Best size ESC for TP 4060 motors?

[hughb]

I've stripped out my Miss Geico 36 to strengthen the hull following the development of stress cracks under the tunnel. I'll be doing the usual carbon fibre inlay, with particular emphasis on the centre tunnel where the batteries sit.

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Considering everything is out of the boat, I figured it would be a good chance to upgrade. I've bought two TP 4060 1750kV motors, and will be running the boat on 6S. What would be the ideal ESCs for this? This boat will be used for sport running and some fast passes. I currently have DrProps 645/3 cleaver style props for this boat.

The specs of the TP's are:

Cont Power 3050W
Max 6200W
4-Pole
Max amp 213
Max volt 29
Max rpm 50k

I'm thinking to get the Swordfish 220A Pro+ ESC which is 2-6S, with 300A burst capacity. Or alternatively the Swordfish 200A Pro+ which is 4-8S and 240A burst capacity. The first has an inbuilt BEC, the second does not, however I'm thinking to run a separate UBEC anyway to take load off the ESC. These ESCs have data logging which will be nice, and the price of each is very similar. I understand higher voltage means less amp draw, but why would the burst amp draw of the 200A be quite lower than the 220A? Also planning to put on some extra Hifei caps.

Do you guys have any other recommendations for suitable ESCs?

[fweasel]

The Swordfish ESC's would work and data logging can be a useful tool. I like the ZTW 200A ESC. Pretty good burst rating at 300A, but no logging. If you're going to push it hard, definaitely use a good cap bank attached as close to the ESC as possible.

I've reinforced several of those hulls and have had good luck with a single layer over just the center tunnel and tunnel sides, then a second layer over the entire bottom of the hull and up the sides. I also like do do a strip down the inside seam as far forward as you can reach and all the way around the back. I do that before the main inlay goes in.

[hughb]

Thanks fweasel for the quick reply. I was thinking of the ZTW, though it is quite a bit more $$$, and harder to get. I'm leaning toward the Swordfish 220A at this stage, just reading through old posts in the ESC forum about them.

I had a similar plan for the inlay. I've purchased some 12k carbon fibre which I was thinking for the centre tunnel, but it's coming from overseas and will take a while to arrive. Alternatively I was even thinking of using 0.5mm carbon fibre plate on the tunnel, with the inlay over that.

[hughb]

You can imagine my pleasant surprise when I noticed a hairline crack along the seam on the port side near the hatch This must have occured after an upside landing I had. The crack went through the gelcoat and fibreglass of the main bit of the hull, but not through the factory applied seam reinforcement strip of fibreglass.

I've drilled through each end of the crack to stop it spreading, then Dremelled out a channel which has then been filled with mixture of resin and microballoons. While the hull is strong again, the beautiful Geico graphics are no more. Very unhappy about this, needed to rant!

[koen]

if you want new Geico graphics ,you can order them from MHZ
I am very curious how this boat will perform with this power(1 4060 motor has more power then 2 stock motors)i hope to see a video on youtube

[hughb]

I looked the other day at the MHZ site, they had a few decal sets but not Miss Geico or Bud Light, or several others I had been interested in. The look of the boat is similar to an MTI offshore cat so I've been searching images of real MTI race boats to recreate.

Yes will be interesting to see the boat with this kind of power, though realisticly will be some time before it's finished. I tend to chop and change with builds. No doubt it will need some negative angle on the struts!

[koen]

If you look at hydromarine.de you will find what you need(decals)