A few bits and pieces and a trip to Spa - New Windscreen

sixspeed said:
…I'm a bit fed up with my KW Clubsports (I have to keep rebuilding the rears).....

Andy, how have the problems with your rear dampers manifested? As I mentioned a page or two back, one of my rear dampers started leaking at c 35k miles and I’m hoping that won’t become a recurring theme given your comments.
 
sixspeed said:
Just found this thread (not surprising considering I don't come on here too often these days). Love the car Mikey! Whereabouts are you based?

I would be very curious to experience what the car rides like on track sometime with those Intrax fitted, as I'm a bit fed up with my KW Clubsports (I have to keep rebuilding the rears). Plus as Tom mentioned and hit the nail on the head above, I also find them a bit one-dimensional, and from what you say about the Intrax. I was happy 12 years ago, but as I've driven more modern cars with more modern suspension setups, I find what the Clubsports deliver now a bit limited. Without comparing specifics, it sounds similar to Ohlins Dual Flow Valve technology? But given Ohlins don't make Z4 M suspension....

Andy, I'm based in Guildford and have a set of intrax 1k2s fitted, albeit they're a few years since last serviced. You're welcome to have a poke around the car and come for a spin and feel what they're like if you want :)
 
its abit concerning that 4 of is in this thread have had to rebuild the rear dampers of the clubsports..... :cry:
 
Beedub said:
its abit concerning that 4 of is in this thread have had to rebuild the rear dampers of the clubsports..... :cry:
Mine have been fine randomly, it's running low too!
 
2 X rear CS dampers available from me. Swapped into a set of proper Penske coil overs for the rear.
 
RedUn said:
BMWZ4MC said:
RedUn said:
Mine have been fine randomly, it's running low too!
Obviously you aren’t driving it hard enough :D
:P :driving:

thanks for rubbing it in :rofl: mine arent even low.... lol. not much different from stock really probably around 20mm lower than stock.
in my opinion the landing on the country lane wasnt significant enough to cause a complete damper blow out. but of course KW didn't agree.and the track stuff has zero warranty .
 
It's weird how track stuff like CS has little warranty, while if you buy a porker, drive it from the showroom to the track and proceed to blow up the engine/car, it's completely warranted on track.. that I guess just goes to show you what a great product that is.

There a set of racing KWs for sale in your part of the world, but your looking at 5k pounds used..

Both will go for 600us. They are in awesome nick. Only 5 track days on these. Obviously comes with the whole hardware/springs etc..

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Replaced them with these custom jobbies..

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BMWZ4MC said:
sixspeed said:
…I'm a bit fed up with my KW Clubsports (I have to keep rebuilding the rears).....

Andy, how have the problems with your rear dampers manifested? As I mentioned a page or two back, one of my rear dampers started leaking at c 35k miles and I’m hoping that won’t become a recurring theme given your comments.

Well I had a rear leaking damper almost from new. It was so early in their life that KW actually gave me a replacement set (despite them not being "warrantied"). That has actually been useful, as I've had a spare set to send off and have rebuilt ready to go on.

I think from then they lasted quite some time tbf, but eventually that second set blew (probably after about 60k miles though - at a rough guess). I then sent both sets off for rebuilding (Cornering Force), and have gone through both pairs a second time as we speak. A few weeks ago I swapped over the rear shocks again for what is now the 5th innings.

They were fairly low before, and I've raised the suspension slightly at the last geo (where I discovered the shocks were blown again). So let's see if that makes any difference.
 
Ed Doe said:
Andy, I'm based in Guildford and have a set of intrax 1k2s fitted, albeit they're a few years since last serviced. You're welcome to have a poke around the car and come for a spin and feel what they're like if you want :)

Not far from me then, that would be great! Once the weather dries up again, I'll take you up on that. I'll drop you a PM.
 
Time for a long overdue update! Its been a pretty busy and expensive time for my Z4, but those of you following this thread will know, my car is very much a keeper and I’ve always been a believer in preventative maintenance… :thumbsup:

So, first up, fitting a carbon airbox - I’ve always loved these and the sound they make. I’ve always thought the idea of a ‘Z4 CSL’ was an opportunity missed by BMW and I’ve interpreted it hopefully pretty well with my car gaining bucket seats and big brakes.

Looking at the market it was clear to me that Karbonious made a super product and inspired by threads on here, I though I’d give fitting it a crack myself. If you take your time with several cups of tea, this is a pretty easy job and a great chance to learn a bit about your car. One thing to look out for is the joining rubber hoses between the airbox and the throttle bodies - these changed design part way through the S54 engine production so best to be sure which ones to get for your carbon airbox - I replaced all the rubbers hoses and retaining clips with new OEM.
The following pics give some idea of the process - job took me a morning to complete taking my time:

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All in all a lovely bit of kit!! :thumbsup:

I have installed a map from Randy at Epic motorsports which has worked really well out of the box.

And of course the noise is worth every single penny. Quiet a cruise, but when you let rip, it’s glorious!!!! :D
 
Next up - catalyst - after running the airbox for a while, I was a bit miffed when come MOT time, the car failed on emissions… Yikes! After quite a bit of digging wondering if the map was OK or other horror stories in my head or, it was found that one brick in the (original, 13 year old) catalyst was loose. Weighing up options, the OEM catalyst was one of the cheaper options so I went for that figuring it’ll last at least another 10 - 15 years:

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After this, I wanted a bit more exhaust noise to compliment the intake noise - I have used Supersprint exhausts before on other BMWs and have been really impressed with them so bought an X pipe and rear boxes to make the rear end of the car look a bit tougher. As always, the quality is superb and no droning or excess noise inside but a deeper burble outside, especially at idle - a really nice improvement over the standard system which is pretty decent anyway - shiny pipes below!!

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At this stage I know I’m annoying the purists but hopefully some of you appreciate why I’m doing this…! :poke:
 
ive got 100 CELL race cats.... fails the MOT every single year, such a pain in the ass :cry:

Love the new pipes! youve really created something special here mikey..... like myself weve invested so heavily, and created something such high performance i now find i can afford its replacement and im stuck here unless i want to spend 100k plus!!!
 
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