Torque steer solutions

[RC boat addict]

I am hoping for help I am really happy with the speed of my 600 mm 4 s rigger I finally modded a prop myself by learning from different forum tutorials I detongued, back cut ,cupped, polished and balanced a prop and now this little rigger hits 70 mph with acceptable temps but I think she has more speed in her at the moment it needs a bit of Lh rudder to counteract the torque steer I?m hoping some of the racers might have ways of counteracting this torque other than turning the rudder,that don?t cost as much speed.
I?m all ears for any advise if you have proven it by GPS or some accurate method.
I just don?t want to ruin what I?ve got just on a whim but I?m hopping for help.

[Fluid]

What prop? You don?t mention ?sharpened?, a dull prop will cause more prop walk. The prop should be razor sharp.

You can try offsetting the tub to the right, try 12mm at first. Sometimes you just have to use rudder trim.....



.

[srislash]

You can shim the strut to straighten the boat out too. A couple shim washers On the bolts between The strut and hull on the side it steers towards can rectify this problem without creating unnecessary drag

Shawn

P.S: same thing can be applied to the turn fin

[RC boat addict]

Thank fluid,
Oh I missed that it?s razor sharp on the lead edge right up to where the cup starts,
I glued the boom tubes but I have had glued ones shift in a flip in the past they are shiny and epoxy doesn?t grip shiny carbon that well .

[RC boat addict]

Thanks Shawn Moving the strut is something I considered but didn?t know what side to shim.

[Peter A]

Thanks Shawn Moving the strut is something I considered but didn?t know what side to shim.

Shim the rhs. Try using a bit of coke can, loosen off the screws and slip it between the strut bracket and the transom. Add pieces until you are happy with it.

[srislash]

Shim the rhs. Try using a bit of coke can, loosen off the screws and slip it between the strut bracket and the transom. Add pieces until you are happy with it.

That is an easy cheap method, man, I love your thinking Peter.