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2016 hellcat challenger 6 speed
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187 Posts
Discussion Starter · #3 ·
Are too many of the coils bound? I doubt the coils were bound when new. What could flatten a spring that much, if not?
I don’t know much about springs and lowering so I’ve been looking into to some stuff personally the car has 285s on the back and they are tucked until the wheel well some. A mechanic told me it’s just the springs that are that low.
 

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The small irony with springs is that the closer the coils, the lower the spring rate for that section of the spring, but, when those close coils BIND, suddenly your spring rate is infinite, as in, a solid block, in that part of the spring.

I admire cars that are lowered that still retain suspension function. I do not necessarily want to ride in them, haha, but DRIVING them could be more fun, especially around corners.

The Porsche 944 had a uniquely stiff anti-roll property due to stiff sway bars, but it was more prone to the "porpoising" movement due to the springs being relatively humane and there being no "sway bars" preventing the front end or back end from moving in relation to each other.

In suspension design, you can incorporate some anti-sway if you just move the A-arm mounting points higher, but it will not make the car resistant to roll as in the suspension on one side limiting the travel of the suspension on the other side. It just makes it so lateral force on the wheel from the outboard of the car tries to extend the suspension and lateral force from inboard tries to compress the suspension. (EDITED. I had the forces and their results backwards.)

The Nissan 4Runner had this interesting property, especially with a slightly jacked-up suspension height and with taller tires added. It is not a design property that would be attractive to most suspension designers working on cars, however, I have noted from observation.
 

· Registered
2016 hellcat challenger 6 speed
Joined
·
187 Posts
Discussion Starter · #12 ·
The small irony with springs is that the closer the coils, the lower the spring rate for that section of the spring, but, when those close coils BIND, suddenly your spring rate is infinite, as in, a solid block, in that part of the spring.

I admire cars that are lowered that still retain suspension function. I do not necessarily want to ride in them, haha, but DRIVING them could be more fun, especially around corners.

The Porsche 944 had a uniquely stiff anti-roll property due to stiff sway bars, but it was more prone to the "porpoising" movement due to the springs being relatively humane and there being no "sway bars" preventing the front end or back end from moving in relation to each other.

In suspension design, you can incorporate some anti-sway if you just move the A-arm mounting points higher, but it will not make the car resistant to roll as in the suspension on one side limiting the travel of the suspension on the other side. It just makes it so lateral force on the wheel from the outboard of the car tries to compress the suspension and lateral force from inboard tries to extend the suspension.

The Nissan 4Runner had this interesting property, especially with a slightly jacked-up suspension height and with taller tires added. It is not a design property that would be attractive to most suspension designers working on cars, however, I have noted from observation.
Ya looking up some items on how to return to oem springs
 
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