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h&R coil spring pads info needed??

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  • h&R coil spring pads info needed??

    hi guys
    preparing parts needed for spring .
    I plan on installing H&R sport springs . I already have sport bilsteins .
    what pads do I need for the front and back <thickness>? are these different than stock ones?

  • #2
    Run them with stock pads until they settle. Then if you find yourself happy/unhappy with ride height you can go thicker, thinner, or add e90 drop hats in the front.

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    • #3
      These will be used most probably and really don’t want to take the front shocks apart twice

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      • #4
        Originally posted by Westopher View Post
        Run them with stock pads until they settle. Then if you find yourself happy/unhappy with ride height you can go thicker, thinner, or add e90 drop hats in the front.
        Data point. In all the suspensions I have put on cars, I have never had anything "settle".

        Drop hats are a bad way to lower a car. They significantly reduce the available shock travel which is already compromised by shorter springs.

        I used 15mm pads in rear and 3mm pads in front for the H&R sports on two cars. Just right. Those are not the stock thickness.


        75 M2 Zinno
        88 M3 Henna

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        • #5
          For thé front it’s the upper pad to change to 3mm
          and the rear it’s the lower or upper ? Bmw does not list 15mm from what I saw
          thanks

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          • #6
            Yes. Rear lower.

            They are bmw parts from other BMWs. Go to the Bimmerworld website for detail.
            75 M2 Zinno
            88 M3 Henna

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            • #7
              An only find upper rear in 15mm , can’t find lowers in different sizes .

              https://www.bimmerworld.com/Suspensi...pring-Pad.html

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              • mlytle
                mlytle commented
                Editing a comment
                That is it. Lower.


            • #8
              Ahh ok great.
              Is this a mistake it says lower for this part ?

              https://www.bimmerworld.com/Suspensi...E30-E36ti.html

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              • mlytle
                mlytle commented
                Editing a comment
                Can be used in either place.

            • #9
              while you have the front suspension apart, make sure those front billy's have the bumpstops cut or you will be riding on them.
              75 M2 Zinno
              88 M3 Henna

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              • #10
                Thanks for being so helpful do How much should I cut ?number 5?

                http://bmwfans.info/parts-catalog/E3...ock_absorber_2

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                • #11
                  post #24 in this thread
                  https://s14net.vbulletin.net/forum/s...d-shock-to-buy

                  #5 is not used with billys. the bump stop is internal to the damper.
                  75 M2 Zinno
                  88 M3 Henna

                  Comment


                  • #12
                    Originally posted by mlytle View Post

                    Data point. In all the suspensions I have put on cars, I have never had anything "settle".

                    Drop hats are a bad way to lower a car. They significantly reduce the available shock travel which is already compromised by shorter springs.

                    I used 15mm pads in rear and 3mm pads in front for the H&R sports on two cars. Just right. Those are not the stock thickness.

                    Good advice. I wouldn't really advocate for drop hats either, just throwing it out there as some people care more about function than form. Is your car in the photo on H&R sports? Also, is 3mm pads less than stock, 15mm larger? I like the ride height of your car more than mine with the sports. My car has a little more rear drop it seems and I don't love the saggy diaper look it has a bit of.

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                    • mlytle
                      mlytle commented
                      Editing a comment
                      Yes...h&r sports. Stock front is 7.5mm I think. Stock rear are 5 or 10 iirc. I played with several sizes of spring pads on both ends to get it where it sits. Yes, ended up thicker in rear and thinner in front.

                      I am a function over form type. Mine is 90% street car. Lower in front got too close to curbs, lower in rear caused too much negative camber. I apparently don't get the "no gap" concept! :-)

                  • #13
                    for comparison, this is pic of my car on the h&r's with the original stock thickness pads. looks like yours...nose high, tail low.


                    75 M2 Zinno
                    88 M3 Henna

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                    • #14
                      I think when I feel like lighting some money on fire I will pick up some KWs so I can dial it in, but definitely some larger pads in rear will help me out until that day comes. Thanks for the clarification.

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                      • mlytle
                        mlytle commented
                        Editing a comment
                        pads to change the rear are cheap and easy.......:-)

                    • #15
                      sorry still confused , I am ordering the parts for he front pads in 3mm .
                      the upper and the lower ones say 3mm on both. ,do I order the upper or lower ones in 3 mm?
                      31331128523 Spring pad upper 3MM. or. 31331124322 Spring pad lower 3MM


                      thanks

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