1515/1y on 5s or 6s ?

I have a Neu 1515/1y (2200kv) in an e-revo I want to run 5s or 6s in it , is there any drawback to going up in voltage ? I assume heat is prob the big factor, anything else?.....will 5s or 6s work ok with the 1515/1y ? I see plenty of 5s but what about 6s...am I insane to want to run 6s...

[BrianG]

Neus can easily handle 40krpms+, so I wouldn't have a problem with either voltage. Heat shouldn't be a problem if geared right IMO. Don't forget, you'll onyl hit max rpms if you stay on the throttle. With typical bashing, you hit WOT fairly rarely.

Brian,
So if I gear for 45mph (40/17) will that be too speed geared for bashing and overheat? Also would 6s be so much I could hardly control it ? I do want it to be reasonably driveable...not too inasne ....I am on 4s now ....would you reccomend 5s or 6s ? Thanks

[BrianG]

lol, you wanna run 6s on a 1515 motor spinning at over 40krpm and you want to be able to control it?? That's a lot of power there! Figure a conservative 100A on 6s is almost 3HP, and the torque at the wheels will be quite high as well.

Seriously, geared for ~45mph, it should work very well. In my high speed project thread, Mod Man ran his 15xx Nue to over 55k rpm and it ran fine. And that was geared high!

I last question when buying lipos does freshness of the pack matter alot, like if i buy a flightpower pack from tower? Hummm 6s sounds like fun... if geared for speed like above will it have plenty of power at slower speeds?

[zeropointbug]

Originally Posted by BrianG

Seriously, geared for ~45mph, it should work very well. In my high speed project thread, Mod Man ran his 15xx Nue to over 55k rpm and it ran fine. And that was geared high!

Do you have a link to that Brain? I am curious how it went, I would like to know how they do at their ma rated 60K rpm.

[zeropointbug]

Originally Posted by austinmaxx

I last question when buying lipos does freshness of the pack matter alot, like if i buy a flightpower pack from tower? Hummm 6s sounds like fun... if geared for speed like above will it have plenty of power at slower speeds?

These motors have plenty of power at lower speeds no matter how you gear it, honestly! In fact, I seem to bring out the devil in my 1512 Neu when I gear it up (to a point).

[Just go Play]

Originally Posted by austinmaxx

Brian,
So if I gear for 45mph (40/17) will that be too speed geared for bashing and overheat? Also would 6s be so much I could hardly control it ? I do want it to be reasonably driveable...not too inasne ....I am on 4s now ....would you reccomend 5s or 6s ? Thanks

You will not have any heat problems geared for 45. You will plenty of power at any speed and then some. 6s with the same gearing is going to be nuts. I can't see it being usable unless you have some wide open space to run.

hummmmm maybe I should try 5s I want it drivable within reason......having insane power is good up to a point....

[bdebde]

I would recommend 5s on that motor, 6s may be a bit much. I ran a Big Maxximum (same kv) on 6s for a while in a 12 lb truck and it was insane. I have since switched to a Neu 1515 2.5D on 6s for bit more "tame" driving.

[BP-Revo]

If you want to control it you may want to give it a power system that less powerful than the average chain saw...not 1.5X more powerful lol...

[steve050773]

Yep, I'd also recommend rethinking 6s if control is part of the equation... I'm putting 2100kv on 4s lipo or 5s A123 geared right at 35 in my latest update of an E-LST... probably a fair bit heavier than an erevo but should be plenty powerful.

I will go with a 5s esp since its a 300 dollar battery and I want some control....backflipping at 10% throttle fun wears off quickly I want it usable ...

[BrianG]

Don't forget that you can always reduce the start power in most ESCs if it's too much. And that will increase runtime. Also, higher voltage will increase runtime for a certain speed and motor because you aren't in the throttle as much. But, I also think 5s is more reasonable for your needs.