don't want to lower my z too much
#23
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sweet thanks for all the advise guys! i'd like to do coilovers but im not going to be tracking the car so spending that much on coilovers when i'll only adjust them once isnt worth it for me. plus im not slamming the car for it to be so harsh on my stock shocks and struts.
as for the cobb how's the ride comfert and how much is the drop?
as for the cobb how's the ride comfert and how much is the drop?
#24
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To complicate things a little more I would say the Swift Spec R's have a moderately-aggressive stance and feel pretty comfortable with stock shocks. I'd say its a good compromise between the ride and performance for a non-coilover setup. They also have a progressive coil that is soft on the initial travel and progressively gets harder.
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I have since switched over to the Tanabe GF210's which drop the car alot more. They are also a progressive rate spring. The ride is not as good as the hotchkis, and I kno that my shocks will be going out a lot quicker as well.
The wheels are 19x9.5 +12 and 19x10.5 +12. Falken FK452 255/35/19 and 285/35/19.
#26
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Just to clarify, here is an excerpt on linear vs. progressive:
There are two types of spring designs: linear and progressive. This refers to their rates as the spring is compressed.
Linear springs have the same spring rate from the initial compression all the way to full compression. If a linear spring is rated at 6.2kg/mm (and lets say its range of movement is 50mm) then it takes 6.2kg to compress the spring from 0mm-1mm and 6.2kg to move it from 49mm-50mm.
A progressive spring will have a softer rate for its first few mm of travel, which then increases as you increase the load on it. Lets say we have a progressive rate spring with the same range of movement as above. While it may only take 4.4kg to move it from 0mm-1mm, it may need 7.1kg to move it from 49mm-50mm.
A progressive rate spring is clearly a compromise between softness for ride and firmness for handling. As such, it is more suited for the street. The softer initial rate gives it better compliance, especially over a low amplitude bump. But once you start loading up the suspension the firmer it becomes, so your flat-out cornering is improved.
A linear rate spring would be a better choice for the track, where you do not need to compromise handling for anything. Consistency in the spring rate gives you a better feel, since the car's weight shift isn't as variable. Since your springs are at maximum stifness, initial response is quicker as the car won't want to lean onto its outside suspension as much before the spring resists the movement and the car starts to turn.
I myself prefer the feel of linear rate springs, but they do sacrifice on initial ride quality. I'm going to take hotchkis and gf210's as an example. The hotchkis definitely felt "stiffer," as in you can feel the little bumps in the road more and you get more of the feel of the road, however, overall it was still very much like stock(which are linear as well). The gf210's feel very mushy, i can barely feel the road. However when hitting bigger bumps, the suspension definitely stiffens up substantially. I have never tracked a car on progressive springs, but I imagine that it may be a little tricky. Some have called it "unpredictable." Something to think about.
Also, most if not all coilovers employ linear rate springs.
There are two types of spring designs: linear and progressive. This refers to their rates as the spring is compressed.
Linear springs have the same spring rate from the initial compression all the way to full compression. If a linear spring is rated at 6.2kg/mm (and lets say its range of movement is 50mm) then it takes 6.2kg to compress the spring from 0mm-1mm and 6.2kg to move it from 49mm-50mm.
A progressive spring will have a softer rate for its first few mm of travel, which then increases as you increase the load on it. Lets say we have a progressive rate spring with the same range of movement as above. While it may only take 4.4kg to move it from 0mm-1mm, it may need 7.1kg to move it from 49mm-50mm.
A progressive rate spring is clearly a compromise between softness for ride and firmness for handling. As such, it is more suited for the street. The softer initial rate gives it better compliance, especially over a low amplitude bump. But once you start loading up the suspension the firmer it becomes, so your flat-out cornering is improved.
A linear rate spring would be a better choice for the track, where you do not need to compromise handling for anything. Consistency in the spring rate gives you a better feel, since the car's weight shift isn't as variable. Since your springs are at maximum stifness, initial response is quicker as the car won't want to lean onto its outside suspension as much before the spring resists the movement and the car starts to turn.
I myself prefer the feel of linear rate springs, but they do sacrifice on initial ride quality. I'm going to take hotchkis and gf210's as an example. The hotchkis definitely felt "stiffer," as in you can feel the little bumps in the road more and you get more of the feel of the road, however, overall it was still very much like stock(which are linear as well). The gf210's feel very mushy, i can barely feel the road. However when hitting bigger bumps, the suspension definitely stiffens up substantially. I have never tracked a car on progressive springs, but I imagine that it may be a little tricky. Some have called it "unpredictable." Something to think about.
Also, most if not all coilovers employ linear rate springs.
#27
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Just a quick FYI , the hotchkis springs are based off the 03 to 04 spring rates and made to work the the 03 to 04 struts. The Cobb springs are based of the revised 04.5 and newer spring rates and made to work with the revised shocks. I would go Cobb
#30
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sosojeffcc-you've been a huge help! thanks so much! i think i will go with the hotchkis setup, i like the way it looks and i think i should clear the driveway haha. now with that tire size and offset do you have any rubbing issues? and are your wheels and tires flush with the body or do they stick out a little? im really between the 12 offset and 22 offset. maybe a pic from the front would help so i could see how far the wheels stick out. thanks again
terrasmak- thanks for the help as well but do you have any pics of the cobb setup i can see? sosojeffcc is running those springs on the 08 which is the same as my shocks...
ojiggyo- pics please??
terrasmak- thanks for the help as well but do you have any pics of the cobb setup i can see? sosojeffcc is running those springs on the 08 which is the same as my shocks...
ojiggyo- pics please??
#31
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sosojeffcc-you've been a huge help! thanks so much! i think i will go with the hotchkis setup, i like the way it looks and i think i should clear the driveway haha. now with that tire size and offset do you have any rubbing issues? and are your wheels and tires flush with the body or do they stick out a little? im really between the 12 offset and 22 offset. maybe a pic from the front would help so i could see how far the wheels stick out. thanks again
terrasmak- thanks for the help as well but do you have any pics of the cobb setup i can see? sosojeffcc is running those springs on the 08 which is the same as my shocks...
ojiggyo- pics please??
terrasmak- thanks for the help as well but do you have any pics of the cobb setup i can see? sosojeffcc is running those springs on the 08 which is the same as my shocks...
ojiggyo- pics please??
About my setup:
The rear fenders are what you have to worry about. My rear fenders are rolled, and it is an absolute must, or else you will rub. Even with a roll, the +12 and 285 combo may still rub, depending on your brand tires and what your camber is like. I happened to get lucky and don't experience rubbing. If you want to be worry free and no roll, get the +22/275 combo. A +22/285 combo will still require a roll in most cases. Here are some more pics of the rear:
#33
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i mean from the front looking at the side of the car. im basicly wanting to have a flush look but nothing sticking out. i hear the 12 up front is perfect but the rear im worried about. i would rather not roll the rear but if i need to for the look i want then i will.
#34
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Its the same drop as hotchkis, the pics will look the same. Hell if you were to do a 20mm front and 23mm drop with coilovers, IT WILL LOOK THE SAME.
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