I am going to order a Neu motor soon...1515 2.5 1700kv for my maxx...opinions
 

Opinions on a 1515 1700kv on 4s for my FLM maxx w/ 1/8 diffs all around. I only have 4s batteries and will probably not order 5s just to keep things simple for multiple applications w/ the 4s

I think that motor will definitely be on the slow side if you only run 4s. I would consider the 1515/2d (2050KV)... :yes:

I was thinking the same thing. I should buy a couple of 5s, then I could use the smaller motor and get better run times.

What ESC are you planning to run? If you are going to the MMM then you could consider up to 6S for a very efficient system with cool long runtimes.

1515/2D (2050kv) - 4S @ ~5000mAh (74W/hr) (30,340rpm)
1515/2.5D (1650kv) - 5S @ ~3900mAh (72.15W/hr) (30,525rpm)
1515/1.5Y (1500kv) - 6S @ ~3300mAh (73.26W/hr) (33,300rpm)

As you can see all 3 combinations have about the same rpms, the same Watt-hour capacity and about the same battery weight. Yet the 6S setup will be the most efficient and coolest running.

I like to target a total of 35,000 rpms with set ups my suggestions are

4s-1515/1y
5s-1515/2d
6s-1515/2.5d

I have the mmm...just waiting for $ for the motor. in thinking it over, I will probably go w/ the 5s setup

Go with the 2D on 5s. The 2.5D on 6s would be even better though, IMO.

The 1515/2.5d on 4s is similar to the titans with stock gearing, however you can go taller with the gearing. I run a strobe/51 tooth ofna spur. I run 20/51 (mod-1) gearing with 1/8 gears, in my revo. On 4s its slow, but not so slow its boring, It could use a bigger gear. On 5s its wicked, its suttle like a heart attack, 6s (haven't tryed) Kind of scares me, I'm pulling tires off with 5s