devil_child wrote:ok well I want a tower bar for the s12 and an over the top one will not work. the s13 will not fit it cuz its too wide, and it wont clear the engine (CA). I've seen some cusco's and what not for the z31's that go around the vg, and I was wondering if the tower dimensions are close, considering they share many chassis and subframe parts.
The bars that go "around" the engine (either in front or behind) are absolute crap. Do NOT buy one of them. Cusco doesn't make them, and there's a reason for that.
They are formed in a triangle with the peak towards the middle of the car. The distance across the engine for the front two points (farthest distance) is 42.25". The hole required for the mount is 3.5" diameter. The distance from the front bolt to the inner and rear bolt is 4.375". The distance from the rear bolt to the inner bolt is 4".