Originally Posted by
Marc sierra
Yes I have also done some measurements and calculations for the rear roll centre. With the 6 degree beam and my current ride height it can to approximately 3.8 cm. The calculations also show the rear camber and toe for a given bump/droop of the wheel.
With a normal beam the roll centre would be roughly 3 times higher. The reason for that is that a normal beam has a sweep angle of 18 degrees, which is 3 times more than the 6 degree beam. Raising the rear roll centre could in theory be done by moving the inner pivot point of the arms up, but in practice there is no room so you would have to cut a hole in the floor. Besides, I'm not sure if there would be any benefit from raising the rear roll centre.
Thanks alot for that info!
I havent actually checked if there is room between the mount and the floorpan and I'm not going to cut in it so I guess I'll leave it be then. As i understand it u want a higher rear rollcenter than u have in the front. (rollaxle should tilt down from the rear end to the front.) This because the rear end needs some "time" to react to what the front end is doing during turn-in. Otherwise the rear end "lags behind". This in turn can create understeer thou....
I'm already running very stiff springs and would as u are doing try to limit the roll with the stiffness I have.
I finaly sorted a set of 3dr hubs and going to run Scorpio mk1 Cosworth (granada for u guys on the island) arb along with a quaife ATB in the 6 degree beem.
Hope the car will be alot better on the tracks this summer. Guess I'll have to update my own thread soon since I have done quite alot since last update.
// Jimmy