29" sprintkat - motor selection

[LarrysDrifter]

lol

Had to think about your response, but I meant a 540 size electric motor, not a BBC in a Pinto...although a Chevy is the correct way to power a Ford!

[oscarel]

I'm sure a v10 or v12 would be even more awesome, but is it necessary?

Sprintkat, I'm just north of you in Mckinney. If you want to see what I have let me know.

[Brushless55]

No, full potential doesn't mean hot motors and esc. Does a Pinto need a stroked 350? What advantage will you gain with running a bigger motor than needed, especially since he stated sport running?

So back to my original statement, if you're planning on using the motor in a bigger hull later then go for it.

NEU always recomends more than needed when powering a FE
many reasons for using that motor vs something smaller... it's a no brainer!!
one is cooler running system
two is possible less amps being pulled... more runtime and longer lasting electronics.
so to me that is using a motor to its full potential
I would hate to have a 4cl or 6cl in my BMW when the V8 runs awesome all day long and I don't have to push it hard to get upto highway speeds........ etc.

[oscarel]

i say, use a 540.

lol

[LarrysDrifter]

I say, use a 540.

[oscarel]

No, full potential doesn't mean hot motors and esc. Does a Pinto need a stroked 350? What advantage will you gain with running a bigger motor than needed, especially since he stated sport running?

So back to my original statement, if you're planning on using the motor in a bigger hull later then go for it.

[LarrysDrifter]

Use the 36-75-1 Arc motor on 6s.

http://lightflightrc.com/

In a hull that small, you will have your hands full with this motor on 6s. You wont need to run 2p. Use two 3s 5000mah 40-50c packs in series. No need for a 40mm motor in that boat. Use a 180 amp speedo and start with an X442. There is your stupid fast, reliable set up in your small hull. Itll be in the 60's with no problem. By the way, you dont need to start multiple threads asking the same questions. Ask em all here.

[Brushless55]

would this work - 29" sprintcat leopard 4082-4d/1450 kv/rpm 120/240HV esc 2x 3s2p 4000mah 20-30c in paralell w/octura 440/3 or 447/3

with the 440/3 it should run real nice..

I have one that I run a Neu 1515 2200kv in, it runs low 50's with x445 or x642 on 4s2p Turnigy 5000mah. The 4082 will work but you won't be able to use it's full potential in a 29" boat. I tried a few bigger motors and with those you'll need bigger props and the 29" boat just isn't going to work well with them.

does full potential mean hot motors or esc??
were talking 32K rpms, it will run sweet!
you don't need big props on a 29" hull with those rpms to get good speeds and take advantage of a 4082 motor

[oscarel]

I have one that I run a Neu 1515 2200kv in, it runs low 50's with x445 or x642 on 4s2p Turnigy 5000mah. The 4082 will work but you won't be able to use it's full potential in a 29" boat. I tried a few bigger motors and with those you'll need bigger props and the 29" boat just isn't going to work well with them.

[sprintkat]

would this work - 29" sprintcat leopard 4082-4d/1450 kv/rpm 120/240HV esc 2x 3s2p 4000mah 20-30c in paralell w/octura 440/3 or 447/3

[Brushless55]

if you have 6s and want to run that, you could run a Leopard 3674-4074 1400kv on 6s
Lots of power that can be ran with different props for sport or some faster runs if wanted..
and a T-180 esc should work just fine...

[sprintkat]

You need to determine what type of setup you want. Do you want a saw type for a few short passes of just per speed or do you want a a sport style setup for decent speed and average runtime.

ok - sport

[Diesel6401]

looks like a 29-30" hull. how fast did she run on 4s, then how fast on 5s. i use a pond that is always calm.
im really looking for an insane fast boat. got the hull, just need the right equipment

You need to determine what type of setup you want. Do you want a saw type for a few short passes of just per speed or do you want a a sport style setup for decent speed and average runtime.

[TheShaughnessy]

kv

Id go with something around 1500kv and start with a m445. That should be pretty quick then u can add prop if everything holds up.

[sprintkat]

looks like a 29-30" hull. how fast did she run on 4s, then how fast on 5s. i use a pond that is always calm.
im really looking for an insane fast boat. got the hull, just need the right equipment