Suspension and Chassis Questions about your suspension? Need chassis advice?

Selecting Coil Spring Rates

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Old May 24, 2005 | 01:48 PM
  #1  
BlueOval1's Avatar
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Joined: May 2005
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From: No CA
Car: 95 Mustang GT Convertible
Engine: 351W Vortech S-Trim
Transmission: Tremec TKO
Selecting Coil Spring Rates

Hello All,

With all the help I've been getting over hear regarding third gens, and I appreciate it, I thought I'd ask this question here as well to get a fresh opinion. (Look for my Newbie intro post for those of you wondering what the hell a Ford guy's doing here)

I'm getting ready to install a Tubular K-member and coil overs and have a few questions. Please keep in mind this vehicle is intended to be a canyon carver, so deterioration in ride quality is not an issue. I want the car planted, period. (The car in question is the 95 GT Convertible)

When selecting spring rates, is the a linear or static relationship between Front/Rear? That is to say, is the F/R relationship a percentage, or is there a formula that states "pick the front rate and subtract X" to arrive at the rear rate? Also, since this is a convertible, will the selection increase or decrease the rate based on the additional weight? The setup will include Koni yellows.

Any suggestions for spring rate combos is encouraged. Thanks in advance for the assistance.

Joe X
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Old May 24, 2005 | 11:01 PM
  #2  
Kat's Avatar
Kat
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From: Upland Pa
Car: Camaro Vert
Engine: 355 HSR
Transmission: A4
Axle/Gears: 3.73 S60
What is the weight of the front and rear of the car and what kind of drop are you looking for?

Kat
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Old May 25, 2005 | 12:02 AM
  #3  
Lucas 89L98's Avatar
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From: Eatonville, WA
Car: 89 IROC
Engine: sb400
Transmission: T5
As soft as possible, only as stiff as necessary. The softer of a spring you can use the better it will handle. As far as how to set up the rear, it really depends on your driving style, to get it perfect you will have to get a set in it, and go softer /firmer from there. Going off weight will get you close, but, when it comes down to it, its just a starting point. Good Luck
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