Lowering springs with OEM adaptive?

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baderlfc
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Lowering springs with OEM adaptive?

Post by baderlfc » Mon Mar 12, 2018 11:02 am

Any experiences of lowering M135/140/235/240's on adaptive?

Thinking of speccing adaptive on a 240, but then i'd want to lower the car either with motech eibachs or the birds BMW springs so would that just defeat the object of the adaptive in the first place?

Alternatively if I didn't go for adaptive i'd probably upgrade the spring/shock combination a year or 2 into ownership to addres...

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Re: Lowering springs with OEM adaptive?

Post by marco_polo » Mon Mar 12, 2018 11:06 am

Lowering on Adaptive is fine. I wouldn't go excessively low though, so would probably go for Birds out of those two personally.
Silver F21 M135i - ManBox - HK - Adaptive + Eibach Pro's - BBS CH-R's - BMWP Drexler LSD - M4 LCA's

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baderlfc
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Re: Lowering springs with OEM adaptive?

Post by baderlfc » Mon Mar 12, 2018 11:09 am

Thanks for that... Out of interest then are the springs different for passive/adaptive cars?

I'd have thought the adaptive dampers would need a spring specially tailored to the shocks? Or is that not the case?

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Re: Lowering springs with OEM adaptive?

Post by motechmike » Tue Mar 13, 2018 3:10 pm

Springs are the same.. 70% of the cars we lower have adaptice shocks on them
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baderlfc
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Re: Lowering springs with OEM adaptive?

Post by baderlfc » Tue Mar 13, 2018 4:13 pm

Good to know, thanks for that

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Re: Lowering springs with OEM adaptive?

Post by Blind Pugh » Tue Mar 13, 2018 5:12 pm

I had H&R then Birds B1S springs on my adaptive car.

Both superb.

Bear in mind that at the time (2013-2015) adaptive upgrades were non existent. Now, Bilstein b6 dampers only or B12 springs and dampers are available.

Believe Billy b12 adaptive may be offered by Motech - no doubt Mike at Motech can elaborate.

If I wanted to retain oem adaptive function and upgrade fixed suspension with firmer/lower stance, b12 adaptive comes in 2 flavours sport-line and pro-line.
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baderlfc
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Re: Lowering springs with OEM adaptive?

Post by baderlfc » Tue Mar 13, 2018 8:35 pm

Very interesting, thanks for the info!

Out of interest what were the drops like on the birds and H&R?

I do think from factory the cars need a small drop if only for aesthetic appeal

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Re: Lowering springs with OEM adaptive?

Post by Blind Pugh » Wed Mar 14, 2018 12:36 am

baderlfc wrote:
Tue Mar 13, 2018 8:35 pm
Very interesting, thanks for the info!

Out of interest what were the drops like on the birds and H&R?

I do think from factory the cars need a small drop if only for aesthetic appeal
Photos of my car on H&R and Birds springs in this B.B. post

viewtopic.php?f=74&t=108439#p1382678
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baderlfc
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Re: Lowering springs with OEM adaptive?

Post by baderlfc » Wed Mar 14, 2018 6:55 pm

Looks good mate, surprised at the stance on the birds ones.. thought I read they were only a 10mm drop?

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Re: Lowering springs with OEM adaptive?

Post by Blind Pugh » Thu Mar 15, 2018 8:52 am

baderlfc wrote:
Wed Mar 14, 2018 6:55 pm
Looks good mate, surprised at the stance on the birds ones.. thought I read they were only a 10mm drop?
My springs were an early version from Birds and I think they were lower - more like 15-20mm drop.

TBH - I only swapped out H&R's because the nose was too low with M4 LCA's only - nose came back up when added M4 TS's. If I'd fitted M4 LCAs and TSs together, I'd of kept H&R sport springs, they were superb [esp matched with H&R ARB's as part of the Birds B1s pack 2].

The joys of being an early adopter I suppose !!! 8)

If H&R sport springs too low then H&R do a -15mm drop for M235i but can be used on any of the mlites TBH. Superb springs IMHO.
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