Originally Posted by
fredswain
Saying that something increases body roll or decreases body roll is confusing. Especially when decreasing body roll can result in less traction at that end and increasing body roll can result in more. Or maybe it doesn't? Then you also need to consider that a particular setup isn't only based on the track but also the motor used and the speed on that track, which is where things get really confusing. You may find that a higher average roll center works well on a track when you are running a 17.5 in blinky mode but is undriveable on that same track with a 7.5T in unlimited, where you might prefer a lower average roll center.
It's best to stop thinking in terms of increases or decreases body roll in regards to settings and think more along the lines of what is it doing to camber gain with suspension travel and what effects does that have?
The question was asked "What does changing the link angle do? For example high on the tower and low on the hub"
I dont believe my answer was confusing at all. It is true that doing so will promote more body roll or weight transfer. Your right if you are arguing however, that it depends upon enough grip from the tyres to cause the leverage for the chasis to roll further.
I agree when you say that settings in a car with a less aggressive motor may be fine in the same conditions where a more aggressive motor will make the car undriveable. High grip astro or carpet are great examples where the rear of the car under hard accelaration can roll over on you or collapse because of an aggressive motor. Thats why its important to understand that a camber link change such as what was asked can encourage less/more body roll or weight transfer.