correct, not that I ever had any doubt. When I made the change, the numbers quickly fell into place.
I've been thinking of ebaying my A123s and going back to Li-Pos, but I think I'll give them a fair shot in this new truck before I take that route. Not to mention my wife would have me skinned and hung out back if I dumped them and spent more money having just picked them up, lol... I was initially using a simple "L" frame for my packs, hung from each side of my Savage using a plate similar to Serums, looks like I'll have to rebend myself some "U" frames and start protecting my investment!!