naed240sx wrote:Lengthening it would increase camber and track width. Basically the same effect as using s14 LCAs.
While a longer LCA will increase static camber and track width, the most important things it changes are:
1) Kingpin Inclination (KPI) will increase, this will cause an increase in positive camber gain with steer, potentially decreasing your traction in corners as you may lift your contact patch off the ground and ride on your outside sidewall. Some KPI is good because it acts to balance out excess negative camber gain caused by caster angle, but too much KPI will cause you to have a net postive camber gain, and as stated above, this is higly disadvantageous.
2) You will potentially decrease your scrub radius (distance from center of contact patch to the point at which your KPI line intersects the ground. This decreases your steering feel and makes the car feel "muddy" in that the driver gets no reaction input from the steering system
3) You will lower your roll center with a longer LCA. In a street car like a 240sx, the center of gravity is already higher than the stock roll center of the car. Lowering the roll center increases the distance between the CG height and the roll center. This increases the magnitude of your roll moment, and the car will exhibit more body roll in corners.
If this is for a street car, I highly advise against the mod. However, if this is for a circuit car, I highly suggest you get this set up by a professional alignment shop.
Modified by AmoebAssassin at 5:47 PM 7/16/2006