hi
for what served Center of Gravity ?

Center of Gravity served for intall "ladder bar"

 

?? Not really sure what you're asking because you never really asked a question.

If you want to find center of gravity, you need to weigh the car a couple of times. The first part is easy. Weigh the car with the front wheels on the scale. Weigh the cars with the rear wheels on the scale. Weighing the car with all the wheels on the scale should equal the front and rear weight combined.

Knowing the front and rear weight, a front to rear weight ratio can easily be calculated. Third gens are all nose heavy.

The second part of finding the center of gravity is the CG height. This takes a bit more work and I'm not going to type it all out. Just go read this web page on how to figure it out. Typically the CG height is guessed at camshaft height which is close enough.

http://www.longacreracing.com/articles/art.asp?ARTID=22

 

for install "LADDER BAR" necessary center of gravity

 

You have very few choices for IC location and CG isn't a factor you can deal with using ladder bars.

Depending on how many holes are on the front mount, install the front mount so that the bottom bar of the ladder bar is parallel to the ground when in the middle hole.