Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

Track coilovers

"M" Specific discussion
User avatar
Vanne
Senior Member
Senior Member
Posts: 1579
Joined: Sun Jul 07, 2013 12:55 pm
Location: Dubai
Contact:

Track coilovers

Post by Vanne » Fri Feb 10, 2023 12:34 pm

BMWZ4MC wrote: Fri Feb 10, 2023 10:26 am Then it’s Beedub who puts us all to shame!

They’re very corroded. Here’s my leaking rear at 35k miles and 7 years showing some corrosion of the spring despite the liberal application of an aerosol of oil from the damper!

87E77CF7-3135-4541-B670-BAE8F722538E.jpeg
I've got a set of those rear ones with jack all miles on em (3 track days)looking for a good home, excellent nick minus the bumpstops.
2007 EuroSpec Z4///MC Building/Developing Z4 GT3
Powered by Severn Tuning

Image

User avatar
BMWZ4MC
Lifer
Lifer
Posts: 6342
Joined: Sun Sep 13, 2009 4:24 pm
Location: Back in the sunshine

Track coilovers

Post by BMWZ4MC » Fri Feb 10, 2023 12:44 pm

Thanks for the offer. I replaced both rears when I found the leak. I’ll get the original KWs rebuilt at some point, but for now, they’re in a box in the corner of my garage with dozens of other car parts that I’m keeping just in case!
Image
Z4MC - heavily fettled for track use
Lotus Exige - sensible daily driver on the mods slippery slope
Westfield SEiW - in hibernation
Modified RS4 Avant - back in Blighty
S2000 GT - gone

User avatar
Argenta
Senior Member
Senior Member
Posts: 1051
Joined: Sat Feb 07, 2015 7:49 pm

Track coilovers

Post by Argenta » Fri Feb 10, 2023 1:35 pm

Current pics of my car in hibernation shows the quality of KW are great, my kit is several years old by now.
The faff adjustment is made a lot easier by making a small lid for rear left bump adjust.
IMG_3063.jpg
IMG_3063.jpg (165.01 KiB) Viewed 582 times
2022-07-03-14-59-22_2ea3364c-5178-4b77-a429-e464de92565c.jpeg
2022-07-03-14-59-22_2ea3364c-5178-4b77-a429-e464de92565c.jpeg (88.66 KiB) Viewed 582 times
371169-4040643-FMAQHpHTbhYndomy.jpg
371169-4040643-FMAQHpHTbhYndomy.jpg (178.48 KiB) Viewed 582 times

User avatar
BMWZ4MC
Lifer
Lifer
Posts: 6342
Joined: Sun Sep 13, 2009 4:24 pm
Location: Back in the sunshine

Track coilovers

Post by BMWZ4MC » Fri Feb 10, 2023 1:50 pm

Argenta wrote: Fri Feb 10, 2023 1:35 pm Current pics of my car in hibernation shows the quality of KW are great, my kit is several years old by now.
The faff adjustment is made a lot easier by making a small lid for rear left bump adjust.

IMG_3063.jpg
2022-07-03-14-59-22_2ea3364c-5178-4b77-a429-e464de92565c.jpeg
371169-4040643-FMAQHpHTbhYndomy.jpg
Are yours V3? As shown in the picture of my leaking rear shock, the rebound adjustment at the top of the Clubsports is a thumb wheel with detents (not via an Allen key as shown in your picture). It’s much easier to adjust through the wheel arch and can be done with the wheel in situ if the car is jacked up.
Your front spring looks like it’s lost some paint, much like my rear springs.
Image
Z4MC - heavily fettled for track use
Lotus Exige - sensible daily driver on the mods slippery slope
Westfield SEiW - in hibernation
Modified RS4 Avant - back in Blighty
S2000 GT - gone

User avatar
Argenta
Senior Member
Senior Member
Posts: 1051
Joined: Sat Feb 07, 2015 7:49 pm

Track coilovers

Post by Argenta » Fri Feb 10, 2023 2:00 pm

The fronts have the std rubber noise-cancelling "hoses", apart from spots of dirt. The rear bumps are adjusted without jacking & gettin the hands dirty. :) The rebound at the reservoirs.
KW V3 yes, I believe from around 2014.

beanie
Member
Member
Posts: 838
Joined: Sun Aug 05, 2012 9:57 pm
Location: Bournemouth/Turin

Track coilovers

Post by beanie » Sun Feb 12, 2023 11:50 pm

Argenta wrote: Fri Feb 10, 2023 1:35 pm The faff adjustment is made a lot easier by making a small lid for rear left bump adjust.
That’s a neat solution :thumbsup:
Image
RUBYIMOLACARBON

User avatar
TomK
Senior Member
Senior Member
Posts: 2363
Joined: Fri Jan 25, 2013 11:50 pm
Location: West London

Track coilovers

Post by TomK » Fri Feb 17, 2023 11:47 pm

beanie wrote: Sun Feb 12, 2023 11:50 pm That’s a neat solution :thumbsup:
Trouble is that kw changed the design I guess around 2015, so the ones you buy now have the bump adjuster at the top of the damper in the wheel well so you need to jack the car up to get to it. No biggy, but it is not as easy as you might hope.
MC[IB], CSL airbox, Schrick 288/280 cams, 4.44FD, UUC SSK, SS race cat back, AP CP9660[F]/5144[R] brakes, Apex ARC-8 with AR-1 or PS5, KW ClubSport 2-way, Turner spherical arms, PMC uniball rtab, VB engine mounts, Rogue pulleys & RSMs, Tillett B6, half cage

User avatar
BMWZ4MC
Lifer
Lifer
Posts: 6342
Joined: Sun Sep 13, 2009 4:24 pm
Location: Back in the sunshine

Track coilovers

Post by BMWZ4MC » Sat Feb 18, 2023 3:16 am

TomK wrote:
beanie wrote: That’s a neat solution :thumbsup:
Trouble is that kw changed the design I guess around 2015, so the ones you buy now have the bump adjuster at the top of the damper in the wheel well so you need to jack the car up to get to it. No biggy, but it is not as easy as you might hope.
They changed it even longer ago than that - when I bought mine in 2013, the rear suspension rebound adjustment was already at the top of the damper within the wheel arch. I bought a pair of new rear dampers in 2020 to replace the leaking damper and found that KW had moved from an Allen key type adjustment to a numbered thumb wheel for bump at the bottom of the shock. My front shocks (again from 2013) adjust top and bottom with an Allen key type coupling.

I don’t find it too much of an inconvenience jacking up the car to adjust the suspension, especially since I most often make adjustments when swapping to my track wheels and tyres. That said, it’s a simple and effective solution for adjustment with the original design.
Image
Z4MC - heavily fettled for track use
Lotus Exige - sensible daily driver on the mods slippery slope
Westfield SEiW - in hibernation
Modified RS4 Avant - back in Blighty
S2000 GT - gone

Mikey_Boy
Member
Member
Posts: 239
Joined: Tue Jun 11, 2013 4:34 pm

Track coilovers

Post by Mikey_Boy » Sat Feb 18, 2023 9:39 pm

I’ll pitch in with my pics…. :thumbsup:
EF9E61EA-DACA-4AC4-BB4E-D1DF73E9DE6D.jpeg
EF9E61EA-DACA-4AC4-BB4E-D1DF73E9DE6D.jpeg (144.99 KiB) Viewed 399 times
37480B0F-D8CD-435D-B1CB-88571910DD33.jpeg
37480B0F-D8CD-435D-B1CB-88571910DD33.jpeg (108.68 KiB) Viewed 399 times
KW are a glorious thing - I had some in the past on an old car and the quality was superb! It was only the faff of adjustment that put me off for the Z… :(

Great to see so many options for our cars! 8)

User avatar
TomK
Senior Member
Senior Member
Posts: 2363
Joined: Fri Jan 25, 2013 11:50 pm
Location: West London

Track coilovers

Post by TomK » Sun Feb 19, 2023 9:06 pm

Nice Mikey 8)
I wish I had compression adjustment like that on the front dampers of the KWs. Instead i have to try and fumble around to insert a 1mm allen key at the bottom of the damper, I mean who came up with that idea and thought it's a good one? :x
kw_ventiltechnik_und_zug_druckstufe_11.png
kw_ventiltechnik_und_zug_druckstufe_11.png (48 KiB) Viewed 362 times
what's more annoying is they do a sensible adjuster just not for this series of dampers :thumbsdown:
kw_ventiltechnik_und_zug_druckstufe_13.png
kw_ventiltechnik_und_zug_druckstufe_13.png (44.87 KiB) Viewed 362 times
MC[IB], CSL airbox, Schrick 288/280 cams, 4.44FD, UUC SSK, SS race cat back, AP CP9660[F]/5144[R] brakes, Apex ARC-8 with AR-1 or PS5, KW ClubSport 2-way, Turner spherical arms, PMC uniball rtab, VB engine mounts, Rogue pulleys & RSMs, Tillett B6, half cage

User avatar
BMWZ4MC
Lifer
Lifer
Posts: 6342
Joined: Sun Sep 13, 2009 4:24 pm
Location: Back in the sunshine

Track coilovers

Post by BMWZ4MC » Mon Feb 20, 2023 6:05 am

It would have been very straight forward to carry that over from their other line of dampers. That’s essentially what we have anyway, but with a non-captive anodised knob.
Image
Z4MC - heavily fettled for track use
Lotus Exige - sensible daily driver on the mods slippery slope
Westfield SEiW - in hibernation
Modified RS4 Avant - back in Blighty
S2000 GT - gone

plenty
Member
Member
Posts: 339
Joined: Tue Sep 10, 2013 11:59 pm

Track coilovers

Post by plenty » Mon Feb 20, 2023 10:30 am

I'll never buy a KW product again with the hex adjuster at the bottom. It doesn't take long, being exposed directly to road grime, before the adjuster seizes and you start rounding the soft metal with your allen key..

User avatar
BMWZ4MC
Lifer
Lifer
Posts: 6342
Joined: Sun Sep 13, 2009 4:24 pm
Location: Back in the sunshine

Track coilovers

Post by BMWZ4MC » Mon Feb 20, 2023 11:40 am

I’ve not had that problem (yet) after 40k miles and nine years.
Image
Z4MC - heavily fettled for track use
Lotus Exige - sensible daily driver on the mods slippery slope
Westfield SEiW - in hibernation
Modified RS4 Avant - back in Blighty
S2000 GT - gone

Post Reply