Difference between Tein Street Advance Z and Tein Flex Z Coilovers?

Discussion in 'Technical' started by SuperZ, Jan 7, 2018.

  1. SuperZ

    SuperZ Resident Z lunatic

    Hi

    Pro's and Con's between the Flex Z and Street Advance Z TEIN coilovers?

    My understanding is that the flex Z have a full length thread so that adjustments can be made from the bottom but also have heard others advise not to go flex for street as they are too harsh, (despite the same spring rates)

    So - Should I go Flex Z or Street Advance ?



    Cheers
    Jamie
     

    Attached Files:

  2. rob260

    rob260 Administrator Staff Member

    Flex include new upper mounts, Street require you to swap the rubber tops off your old shocks OR to purchase new ones separately.

    There is no reason for the ride quality to be diminished with flex compared to Street. Spring rates are the same and both utilise a rubber bush type upper mount.
     
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  3. Hellsheep

    Hellsheep Administrator Staff Member

    I used the flex Z and was dailying it for a while, definitely a bit more stiff than other coils from other manufactures, but not unbearable unless you have really bad roads. I really enjoyed driving with flex Z's, I'll probably buy another set on my new zed when these wear out
     
  4. JEDI-77

    JEDI-77 Jedi Master

    In Victoria at least, the Street Advance are road legal. The Flex are not. Something about the way they are mounted, I can't quite remember.
     
  5. zx299

    zx299 Well-Known Member

    I think you'll find the Flex are not legal because they use a pillowball top mount. For street work you are better off sticking with something that uses the oem mounts !!!
     
  6. rob260

    rob260 Administrator Staff Member

    The Flex Z coil overs for Z32 have a reinforced rubber upper mount, just like the OEM mount.

    The superseded type flex had a pillowball upper mount.

    Issues of compliance revolve around the threaded adjustable clevis clip that is found on the flex z. Any coil over thathas independent ride height adjustment will have a threaded body and adjustable lower clevis.
     
    Last edited: Jan 26, 2018
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  7. SuperZ

    SuperZ Resident Z lunatic

    My understanding was that the pillowball mount was/is an optional extra (for those wishing to adjust camber via the flex Z)
     
  8. rob260

    rob260 Administrator Staff Member

    No. You cannot adjust camber on a 300zx via the strut tops.
     
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  9. SuperZ

    SuperZ Resident Z lunatic

  10. SuperZ

    SuperZ Resident Z lunatic

    Apparently the new versions have replaceable tubes ...
     
  11. rob260

    rob260 Administrator Staff Member

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  12. Fists

    Fists Well-Known Member

    Something's lost in translation there, camber by strut top adjustment is only for macpherson strut type suspension, Z32 (and R32) are double wishbone/A-arm or some similar almost the same but actually a specific variant. Camber adjustment with a double arm set up is only achievable by adjusting the length of one of the arms.
     
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  13. Hellsheep

    Hellsheep Administrator Staff Member

    Sorry I meant because the new zed I bought has different coilovers from another manufacturer. I'll switch to flex Z's when the current set from the other manufacturer wear out.
     

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