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What is a good spring rate for coilovers?

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What is a good spring rate for coilovers? With a typical street car, you’re looking for the weight of the vehicle to compress the springs 25- to 30-percent. For drag cars, you will typically want between 30- and 35-percent of the spring to compress.

Does stiffer suspension help acceleration? Because lowering means getting stiffer springs, there is less weight transfer when you hit the gas or brake hard. This means you’ll enjoy faster acceleration and quicker stops. Lowered vehicles are more aerodynamic.

Do lowering springs ruin ride quality? One popular method for lowering a car that most budget-minded enthusiasts opt for is using lowering springs with the car’s OEM (stock) shock absorbers. While this is indeed a very cost-effective way of lowering the car’s ride height, it doesn’t help much in terms of the car’s ride quality.

What shock spring do I need for my weight? The standard formula is based on a 60:40, Rear to Front weight distribution. Add 5% for a heavy rider (+200lbs.) Subtract 5% for a light rider (150lbs-) Add 2% for a recreational or beginner rider (more rearward bias)

What is a good spring rate for coilovers? – Related Questions


What spring rates do race cars use?

 0.5 – 1.5 Hz for passenger cars.  1.5 – 2.0 Hz for sedan racecars and moderate downforce formula cars.  3.0 – 5.0+ Hz for high downforce racecars.

Is higher spring rate better?

Higher spring rates will give you a firmer feel, and many racecar drivers tend to prefer stiffer springs to reduce body roll and body lean. They also want low ground clearance to maintain a low center of gravity. On smooth tracks, they don’t need to worry about bottoming out and damaging the chassis.

How do you calculate spring rate?

To calculate the amount of spring rate you will need on order to meet your working loads, simply divide the load you will be applying on your spring by the distance you expect your spring to travel or compress under that load.

What is a high spring rate?

Spring Rate refers to the amount of weight it takes to compress a spring a certain distance. The higher the spring rate, the stiffer the spring.

What is a good spring rate?

Springs should typically be compressed 25-30% of the free length when supporting the weight of the vehicle.

What does 8K spring rate mean?

What does it mean when they say 8K or 500lb Spring Rate? When someone says “8K” they are shortening the metric measurement of the spring rate; in this case 8 kg/mm. What this means is that if you apply 8 kilograms of weight to the top of the spring it will compress 1mm.

Does spring rate affect ride height?

A lower rate spring that lowers the ride height of the chassis with no bumpstop trimming, making the bumpstop more active, would feel about as stiff as a higher rate lowering spring with the bumpstop trimmed, making the bumpstop less active. Also, the amount of ride height lowering also affects suspension rate.

Is spring force equal to weight?

The force on the mass due to the spring is proportional to the amount the spring is stretched. There is a point at which the spring force and the weight are equal in magnitude but opposite in direction. This point is called the equilibrium position.

Are shorter springs stiffer?

Shorter springs have higher a higher strain for the same amount of elongation and since F (force) is affected by strain, the k value must increase.

Is spring rate the same as stiffness?

Spring stiffness is based on spring rate . It is also mostly based on proportion though. A ten pound rate may not seem like much on a large spring but on a small spring, it might be just enough. If you lower the amount of coils, you’ll increase the spring stiffness which is the spring’s rate.

How stiff are H&R springs?

H&R – Uses a very stiff 54SiCr6 alloy spring steel that has a higher progressive spring rate than the Eibach springs. That results in less body roll and firmer more precise suspension control.

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