BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      05-12-2017, 02:59 PM   #23
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Quote:
Originally Posted by dojk View Post
I emailed Bilstein, they replied recommending the B8 to match the Msport springs that come factory fitted with my 135i.

Having a shortened strut length could be a good thing. If it is too long at full extension, it could be to long that the spring could fall out. Of course I do not know how long the wishbones can extend till the springs do drop out.

Yes the B8 for MSport this is what they recommend in their application guide
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      05-19-2017, 11:51 AM   #24
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Originally Posted by Olgeezer1 View Post
I've done exactly what you're talking about : B6's with stock Sport Pkg. springs. Works great, no issues at all.

I had b6 with lowering springs and no issues for over 35k miles. The pistons are longer in b6, thats it, b8 are for lower springs so that they don't unseat, you will be able to tell of there is a chance of unseating when you assemble the well.... assembly.
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      05-19-2017, 07:05 PM   #25
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B8 is the correct answer. And this is the B12 kit fully-assebmeld with all new strut mounts, shortened bumpstops, spring pads, etc... do it once, do it right!

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Quote:
Originally Posted by dojk View Post
I emailed Bilstein, they replied recommending the B8 to match the Msport springs that come factory fitted with my 135i.

Having a shortened strut length could be a good thing. If it is too long at full extension, it could be to long that the spring could fall out. Of course I do not know how long the wishbones can extend till the springs do drop out.
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      05-19-2017, 07:50 PM   #26
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Quote:
Originally Posted by chris@strutmonkey
B8 is the correct answer. And this is the B12 kit fully-assebmeld with all new strut mounts, shortened bumpstops, spring pads, etc... do it once, do it right!

Attachment 1625470

Quote:
Originally Posted by dojk View Post
I emailed Bilstein, they replied recommending the B8 to match the Msport springs that come factory fitted with my 135i.

Having a shortened strut length could be a good thing. If it is too long at full extension, it could be to long that the spring could fall out. Of course I do not know how long the wishbones can extend till the springs do drop out.
Are you suggesting that everyone get shortened bump stops?
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      05-21-2017, 08:38 PM   #27
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I recall back in the days when the Subaru STi was the car to have.

And of course the aftermarket scene followed on very quickly. Because those cars were designed for rally racing, I heard from modders that there was a optimized level of stroke within a strut that one should target for. Of course that is related to the ride height vs the stroke length of the strut.

Any truth to this?
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      09-18-2019, 06:45 PM   #28
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How do you guys explain the 1/4" higher ride compared to stock ?

I have a 2012 128i convertible with M-sport package and looking to install Dinan front camber plates and would probably take the opportunity to refresh the shocks at the same time.
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      09-18-2019, 06:57 PM   #29
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Just did the B8’s in my C6 Z51. The B8 is for the sport package Z51 and lowered cars while the B6 is for base suspension Vettes. b8 for firmer, tighter ride. I’m assuming it’s similar in the different BMW suspension setups but not 100% sure about it.
The Bilsteins are a very nice improvement over my worn OE Z51 units with 50k miles.
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