Which TP motor should i buy !

[Andris Golts]

Hi all i am in the process of starting to build a ML boat works FE 34 inch Wild thing mono hull .I would like to set this boat up using 6S power i have a Swordfish pro 220 amp esc with 6 mm bullet plugs . What size TP motor and KV range would be most suited for this application . Regards Andris Golts .

[Peter A]

TP 4050 1570 kv, it can get you at 100kph range with a 45-47 mm prop. I have run one in my DF Pirate 35" at those speeds.

[properchopper]

Andris - to come up with a sensible package (as in building a sprint racer that can go mill + 6 +1 ) on a 1/6 mile course I'd adhere to the good old chart for KV vs Voltage.* To keep your 6S rpm in the "golden comfort range" a TP Power 4050 5Y [1330 kV ] will yield @29500 at the prop unloaded. Nice handling in the 50 mph range. The TP Power 4060 4Y [1350 KV ] will yield @ 29,900 at the prop unloaded and will pull lots of prop to get you up around the 60's.

*

[Andris Golts]

Thanks Peter A and properchopper for the excellent information. Regards Andris Golts.

[Alfa Spirit]

4060 motor is big and heavy (34" hull) , prefer a 4040 (40mm x 74mm) TPPower motor 1500kV to 1700kV with a 6S setup.

[HTVboats]

A 4050 - 82mm length would be on the ragged edge but manageable. 1400-1600kv for sure. We have guys using 4040 74mm length motors for our Q limited racing running high 50's easily. A great match for a 34" hull with longer run times. 120-140 amps on 6S.
Mic

[RaceMechaniX]

Take Tony's advice. If you plan on running a heavier 2P setup the 4060 is the way to go. If you run a lighter weight 1P setup go with the 4050. I would stick to the lower end of the KV range. 1200-1400 will allow 44-50mm props.

[Troy1957]

Max amps on a 4060 1350 kv is 163 according to TP Power website.. Props that will stay under that and get 60+ mph????

[Peter A]

I run that TP motor in my Q hydro. We have a max limit of 6000mah for the class here. It runs around 65 mph on an ABC 1915/45/17 prop. I can do a heat race on 5500mah batts like this.
I tried also the TP4050 1570 motor in the same boat with an ABC 1814/45/17 and managed 70mph on the oval with the gps.

[Troy1957]

Peter what kind of amps are you pulling on both of those setups?

[Peter A]

Peter what kind of amps are you pulling on both of those setups?

I cannot tell you exactly, but it has a V2 T-180 esc and I am able to do a 5 lap + mill heat race with it on 5500 mah. So it has it has to be around 110A average draw. I have no datalog, nor do I care for one. What natters is how fast I get it to go and how many mah go back into the batt. I don't like going below 20% and it is right there with the setup.

[Troy1957]

Peter which motor with the v2T180????

[Peter A]

Peter which motor with the v2T180????

Both. I was running a ZTW 200 but changed to the T-180 to lose a bit of weight.

[Troy1957]

Awesome! Would this setup work on an outrigger like ml rsx380 36 inch???

[Troy1957]

So I'm going to run the tp4060 1600kv with the T-180 and try the 45 mm props. Thank you for the info.

[T.S.Davis]

I ran my 36" WT on 6s. Super fast. Brutal in traffic. It's just too small for the class it lands in. A 40" WT might be sweet.

[Troy1957]

TS Davis, I'm not class racing. Most guys I race with are running 36 inch or less. We are pretty much an outlaw class. Build it fast and and hope you out run the next guy. We race two boats 6 laps then the winner races the winner of the next heat. Similar to drag racing ladder. Pretty dang fun.

[T.S.Davis]

Hey, any excuse to get boat guys on the water and having fun I support. The laughs are well over half the hobby.