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Should I go with Bilstein shocks/ struts and H&R, or Eibach Prokit with Koni?
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[QUOTE]Originally posted by EPIKMACH: [QB] Heres som more MM info....I know its alot, but u should read it.. [QUOTE] Q. How do I compare a front coil-over spring rate to a conventional spring in the stock location? A. The spring rates must be converted into wheel rates. The wheel rate is the spring rate measured at the wheel. The conversion is done through the use of what's called the motion ratio. For a stock Fox Mustang front suspension, the wheel rate is 25% of the stock location spring's rate. For example, an 800 lb/in stock location spring has a wheel rate of 200 lb/in. For a coil-over suspension, the wheel rate is approximately 90% of the coil-over spring's rate. For example, a front coil-over spring rated at 350 lb/in would result in a wheel rate of about 315 lbs/in. Note: The exact motion ratio conversion of the wheel rate for a front coil-over suspension is determined by the angle of the strut. That angle is the result of the camber and caster settings, and by the SAI (Steering Axis Inclination). Q. How do I compare a rear coil-over spring rate to a conventional spring in the stock location on my solid axle equipped Mustang? A. As with front spring rates, rear spring rates must be converted into wheel rates. The wheel rate for the rear of a Mustang with a solid axle is approximately 50% of the stock location spring's rate. For example, a 200 lb/in stock location spring has a wheel rate of 100 lb/in. For a rear coil-over suspension, the wheel rate is approximately 110% of the coil-over spring rate (because the spring is actually behind the centerline of the axle). Also, because the shocks are mounted more outboard than the stock spring location, the rolling rate of the suspension is mildly increased. This helps to reduce understeer. Q. Why does a coil-over spring with a higher wheel rate ride better than a conventional spring with a lower wheel rate? A. Although the front coil-over spring in the above example increases the wheel rate by over 60%, the ride quality will actually improve. A conventional spring located on the front control arm contributes to ride harshness because of friction in the control arm bushings and ball joints. A front coil-over kit eliminates this friction by applying the spring force directly to the spindle and upper strut mount. Coil-over springs are also much lighter than a conventional spring. The resulting reduction in unsprung weight allows the suspension to more easily follow bumps in the road. Rear coil-over conversions provide a similar improvement in ride quality, although it's not as dramatic of a difference as the front kits. Q.What are the benefits of switching to a coil-over front suspension? A. Better handling and better ride quality! When the spring is in the stock location on the control arm, the minimum spring rate for performance handling is 700 lbs/in. Better handling can be had with higher spring rates, but ride quality begins to suffer with rates over 850 lbs/in. A coil-over kit allows the use of wheel rates that are much higher than those obtained with an 850lbs/in spring in the stock location. This will dramatically reduce body roll and brake dive. Other benefits include easily adjustable ride height, the ability to do corner weighting, ease of measuring bumpsteer, less weight, and a wide selection of available spring rates. [/QUOTE] [/QB][/QUOTE]
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