Genesis torque roll issue

[Nolimit]

Hi guys,

I am sure there is a millions postings about how to fix torque roll, that is one of the reason I decided to make a new thread about it. I don't want to try a bunch of things and if it is not working, then I need to make it back to the original setup.
I know it is part of the "Beauty of the boating", but I am just try to avoid any unnecessary things do to. I thought a wise advise could always come in handy before any further invest.
I just put together 36" Genesis, everything custom. Test run shows big torque roll issue, (boat lean to right). Before I invest an extra 90$ for factory balanced props, I would like to get some advise, what would be the best thing to shorting out first.
Here is my setup.

Twin- TP-4060 1700kv on 6s-5000mah, Octura x442 prop on the right side and x442r on the left side. Sharpened and balanced by me, I think I did a good job with that, I will post a video. left side prop turns clockwise and ride side one turns counter clockwise. Boat bitz 130mm small-offset Rudder with dual pickup.

The battery sitting on the middle, the weight is pretty much balanced out in the boat. The bottom of the rudder is 2,1/4 inch lower then the bottom of the blade, It is adjustable.

Low profile strut 110mm long, also adjustable up and down.

The only thing I tried to do, I put a single washer between the strut attachment and the transom on the right side on the right side on the attached screw, so the strut kind a leaning to the left, but did not worked. I torque roll issue still remain.

I would do a video, but the water is to choppy today.

I know that ,here is a lots of Genesis owner, I hope some of you won't mind to give me some ideas, since I am kind a new in boating , this is the part when I definitely need some good advise.

Thank you guys!

here is the link for the balanced props. Please tell me if is not good.

https://www.youtube.com/watch?v=c3mz-yLlBaQ

https://www.youtube.com/watch?v=PRtSIYXr3vY&feature=youtu.be

[NativePaul]

Sharpen the prop on the right some more, from the videos the left side one looks very blunt, I cant see the leading edge of the right one but from the description of the handling I assume that it is even worse.

[Nolimit]

Thanks, I will do it

[grsboats]

Agreed with Paul.

[srislash]

And try to take some off the face rearward. The slimmer that blade is the easier it cuts through the water eliminating torque roll and prop walk. Don't make it too thin or it will fold up due to lack of strength. Try some first and you should notice a difference.

[jim82]

The props need work plus all that weight on the tunnel does not help. When building a fast cat try and balance all the weight in the sponsons, its like making a SUV less top heavy.

[SD Eracer]

TheShaddix had a twin Genesis as well, but he stuck his batteries in the sponsons and the ESCs down the center, you really want all the heavy weight down low. You may have to trim the edges a bit so the batteries can slide in.

However, have you checked on the amount of gap you have between your drive dogs and struts? I normally have about 5mm there on all my boats.

I had an issue with torque roll one time with my HPR, because I accidentally left only 2mm of gap on the left side and caused some friction during full throttle, causing the other motor to overpower the boat on the right side.

Here is a picture of how he setup his ESCs and batteries, his setup was very similar to yours: Leo 4074 2000kv motors, Seaking 180a v3, x447 props, Revolectrix 6S, 70C, 4200 mah.

[Zsolt Rebek-Nagy]

Hi Guys,

I am Nolimit, who started this thread, just have some log in issue, so I had to log in differently

Yes the gap between the drive dog and strut is about 2-3 mm. I will adjust that.
Also, I will try to place the batteries on the side. The only reason I put them in the middle, because the batteries so thick and really hard to take them in and out from the sponson.
But I will try...
Can I use bigger prop? Or that would be to risky? I mean like 447 or 445 or any other but bigger then what I have.
The boat seems like very slow...

Thanks for the help.

[SD Eracer]

TheShaddix boat probably did about 90mph, it was so crazy fast the first time he tested it out, it jumped out of the water and landed on the banking. I was scary fast.

Considering you both have similar setups (minus 250kv) and cell count, I don't see why your boat isn't just as fast. This part is critical, if you are using Seaking ESCs, DO NOT FORGET TO SET THE THROTTLE CALIBRATION!!! If you haven't its likely the cause of your slow speed. Next time you go out, turn on your transmitter, hold the throttle at 100%, turn on the ESC(s), they will beep twice, release the throttle, one long beep followed by 6 beeps (if on 6S).

Anytime you change out motors/ecs, or adjust your throttle trim, you need to setup the throttle calibration, or you will be running at about 90% instead of 100%. I personally do at the start of each session I run. It only takes a few seconds to do.

Going from 42mm to 45mm on my HPR resulted in about 3-5 mph difference. I jumped straight to 47mm props because of how cold my boat was running, and gained about 10mph. It should be noted that I run SSS 4082 2000kv motors on 6S, they run a lot cooler and less amps than a Leopard or TP motor.

After a 3 minute full throttle SAW run on 6S, my motors rarely get beyond 105F, my ESCs 115F on the heatsinks, and about 115F on the batteries.

[Zsolt Rebek-Nagy]

I will check the throttle settings. Can I jumped to 47mm or that would be to much for the 1700kv?
Thanks for help!

[Zsolt Rebek-Nagy]

I am using Turnigy Marine 180A BEC esc.

[SD Eracer]

I would stay with the 42mm for now until you get the boat running properly. Next time you run, check your temps, and amp usage, which will give you an good idea how much you can prop up. But make sure they are sharpened and balanced well to make the most of the props you are running now.

Put that 4mm gap between the drive dog and the strut, and I cannot stress this enough, do your throttle calibration for both SeaKing ESCs. Also, make sure you have the program settings on the ESC for 6 cells, do not use auto detect lipos setting. Make sure you have the correct timing programmed as well.

Also, your torque roll could be from one of your ESC not having proper throttle calibration. Because if one of them is calibrated and the other isn't, one side would be putting more power out than the other.

[Zsolt Rebek-Nagy]

Thank you for staying so patient with me and trying to help. I am kind a new in boating, I am really appreciate your advices.
I set the timing for the recommended setting. I think it was 18.75. Should I go with 15 if the esc or motor getting hot?
One more thing, Should I do the esc throttle calibration one by one or just once for both at the same time?
I ordered two brand new factory sharpened and balanced x442 octura prop. Will see how's that will work.
I hoping my genesis will fly just as TheSaddix genesis.

Thanks,

[MG1234]

I'm also getting a twin ready to go back in the water,I run seaking 180s ,installed castle cap banks ,installed from anouther boat TP 2050 kv ,I did calibrate the ESC s,but one motor always spins before the other ,on the bench,I swapped reciever wires ,no difference ,I removed the flex shafts and it still does it just not as bad ,when I spin the props by hand they both spin freely ,don't know what else to do ,these motors are so hard to remove or I would swap them ,help please ,PS really nice Genesis ,

[Zsolt Rebek-Nagy]

I have the same issue. The one with BEC wire has disconnected, start to spin before the other that has BEC.