i did some research and it seems as though i only have like 22 pounds in the rear here are my # 180.64.4. i read somewhere that the first number is the length the second number is the diameter and the last is the spring rating. here is the origin post

Proper way to decode the ground control serial numbers. (not 200/180lb)

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The eibach ERS (eibach racing spring) used for the ground control coilovers are labeled either in metric or english units. It follows the format,

Metric:
xxx.xx.xx

the units are, (mm).(mm).(N/m)

English:
xxx.xxx.xxx

the units are, (inch).(inch).(lb/inch)

The first number of the series does NOT represent the spring rate. It represents the length of the spring itself. The second number represents the diameter of the spring, and the last number represents the spring rates.

So if you have a number like this,

Front 180.64.61
Rears 200.64.44

that means your springs are labelled in metric units. To convert them to english units (used in the US), you must...

divide the first number by 25.4, divide the second by 25.4, and multiply the last number by 5.7

This will give you, Front (8inches).(2.5inches).(350lb/inch) and Rear (7inches).(2.5inches).(250lb/inch)

So the default spring rates are NOT 180/200 it is 350/250.

 

You probably have 225 lbs-in (4 kg-mm) springs.

 

i have another question for some reason ppl say that when they put there ground controls on their agx they did have to cut anything but when i got my ground controls the manual says to cut the drain hole on the spring perch where the weld is? i can figure it out. i have a 98 civic hatch.

 

Probably because nobody else read the instructions.