anti roll bars

[toddygates]

hello
is it best to have the same size roll bars f/r or bigger front/smaller rear???
will be having strut brace up front aswell
cheers

[Wally]

AFAIK, diameter size is not always a direct indication how stiff its going to be. IIRC, the distance of the trailing arm fixation point to the center of the roll bar is important too. Thats how you can adjust them, again, iirc and by looking at my Whiteline rear sway bar, which is huge (24mm) but surprisingly not really that hard when installed at the outer edge holes of the sway bar ends.

[evilC]

AR bar sizing is a minefield if you don't have the knowledge to set them up. The easiest way to think of the effect an AR bar has is to imagine that the AR bar persuades the vehicle to go straight on in a corner. Principally, the AR bars are there to restrict the suspension movement in roll so as not to give unwanted suspension angles, usually in camber.

So a front AR bar will mean understeer i.e. ploughing straight on when you want to turn a corner.

And a rear AR bar will mean that the rear wants to go straight on when you want to turn a corner i.e. oversteer.

The front/rear balance is a fine one and getting it wrong is easy and potentially fatal! A car with no AR bars is probably safer than one with unsuitable ones front and rear. If you don't know how to set them up buy a package from say Whiteline.

evilC