Dualrate Springs...
psychedelicbeats
11-07-2003, 04:04 AM
i have a really curious question regarding dualrate springs...
how does it work, and more importantly, which way is it put on? i am very new to the dualrate theory where the rate on the springs are separated by two different rates, however i do not fully understand the concept other than it is suppose to be for ride comfort and some performance on the side. so which way does it go? lets take a kg/mm drsport or dr21supersport to start off as an example (kg/mm are the only ones that have dualrate i think :naughty: )
how does it work, and more importantly, which way is it put on? i am very new to the dualrate theory where the rate on the springs are separated by two different rates, however i do not fully understand the concept other than it is suppose to be for ride comfort and some performance on the side. so which way does it go? lets take a kg/mm drsport or dr21supersport to start off as an example (kg/mm are the only ones that have dualrate i think :naughty: )
R.W.240
11-07-2003, 09:19 PM
dual rate springs work by making the spring have a lighter section and heavier section. in a corner the lighter part of the spring is compressed untill it binds the spring then has to start to compress the heavier part of the spring
- hopefully that was a little coherent
most race cars wont use a dual rate spring because if it switches from the low rate to the high rate mid corner it can cause the car to unsettle.
most spring companys sell "progressive" springs but SSC had a technobable about how the only true progressive springs are airbags.
Its like putting on any other kind of spring.
- hopefully that was a little coherent
most race cars wont use a dual rate spring because if it switches from the low rate to the high rate mid corner it can cause the car to unsettle.
most spring companys sell "progressive" springs but SSC had a technobable about how the only true progressive springs are airbags.
Its like putting on any other kind of spring.
SR20DETpower
11-07-2003, 09:30 PM
it seems like the harder area of coils is at the top of the spring, but I guess it wouldn't matter technically which end is where..... it will compress the easiest end first never the less.
psychedelicbeats
11-07-2003, 11:59 PM
suppose the front struts has the harder coils on top and the rear struts with the softer coils on top. what difference can that make?
psychedelicbeats
11-10-2003, 11:06 PM
bump
edit: wouldn't the weight's car affect which end is up top/dn bottom? what if you flip flopped all four? wouldn't that reduce the balance of the car
edit: wouldn't the weight's car affect which end is up top/dn bottom? what if you flip flopped all four? wouldn't that reduce the balance of the car
SR20DETpower
11-11-2003, 08:36 AM
there is a way it is supposed to be put on, look at the directions lol. But Technically it would compress the easiest coils first no matter what end they are on, because they give away easier then the hard spring rate coils.
With a linear type spring this is not an issue and the top of the spring compresses first due to the weight of the car sitting on it and rebounding against the bottom of the spring. This push pull reaction is what puts the load on top and the bottom supports it
With a linear type spring this is not an issue and the top of the spring compresses first due to the weight of the car sitting on it and rebounding against the bottom of the spring. This push pull reaction is what puts the load on top and the bottom supports it
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