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Bill Verburg Bill Verburg is online now
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Join Date: Dec 2000
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Quote:
Originally Posted by j911brick View Post
I did some research and I cant seem to find the information I'm looking for. I'm building a 930 RSR tribute with 935 suspension upgrades and coilovers. I'm having trouble choosing an educated guess on spring rates and shock rates for the initial setup. The car will be used mostly for street and hill country driving. It will be a semi stripped down car with 930 powertrain and RSR fuel tank. Looks like I have two options for rear coilover shocks, and two options for front inserts (HD & B8. I already have the coilover struts). The car will be running 15" RSR wheels with spacers (If needed).

So what would be a good guess on my spring rates and shock options?

TIA James
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 Verburg
'76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone)
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