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Spring rates for H&R’s springs

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    Spring rates for H&R’s springs

    Anyone know what the rates are? The front spring feels like it’s slamming down on the bump stomps through transitions. Quite possible the worse feeling front spring I’ve ever felt. It’s been some time since I ran these and I had forgot how awful it feels up there.

    Trying to decide wether to just swap DINAN’s on or order an eibach front spring in the correct height/rate.

    #2
    I think it's more the -1.2" drop than the rate. Stock is 143lb/in. Eibach is 158lb, but only a .6" drop iirc
    DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
    /// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
    More info: https://nam3forum.com/forums/forum/m...os-supersprint

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      #3
      They dont release spring rates at least when I asked them ,I think it has to do with them being progressive springs.

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        #4
        Not sure if these are the same?

        https://nam3forum.com/forums/forum/m...r-spring-rates

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          #5
          Def not 400 in the rear unless TCK means it acts like 400 and is really a 7xxlb due to divorced setup. Might be 200lb up front since it's a big drop. Should be more like 300.
          Last edited by Tbonem3; 08-20-2021, 11:47 AM.
          DD: /// 2011.5 Jerez/bamboo E90 M3 · DCT · Slicktop · Instagram
          /// 2004 Silvergrey M3 · Coupe · 6spd · Slicktop · zero options
          More info: https://nam3forum.com/forums/forum/m...os-supersprint

          Comment


            #6
            Don’t know what the rates are, but they’re terrible. The only viable springs (non coilover) for this car are Eibach and Dinan.

            2005 IR/IR M3 Coupe
            2012 LMB/Black 128i
            2008 Black/Black M5 Sedan

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              #7
              When I was looking at oem+ suspension

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                #8
                Dinan..
                .F 175 lb/in
                .R 477 lb/in

                Needs more confirmation though.

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