TP power 4070CM 2200KV motor

[dbonomi]

Hi boaters,

Do you recommend an 8s or 10s set-up for this motor? Should the batteries be connected in series or in parallel?

Thanks,
Don

[Lone-Wolf]

I've got two of these exact motors and on 6S they are ballistic, that right there is basically a SAW setup. Possibly when you say 8S or 10S you are referring to 2x4S in parallel (8 total cells) or 2x5S in parallel (10 total cells), those would be more reasonable for that motor. You really don't need to parallel up your batt's unless is a larger hull or maybe a sport hull that you want lots of runtime on. Would really help to know what hull you are running and what you are trying to accomplish. Details please!

[T.S.Davis]

Madness

[kfxguy]

Yea I wouldn't run 8s (29.6v) or 10s (37v). That would destroy the motor and esc in short order. 10s would be 81k+ rpm. Way too much. If you are running 4s parallel (two 4s packs but not run in a way that it doubles voltage) then that would be fine. Same for 5s. Don't ever shoot to setup your based on the manufacturers max rated rpm. That's just what it is, max rpm but it cannot sustain that kind of rpm for long periods of time, possibly short bursts. Take note that Turning 50k rpm in a boat is far different than turning 50k rpm in a plane, truck or car. A boat is much more stress on things.

[dbonomi]

Hi Lone-Wolf,

So you think that 2 3s batteries in series(2 times 3=6s) is plenty fast enough for this motor combo. I'm using a S.F. 300esc on a 34" mono fiberglass hull. What prop would you suggest?

Thanks,
Don

[dbonomi]

Can I run 2 3s packs in series instead of 4s or 5s(8s or 10s) in parallel? Running a 34" mono fiberglass hull. What prop size do you recommend? Using a SF 300amp esc with this set up.

[Lone-Wolf]

Hi Lone-Wolf,

So you think that 2 3s batteries in series(2 times 3=6s) is plenty fast enough for this motor combo. I'm using a S.F. 300esc on a 34" mono fiberglass hull. What prop would you suggest?

Thanks,
Don

Yes 2x3S packs in series will be 6S and the max I would put to that motor, you really should start with 4S or 5S to start to get an idea of how it's running then move up from there as long as the heat is not an issue. With any new setup always good to start with lower amount of cells and smaller props, don't rush in with guns blazing, take your time and move up the ladder. Good to know you have an SF300 esc for this purpose too, should be good with that motor. As for prop, not sure what you have on hand but for it's maiden run go with something like an X442 and move on from there checking heat, you may settle on something like an X447. Also, very important, I made this mistake when I first ran these motors, they are "D" wind which means their optimum timing setting in the esc should be no more than 5 degree's, set the esc to 3 degree's of timing to start or maybe even zero degree's. My esc's were setup for a different "Y" wind motor with 15 degree's of timing...a really bad thing to run 15 degree's of timing through a D wind motor!...as I am sure SRISLASH will agree!

OK hope this helps and keep us in the loop.

[dbonomi]

Hi Lone-Wolf,
I have all those props you mentioned. When this is set-up, I'll try the Octura X442 first. I could use 2 4s batteries and wire them in parallel which would give me half the power of 8s. That would start me at 4s. The disadvantage is that I will be carrying more weight with the larger 4 or 5s batteries. I have used a SF 300esc in one of my larger boats using a 56 size tp power motor, a 265 Prather prop and 2 6s or 7s dinogy 6000mah 65c batteries. I have been setting the timing and cell count on "automatic" and have had successful runs with this boat. I think I'm better off with this 2200kv motor to run it on "auto" and let the esc vary the timing degrees at different rpm levels. This is a 4D wind motor with 264max amps. I should be able to keep my heat build up at a reasonable level with this size esc. What do you think?

Best,
Don

Best

[MarkF]

Don

A 34" mono is a 4s boat and I run 2 4s 5000 in parallel for 10,000 mah, a Neu 2300 kv motor and a 447 prop for heat racing. You can run lower mah packs but it's not a 5 or 6s boat. My 4s mono goes 70 mph and is starting to get unstable at that point. If you want to run a saw type boat thats different. For your set up go for 4s and a 447 prop and your there.

Mark

Mark

[martin]

You are going to be pushing that motor even on 6s in a mono @ over 48000rpm unloaded, unless its for short SAW runs.

[Fluid]

The OP needs to keep his maximum voltage at 6S, which will give around 41,000 rpm loaded on the water with that motor and a reasonable prop. An x442 is too small to run efficiently on a 34" mono. But like others have said, even this is a limited-use setup. What type of running does the OP intend? What are his speed and run time goals? Running 4S is a common voltage for racers running a motor with this KV.

BTW, a 34" boat is certainly not too small for 8S. I run a 29" Titan 29 on 8S1P and it runs great - doesn't flip, doesn't overheat, and has plenty of run time. But I run an 880 Kv motor, which is appropriate for that voltage and that boat. It is important to match the motor, voltage and prop to the hull if you want reliable, trouble-free running. Otherwise you will end up spending your time and money retrieving flipped boats and replacing burned up equipment.


.

[dbonomi]

Hi guys,
Thanks for your comments. My boat set up will be comparable to Mark's. I mainly do straight away runs on our Florida lakes and if I hit 70mph, I will be very happy. In regards to the timing issue with 4s in parallel using a #447 prop, do you think I should program my S.F. 300esc on "auto" cell count and "auto" timing or be more specific on one or both areas?

thanks,
Don

[iop65]

A 34" mono is a 6s boat (when not needing to follow race rules ),but i would use 2200kv

[kfxguy]

Hi guys,
Thanks for your comments. My boat set up will be comparable to Mark's. I mainly do straight away runs on our Florida lakes and if I hit 70mph, I will be very happy. In regards to the timing issue with 4s in parallel using a #447 prop, do you think I should program my S.F. 300esc on "auto" cell count and "auto" timing or be more specific on one or both areas?

thanks,
Don

Yes run it on auto. I've run tests and it's faster that way and the motor and esc run cooler

[ray schrauwen]

Yes run it on auto. I've run tests and it's faster that way and the motor and esc run cooler

This works with all Swordfish ESCs ??