Mini Cat Racing USA ROCKS!!

[SweetAccord]

Steve, OSE has a Jokes and Off Topic Q & A sections. I just feel this would open OSE and the boating experience more on all levels, and to many more people, isn't that the idea of this board?

So asking nicely here, would it be inappropriate to let OSE members take a vote on this? If not I'll suddaap.

Thank you kindly.

[SweetAccord]

???

[SweetAccord]

????

[SweetAccord]

Any input on this Steve?

[badag98]

Anyone know the actual specs on the Micro Hydro? What is the Stock Motor size, Motor shaft Dims; Flex cable dims; or the coupler, is it 2mm to 3mm? how about the stock prop is it 32mm or 30mm. Different sites have different information.

Any help would great. I am looking to upgrade the stock set up but not sure what will and will not work.

[SweetAccord]

Anyone know the actual specs on the Micro Hydro? What is the Stock Motor size, Motor shaft Dims; Flex cable dims; or the coupler, is it 2mm to 3mm? how about the stock prop is it 32mm or 30mm. Different sites have different information.

Any help would great. I am looking to upgrade the stock set up but not sure what will and will not work.

I'm more than happy to share info with you, just too bad there is not a dedicated place on OSE for these smaller boats so not to bogg this area, anyways.

These motors are 20-40, meaning 20mm in OD and 40mm in length. The stock motor is actually 20.59mm OD and 41.19mm in length if you want to use the same water jacket. Any length is fine and any 20mm class motor should be fine. What you didn't mention but should be aware of is some 370 motors will fit but the key is what is the motor mounting screws spacing shold be. That is always going to be 16mm from center to center hole and the thread is M2.5, but after market may vary. Remember there is a hole in the motor mount so if you find a motor be sure that that is not larger that the motor mount hole. I have not seen this yet on any motor so far.

The stock motor shaft is 2.3mm and not slotted on the shaft. After market ones will vary is size on the shaft and some are slotted and the lenghts are different but don't worry all are short enough to fit.

The flex cable is with the prop shaft is exactly 8" long and diameter of the cable is .0945" or 2.40mm. The coupler is 2.4 mm ID. The coupler is 23.98mm in length and 7.93mm OD. Yes, the Stock prop is 30mm.

Hope that helps.

[badag98]

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=4196

This is the motor I was looking at, with this water jacket.

http://www.offshoreelectrics.com/pro...?prod=gnd-4195

And the ESC

http://www.valuehobby.com/product_de...27&item_id=165

Any thoughts?

[SweetAccord]

http://www.hobbycity.com/hobbycity/s...idProduct=4196

This is the motor I was looking at, with this water jacket.

http://www.offshoreelectrics.com/pro...?prod=gnd-4195

And the ESC

http://www.valuehobby.com/product_de...27&item_id=165

Any thoughts?

That ESC is perfect and you can get the same one re-branded as Turnigy on HK. Get the programming card too. People say it does not work but it does. They are doing something wrong, not sure what. As for the motor it's larger than 20mm but meets all the other specs but be aware the thread hole is larger for the motor being M3 not a big deal. At 3790kv is good place to start. I'm at 3600kv and its the the sweet spot for these hulls, and I feel they can take more. A larger and heavier motor may upset the balance also. I can't say as have not used anything larger than a 20-40 and don't find that it's needed so far.

The water jacket says will cover 20-28 so seems ok but not that wide? The motor is 45mm in length. Maybe two on it will be ideal. Link them together with a piece of tubing.