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Anyone Know Rear Bilstein Sport Specs? Compressed/extended/etc.


CubbyChowder
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Hey guys, I am currently building my custom air suspension setup and am in need of a shorter rear shock. After some measuring, I have found that I need something with a compressed height of 10-12" and an extended height of about 19".

 

Does anyone know these specs for a rear Bilstein Sport shock? I know they are meant to be used with lowering springs, but I could also see that they wouldn't be short enough for my needs. Any help would be appreciated, thank you!

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I don't know why this myth persists-

 

for the 2002 only, the sport is the same dimensions as the HD.

 

It's just a lot stiffer.

 

And the answer is, the rears are too long for a serious lowering. 

 

It's hard to find a rear shock that's short enough with the right ends on it...

 

t

Thank you for the response. I have been looking into these Chevy Camaro KYB AGX damping adjustable rear shocks which are a common retrofit on E30's since they are shorter and stiffer and perform great for the money. The mounting points are nearly identical and I think these would bolt right up the 2002 mounting locations with very little to no modification (only the bottom bushing needs a metal sleeve to fit snug over the mounting stud). They are shorter, about the specs I need and are damping adjustable. Has anyone on here ever run these on a 2002

 

Here is link for reference: http://www.ebay.com/itm/KYB-743019-Rear-Shock-Absorber-AGX-Shock-Absorber-/370915910241?pt=Motors_Car_Truck_Parts_Accessories&fits=Model%3ACamaro&hash=item565c4fa261&vxp=mtr

Edited by CubbyChowder
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Standard rear bilsteins will be taller than what you describe and definitely won't rebound to the dimension you suggest.  Not sure if any shock out there would rebound that much.  Not sure what your budget is, but Koni makes a load of motorsport shocks all coil over, pretty sure they would have something that would work in the parameters you suggest.  Koni stuff is expensive though, probably less expensive ways to achieve what you are looking for (Carrera I believe makes a rear shock that will work on an o2).  Good luck with your project.

 

www.alpinabmw2002.com

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post-38814-0-95538100-1382405659_thumb.j

 

And so there you have it......Koni

 

Above, one of my AlpinA/Bilstein Gr. 2 rear shocks - coil over though.  No clue what the valving is (really, really (REALLY) stiff whatever it is......

 

www.alpinabmw2002.com

 

Early on the BmW factory used Koni Dampers on their o2 race cars.....

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