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Discussion Starter · #1 ·
Just installed set of these, 2011 Coupe. Question is do the arms for the ride height sensors need to be modified? I don't think they're locking out or anything but am wondering if there's some sort of "nominal" position that these are in with normal springs and then are out of that range with the lowering springs that then causes the shock rates to be out of sync?
 

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I made no adjustments to mine and haven't had any issues. I have coupe springs on my sedan, which lowers the rear even more. You may have to modify if slammed on coil overs, but the Eibachs don't drop it enough to effect the mag ride.
 

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Discussion Starter · #3 ·
OK, I just searched through some older posts,
Modded magnetic ride control rods after lowering
AND
READ THIS BEFORE YOU INSTALL LOWERING SPRINGS!!!!!

Apparently there is no difference to the position of the sensor, as long as it is not bottoming out one way or the other.

The problem I'm having is that the car is just too bouncy up front. The dampening rates between the front and rear are different causing a pogo stick like effect. Not hugely terrible but noticeable. My Gen6 Camaro has stiffer suspension and does not ride like this.

I don't think it was doing this last year. I just picked it up in late September and then about a month later the rear shocks went bad and about a month after that it was stored for the winter. I pulled it out this spring and went right to my shop and replaced pretty much just about everything up front except the tie rod ends. Shocks, Eibach springs, CS UCA and LCA bushings, ball joints, tires are good.

The car is just not balanced front to rear. Putting the suspension into sport mode definitely helps, so 1) the mag ride is working, and 2) stiffening the shock rate helps.

Have an alignment scheduled with a shop that just did a lowered Hellcat on Eibachs so I'm really hoping that is what the problem is.
 

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Discussion Starter · #4 ·
After getting it back on the road and aligned there is definitely an extra rebound bounce when hitting the bumps. Kind of like the import tuner cars that get slammed and look like a pogo stick coming down the road. It's certainly not that bad but it's there and I notice it. The alignment shop I took it to did a Hellcat on cut Eibachs and he said that car was even worse but that my car definitely had an extra bounce or two.

There's a disconnect between the spring rates and damping rates. Verified I have Coupe springs for my Coupe, 38148-140. Called Eibach but their tech support is closed until Monday. Definitely has nothing to do with the ride height sensors. I have new shocks all the way around, new LCA and UCA bushings, new balls - upper and lower, new motor mounts, new sway bar bushings. Everything is real tight and smooth except for this little extra pogo bounce.

So is no one else experiencing this? Is this just me or has everyone pretty much accepted that they handle this way when lowered? It gets better when sport mode is enabled, so does everyone just ride around in sport mode?
 

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Installed mine on my sedan (Coupe springs) a few years back and have not had any of the symptoms you are experiencing. The only thing I noticed is a year or so later I started to get that "Squeak" from the suspension. Other than that the car feels great. I always ride in touring unless I'm feeling spicy......! I open the QTP's, put it in sport mod and I'm GONE!!!!!!
 
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