one for the gurus, i'm a little confused, as usual...

[jimbob82]

whilst re-reading a book on chassis setup/suspension today I think I got myself confused, yet again.

If the CoG is above the front moment centre and the vehicle turns into a left hand bend the moment centre moves to the right, making the chassis roll clockwise (lookin from behind) along the axis of force/gravity.

That bit I can understand and is simple physics to me. where I confused myself was (probably overthinking made it worse):

if the CoG is BELOW the front moment centre and the vehicle then makes the same turn left on exactly the same corner and path, the moment centre moves to the left but how does this affect chassis roll? will the chassis roll anti-clockwise? and would this be a good or bad thing for a track setup?

i'm pretty sure i've thought about it the wrong way but I coould be correct, :lol:

[jimbob82]

thanks for that ^^

so the way I understand this is that the centre of gravity should always be above the moment centre, but should be as close to it as possible to reduce chassis roll, on a track/race setup. with everything else setup to match.

is there any instance/car that has the CoG below?

[jimbob82]

Thanks. That's made more sense than trying to understand the way its put in the book. I always want a car to roll to a certain extent for the reasons u describe above.

If you want to rock you gotta roll

[jimbob82]

TheLastPost said:

...forces suddenly changing direction in the middle of a bend is not usually going to generate a happy situation!

isn't that along the lines of what was wrong with Senna's car? not the fatal one but I remember seeing him in the recent film complaining (quite rightly) about the car sort of doing what it wanted. wanting to spontaneously change direction mid corner...?