Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1

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    ST Coilover Kit BMW E46 Sedan Coupe Convertible Sport Wagon

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  2. #2
    Join Date
    Feb 2014
    Location
    Kitchener, ON
    Posts
    6,034
    ray... do you know what the spring rates are?

    peter
    peter

    2004 330i ZHP
    2005 330iT ZHP
    2010 328iT M Sport

  3. #3
    Quote Originally Posted by slater View Post
    ray... do you know what the spring rates are?

    peter
    it shows this:

    Rear Spring Rate: Progressive
    Rear Lowering: 1.2in-2.0in (30-50mm)
    Front Lowering: 1.2in-2.8in (30-70mm)
    Front Spring Rate: 345lbs/in

  4. #4
    Join Date
    Feb 2014
    Location
    Kitchener, ON
    Posts
    6,034
    Quote Originally Posted by Smilez View Post
    it shows this:

    Rear Spring Rate: Progressive
    Rear Lowering: 1.2in-2.0in (30-50mm)
    Front Lowering: 1.2in-2.8in (30-70mm)
    Front Spring Rate: 345lbs/in
    thanks. it would be nice if you could get the progressive rates (softest and stiffest) for the rears - this was my only beef with them on my B5 A4 Avant - the rear was too soft.

    peter
    peter

    2004 330i ZHP
    2005 330iT ZHP
    2010 328iT M Sport

  5. #5
    Ill contact ST direct see if they can give me exact numbers :D

  6. #6
    Join Date
    Feb 2014
    Location
    Kitchener, ON
    Posts
    6,034
    thanks ray!

    peter
    peter

    2004 330i ZHP
    2005 330iT ZHP
    2010 328iT M Sport

  7. #7
    Quote Originally Posted by slater View Post
    thanks ray!

    peter
    "
    Thank you for contacting ST Suspensions, the 90222 kit holds a front rate of 345 lbs/in while the rear spring is progressive. Unfortunately I do not have a rate to supply for the rear spring as it does not hold a constant rate.

    If you have any more questions please let me know."

    You would think they would least have a min and max

  8. #8
    Join Date
    Feb 2014
    Location
    Kitchener, ON
    Posts
    6,034
    yes, even a progressive-rate spring has a minimum and maximum!

    thanks for trying. i might think about replacing the ST rear springs with a hyperco or swift spring.

    peter
    peter

    2004 330i ZHP
    2005 330iT ZHP
    2010 328iT M Sport

  9. #9
    swift from BC right? Well le me know i can order those.

  10. #10
    Join Date
    Feb 2014
    Location
    Kitchener, ON
    Posts
    6,034
    Quote Originally Posted by Smilez View Post
    swift from BC right? Well le me know i can order those.
    well, swift is its own company, i think BC is offering their springs as an option on their products. they supposedly make really good springs - very light, too.

    hyperco is nice as well - they guarantee their springs to be within 2% of their advertised spring rate, which is really good. i think eibach states 10% for their ERS line (10% is a lot!).

    peter
    peter

    2004 330i ZHP
    2005 330iT ZHP
    2010 328iT M Sport

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