PB 1500kv brushless on 2cell?

[Stephavee]

So i guess i need to know if its ok to run the stock BJ26 Motor on 2-3cell lipo safely? im putting together a Dumas 1949 CC racing runabout and want to use this old brushless motor in it! thanks for you imput>:beerchug:

[Make-a-Wake]

Less voltage is rarely an issue..................unless you throw a huge prop on it. If you are going with a moderate prop, or one designed for the motor on 4s, you will be fine.

[Nosbig]

You can't really run a motor on too low of a voltage, what prop and ESC are you planning?

[siberianhusky]

Exact same thing I'm planning for a Lobster boat, same motor. Keep the prop size down and all will be good. No idea what my choice will be. No experience with submerged scale props.

[Stephavee]

IDK what prop reall i was thinking 35mm 3blade ??? Beryllium Copper - 3 blade - 1/8" shaft -
1.48" dia. x 1.332" pitch - L/H ???

[Stephavee]

What would be a good esc for 2-3cell running? "water cooled" I need great proportional throttle control for this scale build.

[BHChieftain]

The proboat 60A esc would be more than enough... and the unit is virtually waterproof to boot...

Chief

[Stephavee]

Hey!!! what do you know i have one of those in my Impulse 31! I'll just replace it with a t180 and be good to go!

[Make-a-Wake]

I'm not sure you can run the PB60a ESC on less than 12 cell nimh or 4s..........................

[Nosbig]

Yeah it's really a 4S ESC, I think you'll trip the LVC (if there is one)

[Fluid]

No on the ESC, at least mine won't run on less than 4S. The LVC cuts in...

Try a SeaKing 60. http://www.offshoreelectrics.com/proddetail.php?prod=ker-seaking-60



.

[Darin Jordan]

The new ESC that Pro Boat is selling for their smaller 2S-3S applications is this one:

http://www.horizonhobby.com/products/45a-brushless-marine-esc-single-battery-DYNM3810

http://s7d5.scene7.com/is/image/horizonhobby/DYNM3810_a1?$pdpLand$

It is officially rated for 2S/3S applications, has reverse, and has 12-awg wiring with 4mm motor lead contacts.

Also, of note... the smaller 2s/3S boats that have recently been announced (IM26-Brushless, etc.) will be powered by this ESC and the new Dynamite 1500KV 6-Pole power system (same specs as the current Miss Geico power system)...

[Darin Jordan]

What would be a good esc for 2-3cell running? "water cooled" I need great proportional throttle control for this scale build.

If you need a really proportional throttle, I'd suggest something like what Jay suggested... the PB ESCs currently have a pretty "stout" startup speed...

[sanyijr]

"Stout" Darin, that made me laugh! WTF is that about? I have a really steady trigger finger, probably from years of shooting, but holy crap. Yeah, is that just from the peak voltage off the cells or what?

After about 5-10 seconds of juice drain, It is good, but if i have a friend drive any of my PB prowered setups, I have to drain power off the top or it is jittery to say the least. Or yes, "STOUT". (Or lets just say "sensitive")

But don't get me wrong, those ESCs are absolutely great! And I will not be changing them out, till I kill them)

Sean

[Stephavee]

I realy dont want to change my IM31. That thing is sweet just with a nice prop and cells! So what about the Seaking 60a esc? This Is just going in A Dumas 1949 Chris Craft racing runabout kit...

[Nosbig]

The 60A ESC will be good if it's the same as the rest of the series.