Quote:
Originally Posted by Patrick
I think the 1515 1y would be a bit much on 7 and 8s, unless that's what your going for. I have the 1515 2.5d on 5s lipo in my e-maxx and it has a fair bit of power. It doesn't rev that high, but it has a lot of torque and I can vary the gearing a fair bit with out needing to worry about temps. This is it if you haven't seen it http://www.youtube.com/watch?v=ZMZeTJFA2f4 I don't know how much it weights, but it isn't exactly light.
Anyway I guess 6s A123 would be similar or slightly higher power (I don't have any experience with the A123's), so 7 and 8s would be crazy power. The 1y should be similar power on 4s lipo as the 2.5d on 5s lipo I think. So using the 1y on 8s A123 would VERY fast and probably pretty hard on the batteries, temps might be an issue as well.
If it was me I'd probably get the 2.5d for 6s and occasional 7 and 8s, but if your using 7 or 8s for most of your normal bashing I'd look at the 1.5y as well (1500kv), since you have heavy car. The 3d (1360kv) would be a lot of power as well on the higher voltages, but it depends on what you expect from it from your car I guess. |
LOVE the Maxx video, man that thing goes like a rocket!! On the 1y, that was my err, I misstyped, I had meant the 1.5y @ 1500 Kv on 7\8s for about 38k rpm, pushing it slightly above the generally accepted 35k pom mark, but with the Neus (my ultimate goal motor) I figured probably wouldn't cause any issues.
Any chance you might be able to get the weight of your Maxx? I'd love to be able to compare it to my Savy and see where I might land power to performance wise?? I think my initial estimate of 15 pounds was probably grossly high, I'm leaning more towards 13 now as the assembled roller with all but batts and final mounting is just at 10 pounds
My thoughts:
13 pound Savy
3 spd
Neu 1515 1.5y
7s or 8s (A123 3.3\3.65v per cell - call it 3.5v nominal)
MGM 16024
gearing 16\47 (ish) pending final testing
My ultimate goal is to run at 40 mph aprox, with reliable power, "low" temps and solid performance that I don't have to let sit and cool for 30 minutes between runs...
Thanks,
purp