prop question

[camarohrod]

is i was running too small of a prop would it make my esc run hot? my motor and batts r fine but the esc is getting hot. im new to the boat scene and dont really know much about this yet.

[ejimbo4]

Don't know much myself but more info is definitely needed .....motor size(kv),type of esc, type of batteries,prop size,type of hull and hull length?

[electric]

Just the opposite. More prop equals more amps equal more heat. Other things that heat up an esc are running a lot at partial throttle or short runs like in a small pond.

[electric]

And excessively long run times

[camarohrod]

its a skywing sw150a esc, 4s 20c 4000mah lipos, 40" genesis, no clue what the prop size is or what the motor is, here is a pic of each if it helps any. theres plenty of water coming out of the side of the boat so i know its getting plenty of flow.

[h2o 1]

The motor is a stock Genesis 36/74 2075kv.

[lenny]

Have any pictures of the insides of the cat set up and wires ?
And take the prop off and look for numbers and check that the flex shaft is free.

[camarohrod]

ok prop is a 435, the shaft may have had a bit of a bind in it so i loosened the motor and gave it more of a strait on shot and greased the shaft.

[lenny]

The shaft should turn with two fingers smoothly in open coupler on motor.
That is a small prop for that boat,
Need to see wire connector, No pictures yet ?
If that is a stock motor, I think they pull high amps and are not very good.

[h2o 1]

I would also go to a higher c rated batts.

[camarohrod]

well still the same problem, it starts falling off really quick on power and the esc is still hot, here is a pic of the whole setup but i have the boat in pieces right now. i run the 4s batts in parrelell also.

[camarohrod]

the shaft seems to turn really easily so i dont think thats my problem

[lenny]

I do not like the deans and to much different wire sizing going on to.
Go with 5.5 bullets all the way.
The esc is getting hot when running the boat in the water for how long and how hot.

[lenny]

You also need to have a 3/16 gap for your flex shaft from the back of the strut to the prop dog.
And take the wight washer off, You do not need it.

[camarohrod]

i have a good gap between the prop dog and strut, your goin to think im crazy but it gets up to 180+ after about 5 minutes of running, and ive done that read three times. what size wire do you sugest i use all the way? the batteries have 12awg coming out of them.