Quote:
Originally Posted by Dean
I'm not convinced they are significantly moving the RC, and the camber curve is shifted and multiplied, not necessarily better. Under autocross type conditions, once the arm goes past parallel to the chassis, the evil positive camber attack is increased due to the offset ball.
I admit I am extrapolating all sorts of stuff with insufficient data. Without a lipstick cam under his car, I am basing my statements on the theory that the ball extenders are mostly designed to compensate for drop associated with coilovers that also typically have significantly higher spring rates, camber plates, etc. I am just not sure the Prodrive springs are significantly stiffer than stock to allow the RC kits to work optimally. I am not saying they won't do something, just not sure they will do what he wants at under the extremes of autocross.
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Having run many many suspension simulations for strut front ends using many different combinations of pivot positions, I'll say with confidence that I would much rather auto-x a car that has the balljoints lowered 1/2"-1" from an extender kit than a car that doesn't.
Now, if you gave me the x-y-z coordinates for the pivots of an Impreza front end, I could tell you exactly how it will respond in both cases.