Rio EP brushless conversion HELP??????? plz

[lenny]

so the width of the trim tabs is ok, just need to extend them away from transom a bit?

Yes.
Or you could make two sets, One sets wider to try to.
And take left rudder off, You do not need it.
It just adds drag and more prop wash interference to.

[aminoacid]

Yes.
Or you could make two sets, One sets wider to try to.
And take left rudder off, You do not need it.
It just adds drag and more prop wash interference to.

I got a 1.34" prop from proboat which is 34mm that fit. seems ok for now but boat is still very difficult to control i can't hit top speed even with this 34mm prop. boat still leans to the right. This is with 1 battery sitting where the stock battery sat which is perpendicular to the hull length butt against the radio box. ESC sitting on the battery also. got center of gravity at 7 inches now. left rudder removed. i still feel the other rudder is contributing to handling quite a bit. If i'm steady at a speed while its leaning a bit to the right of course, it'lll sometimes start going left which to me says prop wash and rudder interference ?

I have yet to extend the trim tabs. any budget ideas? home depot and get a 90 degree corner like peice and cut to length should work? along with extending the turn fins.
I really want to get this boat stable so i can use it. i have a supervee 27 stock hardware and no electronics at all but haven't touched it. I know that will be easier to work with but I have faith in the RIO EP cuz i've seen videos.

[lenny]

I would like to see three pictures of the back of boat,
Looking at the back and down the sides of the boat,
A dead center of back of boat and rudder straight.

Just trying to see if anything look off.

[aminoacid]

some pics
rio1.jpgrio10.jpgrio11.jpgrio2.jpgrio3.jpg

[aminoacid]

rio3.jpgrio4.jpgrio5.jpgrio6.jpgrio7.jpg

[Make-a-Wake]

Wow.........that prop looks huge on there..........is that the stock 42mm prop?

If it ends up where you give up on that big motor, get something more tame, like an 1800kv 3650 or similar.

[aminoacid]

prop is a proboat 1.34" ....so 34mm prop.
my setup is 36-60 2200kv motor, 4s lipo 20c (single battery)

Heres the latest video with that setup. still not stable beyond 60% throttle i would estimate.
VIDEO # ...lost count!!!


'

[Make-a-Wake]

You ever try limiting your servo throw or turning down the Steering rate?

[aminoacid]

i tried lowering the rate, and lowering too much i can't really turn in the pond, i hit shore twice when i ran it today.

[lenny]

I am not sure from those pictures,
But check that your turn fins are straight like the right side picture of mine.Pictures of 36 shockwave 053.jpgPictures of 36 shockwave 052.jpgPictures of 36 shockwave 051.jpgPictures of 36 shockwave 050.jpgPictures of 36 shockwave 048.jpg
Ps Have you checked your temps yet ?
Looks like your water tube from the transit is tight,
How is the water flow ?

[Make-a-Wake]

One thing that hasnt been mentioned is trim tab adjustment. I normally end up with my right tab a bit further down to counteract torque roll, yours look to be even...........bend the right(from rear view) tab down a couple mm's more than the left..........or bring the left one up a bit.

[aminoacid]

water flow is ok i guess, i see water coming out of the side tube. Haven't checked temps with a guage, but everything seems cool when i bring to shore wrapping up my operation for the day. my turn fins are straight.

[aminoacid]

One thing that hasnt been mentioned is trim tab adjustment. I normally end up with my right tab a bit further down to counteract torque roll, yours look to be even...........bend the right(from rear view) tab down a couple mm's more than the left..........or bring the left one up a bit.

i tried that actually. didn't do much. those stock tabs look pathetic honestly. new ones are definately on my agenda (home made of course)
the only other thing is an aftermarket rudder setup but not sure if that will help with torque roll.
If a smaller motor will solve most of the major problems, i guess i can try that but need hobbyking prices and of course hobbyking is always backordered, usually anything I look for on that website is out of stock and not sure who else has similar prices i can look.
the motors i got from them were about $20 each i belieive..maybe 25.

[Make-a-Wake]

I have bought many of these in my RC career.............cars and Boats.........great motors for the $$. This is what i would use if I were wanting to tone it down a bit, still powerful but a bit smaller and less kv:

http://www.hobbyking.com/hobbyking/s..._Inrunner.html

and if you want it to be a mid-speed boat(which will handle better) this will work on 4s and still give you over 2 1/2 times the power of the stock motor.

http://www.hobbyking.com/hobbyking/s..._Inrunner.html

[aminoacid]

the 36-56 is of course backordered. for the 28mm can motor, i'd have to redo the motor mount...not sure how i'd go about doing that without turning this into an overhaul.