Is it the mechanical part that's failed? If so read post #16 in this thread
https://z4-forum.com/threads/dsc-recoding-soft-brake-pedal-issue-resolved.135378/
You need to find a pump from a 3 series with part number 6790147 and then swap the mechanical parts over, if you just swap the...
Helper springs don't affect the ride; they should be coil-bound when the weight of the car is on them. They just make sure the spring doesn't rattle around or come loose on full droop
Completely mate, no idea if they will last, but hopefully they will.
I'm taking the fact that they weigh exactly the same (shown in the video) and have the same dimensions as the AP CP9200 they are based upon as a good thing. I'm defo no expert, but perhaps that means they are made of similar...
Strap in, it's a long one about an Alibaba BBK i bought, fitted and tested!
I posted this in the facebook Z4 Track Day Group but thought it might be of interest here.
Before I start, if these are of interest to you, please go in with eyes wide open. I was prepared for them not to work, and...
Whoops, looks like I completely forgot, its been on for ages now and has completed 4 trackdays with the 7600rpm limit.
I need to update the build thread anyway as there have been quite a few changes recently.
Thanks for reminding me (y)
Already had the 3Sim on the car from the factory, but wanted more top-end power and a more special feeling engine.
Happy to share the contct details, he's based in Portugal, I'll send you hos whatsapp details
I went from 3.46 to 3.73 FD and it's great. Woke the car up. Paired with a N54 intake manifold and 7600rpm rev limit the car is totally different.
My LSD is a fully rebuilt and upgraded to 6 clutches from an E36 BMW, so an OEM unit. It was built and supplied in a case with a 3.73 FD for about...