Quote:
Originally Posted by Bill Verburg
The thing to know to compare t-bars to coils is the motion ratio that gives the actual wheel rate
this is a slippery piece of information because it isn't a constant so you have to use an average
for a 911 w/ stock suspension arms
front motion ratio on average is 0.894
rear motion ration on average is 1.018
wheel rate =motion ratio^2 * spring rate
spring can be either t-bar or coil
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Bill, can you explain that formula. The 3 items between motion ratio and spring rate.