EKOS clone and upgrade questions.

[LarrysDrifter]

I think you can get them from Gravesrc.com.Might have to google them to get the correct web address.They are in Florida too!Fast shipping for Fightercat.I bought mine from Phil Thomas at the district 6 race in Illinois a couple months ago.Its also has a breakaway .You can see pics of it on my EKOS on the SeaKing 120 thread here in the EKOS part.They cost around $40 or so,but they are worth it.Graves has em for about the same price.I think it just says mini hydro on the package.Hope this helps.

[JPriami]

just finished sharpening my venom pro machined props. I noticed that the edge on them was blunt and squared.

[Brushless55]

ran again today after work for about 8.5mins then brought it back in. I have a timer on my radio remind me. It ran good and strong the whole way through.
I just finished charging the first pack and you wanted to know what mAh its putting back into the packs. the software says 4059mAh. Past couple times i have charged the packs at 5-4amps.

Thanks for the info

[JPriami]

I was thinking of making a harness for the batteries and the esc's to connect a little differently. And I'd like some other input on it.
I plan on making the 2 lipo batteries connect in parallel so that the packs voltage is the same but the packs capacity (mAh) is doubled (5000mAh x 2 = 10000mAh). I want to do this so that both packs are run down equally since the setup on these boats is 2 separate motors and 2 separate speed controls. Also because I have my radio system setup to drive each motor individually for maneuvering & testing purposes. Another reason I want to do this is from what I read on C ratings and how they work that by doing this you may save your packs from damage of puffing if you pull more than the single packs C rating.
Example of the last part explained:
One 11.1v 5000mAh 20C pack
5000mAh = 5 amps
5 amps x 20 = 100 amps continuous discharge
------
Two 11.1v 5000mAh 20C packs wired in parallel = 10000mAh /10amps
10 amps x 20 = 200 amps continuous discharge

I may have forgotten part of my electrical theory that’s why I am asking others who have it fresh in their heads so I can get input/feedback and double check my idea before I try it.

[Brushless55]

You are correct about the parallel setup having double amps but keep in mind you are still feeding two motors..
so its really about the same, but this will help things be more consistent
you still have 5000mah per motor = 10,000mah (parallel) for two motors
your setup right now is pulling 28amps cont per motor or 56amps totall

[JPriami]

First vid i have made of it. The vid was of the whole runtime but I had to cut it down to fit. im on a limited internet bandwith also. At one point in the vid i had the little camera on the boat clipped to the metal antenna stub. But the wind just about blew it off the boat. I have a mount I am going to use next time I get to run it. Also there was some weed in the water today and kept getting caught on my rudder. had to bring it back in a few times to check and make sure it was off.

[Rumdog]

Looks good!

[forescott]

Nice! If you can, mount the camera facing backwards. It makes for an awesome vid with the dual drive roost!

[JPriami]

Thanks. I might try that.

[JPriami]

There is something up with my left side driveline. I dont know if its the strut and a bearing or what. When the props spinning at certain rpm ranges it has a vibration to it. Even with the prop off it seems to make more noise than the other side.

[Bug777]

Remove your wire drive as well. This will show if there is something in the engine as well.

[JPriami]

what strut angles seem to work well for other owners of these boats? The water I run is is pretty calm on a lake. I was running + 1.5 and now I have set it to about +2 (props pointing upwards to force nose of boat up to get more out of the water). But I havent run it with this setup yet.

[Skullcracken]

You ainta kiddin there.I have about $600 in my EKOS upgrading everything.But now its fast and fun.Untill I wreked bad Monday.Went 66mph and got air.You can get wires from rcraceboat.som.They go right in.Should be the same for your boat as the EKOS.

What are good replacement motors for the EKOS. I was considering buying another blackjack motor and replacing the EKOS stock motors, and run 4s to each. I'd like to get mine 55mph+. Any suggestions.

[forescott]

Feigao 380-9 or 10xl's. Here @ OSE

[Diesel6401]

Feigao 380-9 or 10xl's. Here @ OSE

380 9xl or 10xl, or the ammo 28-45's. The fiegao's would prob be better JMO. I don't own the boat.