more rpm motor vs more cells ?????

[netik racing]

ok so i own a mini bolt i currently have a 2600 kv 2 pole motor running on 4s with a 32mm prop and have reached my goal of 80 kph (50mph) now like every body else i want to push this boat till it explodes or fly's into a million bits...

What i would like to do is get it to 100kph if i can....

I don't know is should i go high kv motor 5280kv leopard motor on 3s so that's 58608 rpm i know that's insane but that's just me...and run a small prop???

OR

a mid range kv 2950 leopard and run it on 4s thats 43660 rpm and stick to the 32mm prop????

I want to keep weight down were i can to max out the speed....

Please help

[sundog]

You need some weight to keep it on the water! Go with the 2950kv Leo on 4S and start with the 32mm prop and work up. You might consider a bearing strut for even higher speeds. The 5280kv motor is more suitable for 2S, and would require a bigger esc and high C rating lipos to keep them from puffing (40C or better continuous, not burst).

[martin]

The 5280kv motor is going to draw a lot more amps than the 2950kv motor, What size esc do you intend using with either.

[Alexgar]

A higher kv motor draws more amps ie better batteries and bigger esc what about 2 small 5sbatteries in parallel?

[sundog]

A higher kv motor draws more amps ie better batteries and bigger esc what about 2 small 5sbatteries in parallel?

That is an interesting thought. I believe 4S is as large (fat) as you can fit in the hull. That being said, what about 2) smaller (1500mah?) 3S lipos in series (6S1P), running a motor in the 1600-2000kv range. You could run a Seaking 35A esc, and start with a 34mm prop. Just thinking out loud here.

[Alexgar]

sundog i dont think that esc is capable of 6s

[sundog]

Whoops! You're right, Alex. The 35A Seaking can only handle 3S.

[netik racing]

ok so im thinking the low kv and two 1300mah 45-90c 3s to make 6 s and we start with about 32mm-36mm then 40mm if im game....

Only problem can't find anywere with the lower 1800kv-2200kv motors...help...

Maythanks for you imput guys as soon as i find the motors i will buy one and see how we go...

i have a 70 amp esc in it at the moment but have a 120amp sitting there if i need it....

cheers netik'

[Make-a-Wake]

If this Leopard 4 pole will fit you may consider the 2730kv on 4s with an x632.................that'll get you scootin'!!

http://www.offshoreelectrics.com/proddetail.php?prod=leo-2860&cat=148

[sailr]

Another motor to consider is the Tenshock Viper 5 pole 3200KV running on 3S. It is not on our website but is available from us.

[FRED]

4S and too much-------------3s and 632 and correct amount of weight is no slouch.

[ozzie-crawl]

Some of them tenshock motors are little rockets