Originally Posted by
tperazzo
In my view weight transfer doesn't depend on roll or springs. Physics say that weight transfer occurs from cornering forces applied at the center of gravity and only track width and ride height affect weight transfer. The springs can't add or remove any forces to the tires since the downforce can't exceed the weight of the car.
Now if you study the roll resistance of the front versus rear that is where you can see how traction moves around. The softer end gets the most traction because more of the weight is distributed to each tire versus the stiff end which may have one wheel off the ground in extreme cases.
This may differ than conventional tuning wisdom, but this is the basics. More complex discussions can involve camber and tire issues, but in my view its important to take a step back and understand the basics. If your car is rolling, lower the ride height, add aero forces, increase track width, reduce traction, or slow down.
"since the downforce can't exceed the weight of the car."
Down force is a force and weight is a mass. Basis physics is F=MA. Trying to imply that a force cannot surpass mass is a flawed starting point. A vehicle can and typically does create more force than it's mass, it is called acceleration. There is so much wrong here, but no time to write a book. It is imperative to understand basic physics/math to apply these concepts to an R/C vehicle, otherwise you will spends years on the wrong road.
Just my $0.02
Turbo