glassdoctor,

I'm in (or just outside of) New Orleans. It's hot AND humid. 90 can feel like 110.

Man, I do have to admit that I've been struggling over the whole 1512 thing. I've read a bunch of your posts and you seem to be having good luck with yours. You're getting cool temps and good runtimes. Where I'm getting hung up is on the whole rpm thing. The only logical choice in the 1512 line is the 2.5d, although I do find the idea of the 2d to be appealing. The only problem is that I don't think that my mounting situation is going to allow me to run a pinion much smaller than a 12, so the 2d is out. That leaves the 2.5d. I understand you can get some speed out of it, but you've gotta sacrifice some zip to get that speed with a 2000kv motor. I don't know what your track is like, but mine is pretty tight. The longest straight is 160' (which is why I need to legs), but the rest of it is pretty technical.

I used to motor selector and plugged in all of my parameters and it seems that it puts the 1512 out of the game completely when I increase the weight of the buggy from 8 to 8.5lbs. It appears that, according to the motor selector, about 8 lbs. is the limit for the 1512 motor before it starts getting stresses. I just figure that the 1515 will be able to do everything the 1512 can by gearing. What concerns me is that it is not unusual for me to run my buggy on my track and wind up a 1lb of mud stuck to it. Over the course of a race, or a couple of races, that factor alone could cause the 1512 to overheat. I'm thinking that the 1515 might just shrug it off.

I'm hoping that my pinions get here tomorrow. That way I can see what the mesh is going to be like with the various pinions. I don't even know that I'll have room for the Neu. It might just wind up being Feigao all the way.

BTW, what you do think of Hacker motors? I was just on their website and they are blowing out overstocks of the C50-9XL for $240 and the C50-11L for $195.