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Suspension

Discussion in 'Z4 Roadster & Coupé' started by Grimstead, Apr 14, 2013.

  1. Grimstead

    Grimstead Dedicated Member

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    Got a 2003 3.0i, anyone got any advice for suspension upgrade?
     
  2. GazHyde

    GazHyde The Gaz Monkey
    Staff Member Administrator Global Moderator British Zeds

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    When you mean upgrade... Lower? Same height but better?

    The Eibach springs are meant to be a great upgrade but will lower the car by about 30mm, unless you have the factory lowered in which case 15mm.

    My Z4 has the factory lowered suspension (15mm) and it scuffs on some of the local speed bumps. I also beached the car on a raised manhole cover at my local petrol station. Oh the sound... and the looks I got :(

    Always found it handle really well, even with one of the rears snapped. Really didn't fancy losing another 15mm.
     
  3. Grimstead

    Grimstead Dedicated Member

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    Yeah, I was thinking coilovers, so you still got the eibachs on it?
     
  4. Grimstead

    Grimstead Dedicated Member

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    Maybe I should ditch the idea, I ground out the other day so lower is maybe not the way forward, maybe stiffer anti roll bars?
     
  5. GazHyde

    GazHyde The Gaz Monkey
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    May have confused... Mine is factory lowered 15mm m-sport standard fit. Didn't want to go any lower!
     
  6. Grimstead

    Grimstead Dedicated Member

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    Oh right, so is it possibly to get my sport ones? If mine hasn't already got them :confused:
     
  7. GazHyde

    GazHyde The Gaz Monkey
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    Hi,

    Just checked your car details on your profile and it says 2003 3.0i. That should be the 15mm factory lowered m-sport fitted as standard. IIRC it was fitted to all the 3.0i models at the start of production.

    Cheers, Gary
     
  8. Grimstead

    Grimstead Dedicated Member

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    Ok, you come away from runflats yet?
     
  9. GazHyde

    GazHyde The Gaz Monkey
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    Yes, at the first opportunity! Put Falken 452's all round, and it was a different car. Bought the 4 for the cost of replacing just the 2 RFs on the rear.
     
  10. Grimstead

    Grimstead Dedicated Member

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    does it get rid of the crashy ride? i heard that was the problem with them.
     
  11. GazHyde

    GazHyde The Gaz Monkey
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    Sorry for the delay in responding. Yes they do remove the crashy ride, but only to a certain extent. Don't forget you are still riding round on 40 profile tyres (35 rear), but the ride is much improved. Not spoken to anyone yet who has changed that regretted doing so.

    My other issue with run-flats is that I had a puncture on a rear, and the car drove pretty well. So much so I didn't notice it was punctured. Was only when I gave it the beans off a roundabout that the back end squirelled a bit and the traction control came on. Tyre looked ok from visual inspection, was only when I put a guage on it that I knew it was way down on pressure.

    Result is that it destroyed the tyre side wall, and it possibly could have been repaired (yes I know they say you can't). This was when I started looking at the standard tyres.

    Bought myself a BMW tyre inflation kit (pump & tyre goo) just in case the worst should happen! :nailbiting:
     
  12. Grimstead

    Grimstead Dedicated Member

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    Sounds like that's the way to go. Cheers gary
     

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