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Carter wrote:
[quote]robweenerpi wrote:
You can use rear ride height too by changing to alternate thickness spring pads.[/quote]
9.3.8.7.2. Spring pads may be removed.
This one is clear. Spring pads can be removed but it doesn’t say anything about alternate sizes.
Carter[/quote]no way to know which pad came on the car, so it is either spring pads installed or removed…
Carter wrote:
[quote]robweenerpi wrote:
You can use rear ride height too by changing to alternate thickness spring pads.[/quote]
9.3.8.7.2. Spring pads may be removed.
This one is clear. Spring pads can be removed but it doesn’t say anything about alternate sizes.
Carter[/quote]
:huh:
For whatever it’s worth, Brad at Digital Chassis in Durham (whom I respect quite a bit), said the entire spring pad thing is a red herring anyway because under load, any of the pads, no matter the thickness, will squish significantly, undoing any advantage they appear to give when the car is static.
Sasha
Ex36 wrote:
[quote]For whatever it’s worth, Brad at Digital Chassis in Durham (whom I respect quite a bit), said the entire spring pad thing is a red herring anyway because under load, any of the pads, no matter the thickness, will squish significantly, undoing any advantage they appear to give when the car is static.
Sasha[/quote]
Agreed
Certainly they’ll squish some more with the added weight transfer in a corner, but doesn’t having more than 600 pounds resting on them in a static condition constitute being under load? Removing the left ones gave us a significantly better corner weight; sure it’s at rest, but they can’t squish down to nothing, and if a few millimeters makes a difference, I’ll take it.
That’d be an interesting experiment; how much to they compress per hundred pounds?
Ex36 wrote:
[quote]…the entire spring pad thing is a red herring anyway because under load, any of the pads, no matter the thickness, will squish significantly, undoing any advantage they appear to give when the car is static.
Sasha[/quote]
The question is what the spring rate is for the combined spring-pad-and-spring assembly.
The springs, too, will squish significantly but I plan on leaving those on the car.
Steve D.
Peakracer.com wrote:
[quote]GRMScott wrote:
Ohhh an experiment! where is Ranger?[/quote]
Lol, like I need help creating more chaos.
But off the top of my head…
Elastomer length/thickness behavior under reasonable compression isn’t too far from linear, just like a basic spring. So it’s reasonable to assume that a 2mm pad compresses around half as much as a 4mm pad under the same load. A simplification, but good enough for our purposes.
Figuring out how much to change height to acheive a given change in corner weights is HS physics. So the easy solution is to just find a “corner weight calculator” that someone else has already put together. Like: