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Suspension Upgrade Advice

"M" Specific discussion
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RedUn
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Suspension Upgrade Advice

Post by RedUn » Mon Nov 23, 2020 8:33 pm

Frentz wrote: Mon Nov 23, 2020 1:59 pm RedUn, it's simple to see that the situation is not the same of the coup if you want to have a set up for the road and change it on track day.

P.S. "pic from internet"

Image
Ah if you want to change it on the fly yes it's more difficult in the roadster with the trim.

Mostly for track you'd want the rebound anyway which is on the bottom.

As Mr PT says on the newer ones they changed the bound adjusters so you can get to it from the wheel arch if you feel you need to adjust bump too :thumbsup:
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Frentz
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Suspension Upgrade Advice

Post by Frentz » Mon Nov 23, 2020 8:37 pm

MrPT, can you make a pic please?

I am in strong doubt between the two and this is one of the problems.
Z4 M roadster, 2006, saphirshwarz / Sepang Bronze Hell full walknappa (LTA8)

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RedUn
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Suspension Upgrade Advice

Post by RedUn » Mon Nov 23, 2020 10:01 pm

Z4M specific rear damper
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IMOLA Z4///MR

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Frentz
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Suspension Upgrade Advice

Post by Frentz » Tue Nov 24, 2020 1:17 am

RedUn, Wow, thank you a lot.
Z4 M roadster, 2006, saphirshwarz / Sepang Bronze Hell full walknappa (LTA8)

john-e89
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Suspension Upgrade Advice

Post by john-e89 » Tue Nov 24, 2020 9:23 am

RedUn wrote: Mon Nov 23, 2020 8:33 pm
Frentz wrote: Mon Nov 23, 2020 1:59 pm RedUn, it's simple to see that the situation is not the same of the coup if you want to have a set up for the road and change it on track day.

P.S. "pic from internet"

Image

Mostly for track you'd want the rebound anyway which is on the bottom.

Rebound is on the top no...?
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29

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MrPT
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Suspension Upgrade Advice

Post by MrPT » Tue Nov 24, 2020 11:23 am

Yeah. If you picture the needle valve that lets fluid out of the inner tube as the piston moves downwards as being at the foot of the tube, and the needle valve that lets fluid flow through the piston as it moves upwards as being within the piston itself, you can see why rebound adjustment needs to be at the top and bump at the bottom.
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
2006 Z4 2.5si: gone

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RedUn
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Suspension Upgrade Advice

Post by RedUn » Tue Nov 24, 2020 5:43 pm

john-e89 wrote: Tue Nov 24, 2020 9:23 am
RedUn wrote: Mon Nov 23, 2020 8:33 pm
Frentz wrote: Mon Nov 23, 2020 1:59 pm RedUn, it's simple to see that the situation is not the same of the coup if you want to have a set up for the road and change it on track day.

P.S. "pic from internet"

Image

Mostly for track you'd want the rebound anyway which is on the bottom.

Rebound is on the top no...?
Probably, brain not working :rofl:

I can check the destructions if need be, I've got them kicking around somewhere
IMOLA Z4///MR

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Suspension Upgrade Advice

Post by john-e89 » Tue Nov 24, 2020 7:25 pm

RedUn wrote: Tue Nov 24, 2020 5:43 pm
john-e89 wrote: Tue Nov 24, 2020 9:23 am
RedUn wrote: Mon Nov 23, 2020 8:33 pm


Mostly for track you'd want the rebound anyway which is on the bottom.

Rebound is on the top no...?
Probably, brain not working :rofl:

I can check the destructions if need be, I've got them kicking around somewhere
On the top on my E89 KWV’s......taken me about 4 weeks to remember what make they were so I wouldn’t sweat it.... :lol:
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29

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