Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1
    Join Date
    Sep 2021
    Location
    Virginia
    Posts
    38

    Lukewarm suspension - seeking feedback

    As is, I reckon the ZHP has a balanced ride - not too soft, not too firm.

    My father says it is not comfortable, but he drives a Toyota Avalon, and is in his late 70s.

    Nonetheless, I want it to:
    -Be more comfortable
    -Keep or improve its performance
    -Under steer less

    Here is what I have in mind after I did some research... Please let me know if any of these choices are no good, or here are better ideas.

    1-Eibach Pro-kit springs

    I had these on my Audi TT MK1 and paired them with Koni FSD - later Koni Active. The ride comfort improved, and so did the performance when pushed. Plus, at 186k miles, and 16 years, I wonder if my stock springs still got their mojo.

    2-Koni Active Dampers

    In theory these have better comfort and performance than the Bilstein B4 on the car now.

    3-Eibach sway bar kit.

    These are tuned to work with the pro-kit as I understand, and will take care of the understeer.

    4-Go for Apex EC-7R

    That should shave 7-9 pounds / corner. Less unsprung weight = good.

    Front: 18x8.5" ET35 stay with 225/40-18.
    If there is still understeer, maybe 235/40/18 or even 245/35/18 later can do.

    Rear: 18x9" ET42 stay with 255/35-18.

    5-Go for 2 piece front rotors. Less unsprung weight = good

    6-Delete sunroof, and get CF hood and trunk. Shave as much as 140LBs.

    Feedback?

  2. #2
    Join Date
    Dec 2019
    Location
    Raleigh, NC
    Posts
    879
    Check out my guide, sounds like what you are looking for: http://www.zhpmafia.com/forums/showt...M-SACHS-Setup)
    330i Base | Mysticblau | Slicktop | 6MT

  3. #3
    Join Date
    Mar 2011
    Location
    Independence KY
    Posts
    2,832
    what you suggested for suspension sounds like a good selection, upgraded sway bars is essential too. I don't have any experience with apex wheels but is obviously a common choice in BMW circles.
    2005 BMW 330i ZHP - BMWP brakes/intake/strut bar/shifter, Coby wraps interior, BBS CHs, Eagle Eye LED tails, LED fog lights, GC coilovers, Sprint Booster/sport button mod, 4.5 LCM w/ programming, Xtrons 9inch HU, BSW stg1, dynamat, M3 sedan dead pedal, oCarbon CF interior trim, CF seat backs, 2x2 CF MTECH2 diffuser, CF cabin filter cover



  4. #4
    Join Date
    Sep 2021
    Location
    Virginia
    Posts
    38
    Great stuff, guys. Getting this project going. Starting with the sunroof delete, then the CF hood and trunk.
    Springs, dampers, and sway bars next.
    Finally the wheels and brakes.

    Will post pics of progress.

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