Drum roll please... final Neu motor choice(s)......

[jhautz]

Originally Posted by mk351e

thanks guys. I think I'm a little clearer on things now. However, if I tally votes, it seems a 1515 and a 1521 are pretty close w/ everyone. Soooo, here's the tiebreaker: does everyone agree that a 1521 is more efficient? I'll get longer runtime if I spend the extra $20 then with this one? 1900kv?

No. I dont agree that the 1521 is more efficient than the 1515. A bigger motor spinning at the same rpm as the shorter motor will draw more current and give shorter run times.

Yes... the 1521 can make more power than the 1515, but the power if for nothing but spinning wheels. You cant put it to the ground. (you cant even put all the power of a 1515 to the ground)

I'm assuming based on you first post you want to keep some kind of decent run times and the 1515 will generate enough power and speed to make you very happy. On the other hand if you want flat out raw power and current draw and run times be damned than theat 1521 would sure be fun. There is something to be said for overkill...

[lutach]

My 1521/1Y is drawing 75A spikes after I went back to the truggy diffs.

[jhautz]

Same setup with the only difference being the 1515 motor with the same kv and I bet you get around the track just as fast and run 20% longer.

[lutach]

Originally Posted by jhautz

Same setup with the only difference being the 1515 motor with the same kv and I bet you get around the track just as fast and run 20% longer.

I can't compare because I don't have a 1515. I can definitely tell you he'll get to the speed he wants easier with the bigger motor. With the same Kv the 1521 will have much more torque then the 1515 and I'm pretty sure that will reduce the strain on the batteries. That why I'm saying the 1521 will draw less amps then the 1515 with the same Kv.

[mk351e]

seems like common sense to me that the larger one would draw more current (more energy to move the larger heavier mass), but some said 1521. I don't really need or want flat out silly raw power; I think anything we're talking about here can smoke nitro all day, so I think I'm gonna go 1515 2D and call it a day. Unless someone disagrees and this continues, I think "I'm there". And even if I'm off in my selection, it doesn't seem like I'm too far off.

I thought about going BL months ago, and swore I wouldn't b/c I just felt it wasn't mainstream enough yet. I recently got interested in BL again, and fed up with nitro, and rationalized going BL now. Not sure what I was thinking! This is such a royal PITA! Too complicated! Hopefully though, once I have everything built and running right, I won't have to do anymore maintenance!