What spring rates do I need?
Springs should typically be compressed 25-30% of the free length when supporting the weight of the vehicle. Drag race cars will normally use a lighter rate spring (about 30%) to promote weight transfer while a street car will use a firmer rate spring (about 25%).
What spring rate do I need 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.
What is suspension spring rate?
In simple terms, a spring’s rate is the amount of weight required to compress itself a single inch. It’s a universal measurement, it applies to everything from lowering springs to valve springs, and it’ll look something like this: 500 lbs/in. The bigger the number, the stiffer the spring.
How do you calculate spring suspension?
How To Calculate Spring Rates
- L = Free Length of The Unloaded Spring (m)
- G = Shear Modulus of Rigidity of Material.
- d = Wire Diameter (m)
- D = Mean Diameter (m)
- N = Number of active coils (an active coil sweeps one full circle)
How do spring rates affect handling?
You might think the higher spring rate would react faster, but in reality, the lower spring rate will contact the ground first, and thus allows for more grip. With a lower spring rate, the force pressing the tire down remains higher longer relative to the amount of travel it has, so it contacts the ground much sooner.
Is higher spring rate better?
Do coilovers ride better than springs?
Coilovers are a great alternative to a lowering spring set up because they allow you to adjust your ride height and come in many setups from daily use to full track use rated. Unlike springs, you are not stuck to one height and stiffness. With a good set of coilovers you do not have to sacrifice ride quality to go low.
How do you calculate the weight of a spring?
Calculate Wire Length
- – Determine Mean Diameter (D) Add one wire diameter to the inner diameter or subtract one wire diameter from the outer diameter.
- – Multiply mean diameter (D) by 3.1415 (Pi).
- – Multiply #2 by total number of coils (N) add two coils (hooks).
- – This figure equals the number of inches in the spring.
How do you calculate spring?
As per the Hooke’s Law, if spring is stretched, the force exerted is proportional to the increase in length from the equilibrium length. The formula to calculate the spring constant is as follows: k= -F/x, where k is the spring constant. F is the force and x is the change in spring’s length.
Does spring rate affect ride quality?
The advantage of a progressive spring is that it can provide a variable ride quality-softer when the suspension is at a normal ride height, and stiffer as the spring is compressed, such as when the suspension is being pushed hard through a corner.
How can I convert spring rates-suspension 102?
The other spring is being measured in pounds per inch; in this case 500 lbs / inch. If you apply 500 lbs of weight to the top of the spring it will compress 1 inch. Now if you apply another 500 lbs of weight it will compress another 1 inch so (1000 lbs will = 2″ of compression). How can I Convert Spring Rates?
How to calculate spring rate for coil over suspension?
For a standard spring rate (lbs / in) to metric spring rate (kg/mm) use the formula. XXX lbs/in ÷ 56 = ( spring rate in KG/mm. Example 500lb/in ÷ 56 = 8.9K Spring Rate. So for a 8 kg/mm spring you would have a 448lb spring, and a 500lb spring is equal to a 8.9 kg/mm spring.
How much weight can you put on a spring?
If you apply 500 lbs of weight to the top of the spring it will compress 1 inch. Now if you apply another 500 lbs of weight it will compress another 1 inch so (1000 lbs will = 2″ of compression). How can I Convert Spring Rates?
What’s the best spring rate for a 170 pound rider?
In most cases there will be five rates to choose from. The site will select, by default, the rate most appropriate for a 170-200 pound rider. (Without Gear) The next softer rate covers 140-170 pounds and the softest under 140. The two stiffer rates are recommended for 200-225 and over 225 respectively.