How much power is enough power?

[Crash]

Where are you getting your flex shafts from?

I have tried stock, OSE HD and dasabota.
I am in the process of installing a Speed Master stinger in it now, to improve what was the stock stinger.
I also bought a lower wattage higher kv motor.
still a 8s motor but should not have the power to snap drives.

[rol243]

good flex shafts; cc racing / prather / speedmaster / hughey[ if you can get ] . also don,t cut into the hard shaft too much for those grub screws. i keep this shallow and remove any excess screw so all is flush on the dog. Crash, also have you considered trying a lower kv motor and run larger props. ?

[Crash]

good flex shafts; cc racing / prather / speedmaster / hughey[ if you can get ] . also don,t cut into the hard shaft too much for those grub screws. i keep this shallow and remove any excess screw so all is flush on the dog. Crash, also have you considered trying a lower kv motor and run larger props. ?

I have a 52mm prop that is a blast to run but, they producd more torque then the 46mm I have been trying lately. And the 52mm produced 380 amps on the data log. The smaller props get you there too with less amp draw in my boat.
I am pushing 70 plus now with my boat, ill be at 80 plus on this next set up.

[photohoward1]

Post some pics of the set up let’s have a look. Running some pretty powerful set-ups on 6s. Don’t go to a ¼ until 8pr 10s. Alignment is key.


Sent from my iPhone using Tapatalk

[Prodrvr]

Could always try a shaft from MHZ.

[rol243]

common breakage of shafts can result from the drive dog contacting the strut which in tern causes severe drag / binding when the shaft contracts. motor wants to turn shaft but can,t due to binding on strut so something will give. this is like holding the prop tight so it can,t move then applying some motor power.

[Nevs]

With 10.000 watts peaks you would need a 1/4 flex.
How much power is enough power?. No idea. it depens on what you want and where you run your boat. The boat I had /have the most fun with is a very light (10 pounds) 47" Delta Force copy. It can run full speed for 8-10 min, on 12s /4000. The top speed is in the low 40. But its "enough" for that pond.
So in this case 100-125 watt/pound is fine.
I tryed a bigger prop, (62mm). Gained less then 10 mph. Had less fun and less running time.

https://www.youtube.com/watch?v=4tcpHLrk63g

[Crash]

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New set up going in
8s 2070 kv
3600 watt
X646 prop from Dr. Props
SF 300 X

[Crash]

With 10.000 watts peaks you would need a 1/4 flex.
How much power is enough power?. No idea. it depens on what you want and where you run your boat. The boat I had /have the most fun with is a very light (10 pounds) 47" Delta Force copy. It can run full speed for 8-10 min, on 12s /4000. The top speed is in the low 40. But its "enough" for that pond.
So in this case 100-125 watt/pound is fine.
I tryed a bigger prop, (62mm). Gained less then 10 mph. Had less fun and less running time.
https://www.youtube.com/watch?v=4tcpHLrk63g

I think in the my case you answered the question for me. 10,000 watt is too much for my set up. Its 3 times what is needed to move this hull around and more then the flex shaft can take in my set up.
I will update this thread when I get some data of the logger for the new motor.

[NativePaul]

I hope your going to run your cells in parallel for 4s2p and not as 8s with the new 2070kv motor.

Good luck.

[Crash]

I hope your going to run your cells in parallel for 4s2p and not as 8s with the new 2070kv motor.

Good luck.

Ive heard that before.

I ran my 1650kv on 10s and got some of my best data logs to date.

I will run this 2070kv on 8s

[Prodrvr]

Which motor is this 2070? That Kv on 8s has my attention!!!

[Crash]

Which motor is this 2070? That Kv on 8s has my attention!!!

Tp 4030 V1
2070kv
29 volt
124 amp.
1600 to 3600 watt

[Crash]

Which motor is this 2070? That Kv on 8s has my attention!!!

Just did some bench testing of that motor on 8s no flex shaft no prop just bolted into the boat the motor wires are getting hot right away they're not they're not enough for 8's even though the motor is rated for it stay tuned I'm going to try 6

[Crash]

Which motor is this 2070? That Kv on 8s has my attention!!!

Surprisingly this motor is rated for 29 volts same as my bigger motor That's rated for 29 volts but this little 2070kv only likes 5S otherwise the wire start getting hot
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