New Here, Need some advice on my ZONDA

[Speedfreek]

Got my first electric boat it's a glass TFL Zonda it came with twin 1650kv motors for now and 180A SEAKING ESC 6S per side with custom cap packs.
I am using my futaba 3pmx with a R603FS reciver.
Upgraded rudder duel water inlets.
I am a little over kill with things and have purchased a pair of TP 4050 CM 3200kv Motors for it.
Tell me what you think so far ?

[Old School]

Are you sure the motors are 3200 kv as on 6s that is over 70,000 rpm? Probably OK if running just SAW runs but to me that is way too much kv per motor for that voltage. Any lower voltage would cause the amps to skyrocket. I believe the TP motors are good for 60k max RPM. You will most likely need higher amp ESC's as well to cope with the prop speed plus smaller props. On 6s I would be looking at 1500kv maximum.

[Speedfreek]

Are you sure the motors are 3200 kv as on 6s that is over 70,000 rpm? Probably OK if running just SAW runs but to me that is way too much kv per motor for that voltage. Any lower voltage would cause the amps to skyrocket. I believe the TP motors are good for 60k max RPM. You will most likely need higher amp ESC's as well to cope with the prop speed plus smaller props. On 6s I would be looking at 1500kv maximum.

Positive the 4050 CM 3200KV is 6S max, rated and 80,000 rpm
So the 3200kv is no good ?

[Old School]

There was a recent thread in which maximum RPM was talked about. OSE store recommends 25000 - 30000 RPM. Current thinking is seeming towards 40,000 RPM maximum. On 6s this would be around 1800kv. Volts multiplied by kv gives an "unloaded" RPM. To get a realtime RPM then deduct about 15% from the maximum revolutions.

Your 3200kv on 6s would give a loaded RPM around 60,000 rpm. I believe that you would need specialised (expensive) props at this RPM.

Edit: I saw a 4070CM on the OSE store website but the motors had a restriction - "-3200Kv version, 23.5v maximum for 10 seconds or less". With you 6s power supply that is a very short SAW run.

Also, quote: "These are higher output than the tp-4070, they are rated to run up to 75,000rpm for 10 seconds or less. These are designed for rc boats, trucks or cars that are running high speed straight line competition. NOT for long run times."

[Speedfreek]

Sorry i locked myself out
Ok so all in all these TP CM Motors are to full on but are usable might use the futaba so i only get 60 70% throttle new to electric boats.
I have the 2070 CM in my rc car doing 144mph so i just went with the CM version off of the bat.
What prop size do you think i should start with ?
Stinger height sorry dont now the terminology?

[Old School]

Personally, I would not be using the transmitter at partial throttle. ESC are built to run near full output (100%) from what I believe. Constant partial throttle will cause premature failure of the ESC. Partial throttle causes the mosfet to overheat and fail.

Prop size will depend on the input voltage and the capacity of your ESC's, plus the prop would need extensive reworking for the higher RPM. I do not believe the CM series would be a suitable motor for your Zonda unless you restrict yourself to SAW runs.

[Speedfreek]

In it right now is SSS 3682/1650 kv with seaking 180A ESC with a CNC 44 prop.
I do like saw runs tho
What would be the best TP Motor to run in this boat, a bit of mucking around but i love flat out runs.
The more specific the better for me ?

[Old School]

In it right now is SSS 3682/1650 kv with seaking 180A ESC with a CNC 44 prop.
I do like saw runs tho

My son has a carbon fibre Zonda with two off Leopard 4082 and 180 amp ESC to run 6s with 44 mm "brass" props. Currently dismantled as he wants to reinforce the hull with a carbon fibre inlay and reinforce the production seam as well as install reinforcing struts under the foredeck section.

If you are into SAW runs then the stock Zonda hull will need a lot of reinforcing (even the carbon fibre ones).

[Speedfreek]

If you can get picks would be good*!**reinforcing struts under the foredeck section.mine has two extra layers of kevlar carbon then normal and i have put a extra layer of woven cloth where the seam is and battery trays just in case

[Old School]

My son's carbon fibre boat if you held it up to the light you could see beams of light through the seam. Must have been a Friday afternoon or Monday morning build.

[Speedfreek]

My son's carbon fibre boat if you held it up to the light you could see beams of light through the seam. Must have been a Friday afternoon or Monday morning build.

[hughb]

Zonda is the same hull as a Fantasm. Do some searching on the forum for either Zonda or Fantasm you will find plenty of info.

https://forums.offshoreelectrics.com...addcat+fantasm

This link above has a very detailed build thread of one of these boats. Very informative, I’ll be using this as a guide when building my Zonda.

[Speedfreek]

Zonda is the same hull as a Fantasm. Do some searching on the forum for either Zonda or Fantasm you will find plenty of info.

https://forums.offshoreelectrics.com...addcat+fantasm

This link above has a very detailed build thread of one of these boats. Very informative, I’ll be using this as a guide when building my Zonda.

Thanks for the link learning how to navigate
Wow i think my brain has over loaded

[Speedfreek]

Ok so what TP Motor do you guys recommend for the ZONDA for saw runs bear in mind i have seaking 180A ESC .
Please be as specific as you like, the more the better

[CraigP]

I think you are asking for ESC trouble trying to run saw rotation speeds with ESC’s rated for 6s while running on 6s. You need to de-rate that voltage spec, because you will have higher ripple voltage. I think you need 8s rated ESC’s as a minimum. Designing the electrical system for saw at +40,000rpm is no trivial matter. The motor kv sounds too high and ESC’s not rated high enough. Just my 2 cents...