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-   -   Question about torque twist??? (http://www.rccrawler.com/forum/newbie-general/610985-question-about-torque-twist.html)

Frank211 08-14-2019 09:56 PM

Question about torque twist???
 
Does the motor affect torque twist(the way it's facing)?


The right front tire is the one to left up on torque twist, correct?

Again, thanks to y'all for the help/understanding !

ferp420 08-14-2019 10:10 PM

Re: Question about torque twist???
 
the motor will have some affect but mostly its the direction of the motor that decides what side of the wheel lifts also link geomitry can have some afect on tire lift aswell so say for exsample ar60 axles you can flip the ring gear and reverse the motor and the opisite side will lift or not lift depending on suspention geomitry

altd896 08-15-2019 12:01 AM

Re: Question about torque twist???
 
Torque twist is a function of drive shaft rotation & torque reaction due to gear reduction in the axle.
Motor location can minimise some of it's effect by placing mass on the chassis over the tire thats trying to lift,
Likewise with an axle with offset pumpkin, moving the pumpkin to the side trying to lift can use its mass to try counter the twist
other wise the rotational direction or way the motor is facing has zero effect on torque twist.

Which side lifts is determined solely by which side of the rear diff the ring gear is on & hence which way the rear drive shaft turns, ring gear on left, left front lifts

ferp420 08-15-2019 11:40 AM

Re: Question about torque twist???
 
Quote:

Originally Posted by altd896 (Post 5956379)
Torque twist is a function of drive shaft rotation & torque reaction due to gear reduction in the axle.
Motor location can minimise some of it's effect by placing mass on the chassis over the tire thats trying to lift,
Likewise with an axle with offset pumpkin, moving the pumpkin to the side trying to lift can use its mass to try counter the twist
other wise the rotational direction or way the motor is facing has zero effect on torque twist.

Which side lifts is determined solely by which side of the rear diff the ring gear is on & hence which way the rear drive shaft turns, ring gear on left, left front lifts

ha ha ya thats what i was trying to say but suspention geomitry plays a part as well and the front axle will twist too its realy noticalbe when running rear sway bars

hobbyjumper 08-16-2019 08:06 AM

Re: Question about torque twist???
 
Good question -- it's a thing. Imagine flying one of these. The entire motor (most of the plane's weight) spun furiously while the "crankshaft" stayed put. Pilots always turned right in combat. Pardon the digression.

https://live.staticflickr.com/4839/3...4c8c2c65_b.jpg

ferp420 08-16-2019 08:21 AM

Re: Question about torque twist???
 
Quote:

Originally Posted by hobbyjumper (Post 5956620)
Good question -- it's a thing. Imagine flying one of these. The entire motor (most of the plane's weight) spun furiously while the "crankshaft" stayed put. Pilots always turned right in combat. Pardon the digression.

wow thats some awsome detail on that model lol


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