S Coupe springs on X Sedan
S Coupe springs on X Sedan
Looking for some advice and thoughts/opinions.
Did some research and to me it seems like it might work.
Since the coupe is a bit heavier than the regular sedan, the spring rates should be a bit better to accommodate the weight increase in the X sedan.
The S springs are also lower than the X so it should give me a mild drop, and thats what im looking for.
My only concern is if i missed something about the coupe springs where they would not fit on the sedan at all...
Does anyone know of any significant differences between them?
Thanks,
-IgS
Did some research and to me it seems like it might work.
Since the coupe is a bit heavier than the regular sedan, the spring rates should be a bit better to accommodate the weight increase in the X sedan.
The S springs are also lower than the X so it should give me a mild drop, and thats what im looking for.
My only concern is if i missed something about the coupe springs where they would not fit on the sedan at all...
Does anyone know of any significant differences between them?
Thanks,
-IgS
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A doubt they'll fit and even if they do your using springs that aren't designed for the car. You might as well upgrade to aftermarket springs like eibach or H&R. I believe they eibach started making the X springs recently.
Well as far as i know there was recently a member who put eibach sedan springs on his coupe and it fit perfectly. According to his research eibach told him that the front springs are identical. So the fitment should work.
Im waiting for my friend to be ready with his shop and then we will try to install and see what happens...
Im waiting for my friend to be ready with his shop and then we will try to install and see what happens...
Im not familiar with the X sedan, or any changes in the suspension due to the AWD, so take this with a grain of salt.
The eibach coupe springs and the sedan springs are the same exact front spring. As for fitament, you can check the stock springs diameter with the aftermarket springs diameter and if they match, they should fit.
As for slight weight differences and not using "springs that werent designed for your car" I hear this a lot from people, but think about it that you are putting on custom springs for your car.
When eibach or tanabe or tein or whoever design springs for the car, there is an infinite amount of combinations that they could choose from that would fit the car, and would work.
If only 1 set of diameter and springrates is properly designed for the car, then why are there numerous spring options for the car? prokit, sportline, htech, stech, nf210, gf210, hr, megan racing, etc. All of those springs are different design (progressive or linear) with different springrates. But since they have the same diameter, they all properly fit the car. Same with the stock sport springs. They have the same diameter, just a different springrate and provide a different drop, and therefore a different feel. All are still properly designed for the car, they just provide a different feel.
All these springs have a pretty close variation in drop and a pretty close variation in springrate. Where you get into trouble, is when you drop the car a lot, and dont provide the correct springrate to support the drop. The springs would fit, but the car would drive horribly and bounce up and down like a pogo stick and you would destroy your shocks. However, the stock S sport springs would only be dropping the car a little bit and would probably be a comparable springrate, so I dont see a problem in using them.
Even with coilovers, some companies give you the option of purchasing custom springs if you want to change the springrate of your springs. All the "custom" springs have the same exact diameter, just springrates so you are able to choose the firmness of your suspension and how your car behaves. Some companies have 12/10, others 10/9, others 8/9, others 14/10 and all of them are properly designed for the car. They just change the characteristics of how the car handles and feels.
As long as they fit properly, I view it as putting on "custom" springs. You should just make sure that the combination of drop and springrate isnt outside the envelope of what should be used on the car, which the stock springs arent.
The coupes curb weight is 3642 and the xsedans curb weight is 3791. A difference of 150 lbs IMO isnt that important. Put 2 adults in the coupe and 1 adult in the sedan, which is a common driving configuration, and the curb weights are identical. How could the stock springs designed for the coupe not support that weight?
The eibach coupe springs and the sedan springs are the same exact front spring. As for fitament, you can check the stock springs diameter with the aftermarket springs diameter and if they match, they should fit.
As for slight weight differences and not using "springs that werent designed for your car" I hear this a lot from people, but think about it that you are putting on custom springs for your car.
When eibach or tanabe or tein or whoever design springs for the car, there is an infinite amount of combinations that they could choose from that would fit the car, and would work.
If only 1 set of diameter and springrates is properly designed for the car, then why are there numerous spring options for the car? prokit, sportline, htech, stech, nf210, gf210, hr, megan racing, etc. All of those springs are different design (progressive or linear) with different springrates. But since they have the same diameter, they all properly fit the car. Same with the stock sport springs. They have the same diameter, just a different springrate and provide a different drop, and therefore a different feel. All are still properly designed for the car, they just provide a different feel.
All these springs have a pretty close variation in drop and a pretty close variation in springrate. Where you get into trouble, is when you drop the car a lot, and dont provide the correct springrate to support the drop. The springs would fit, but the car would drive horribly and bounce up and down like a pogo stick and you would destroy your shocks. However, the stock S sport springs would only be dropping the car a little bit and would probably be a comparable springrate, so I dont see a problem in using them.
Even with coilovers, some companies give you the option of purchasing custom springs if you want to change the springrate of your springs. All the "custom" springs have the same exact diameter, just springrates so you are able to choose the firmness of your suspension and how your car behaves. Some companies have 12/10, others 10/9, others 8/9, others 14/10 and all of them are properly designed for the car. They just change the characteristics of how the car handles and feels.
As long as they fit properly, I view it as putting on "custom" springs. You should just make sure that the combination of drop and springrate isnt outside the envelope of what should be used on the car, which the stock springs arent.
The coupes curb weight is 3642 and the xsedans curb weight is 3791. A difference of 150 lbs IMO isnt that important. Put 2 adults in the coupe and 1 adult in the sedan, which is a common driving configuration, and the curb weights are identical. How could the stock springs designed for the coupe not support that weight?
Last edited by philter25; Feb 2, 2010 at 09:33 AM.
The coupes curb weight is 3642 and the xsedans curb weight is 3791. A difference of 150 lbs IMO isnt that important. Put 2 adults in the coupe and 1 adult in the sedan, which is a common driving configuration, and the curb weights are identical. How could the stock springs designed for the coupe not support that weight?
ugh cant wait for the weather to warm up a bit so i can do the install already
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