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E9x M3 steering rack swap

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    #1

    E9x M3 steering rack swap

    Hello gents, has anyone heard of an E9x M3 steering rack swapped onto an E46 M3 before? I reckon some modifications/retrofitting of some E9x parts aside from the rack itself will be necessary but I’m confident that a 2.4 lock-to-lock ratio from the E9x would completely change the feel of our cars coming from our 3 turn lock-to-lock ratio. Please point me in the right direction.
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    #2
    It's a bit more complicated than that, just because the E9X rack is 2.4 lock-to-lock on an e92 doesn't mean it would be the same on the e46 - you'd have to do some math. I'm also pretty sure the e92m3 has a variable rate rack as well.

    The Z3 and Z4M racks are both 2.7 lock to lock and are direct bolt-on. You can also run a SLR speed e46 tie rod which will quicken up the steering, but give you more angle at the same time.
    Phoenix Yellow e46m3 Build Thread
    Orient Blue E46 330i ZHP k24/dct/turbo Build Thread

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      #3
      I appreciate the insight, the upgraded tie rod combo + Z rack combo could be a hit.

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        #4
        Originally posted by 1spool View Post
        I appreciate the insight, the upgraded tie rod combo + Z rack combo could be a hit.
        Skip all of that and get a black tag rack from LPSR.

        LHD BLACK TAG BMW E46 QUICK STEERING RACK | lpsr
        https://www.steeringlpsr.com/product-page/black-label-black-tag-lhd
        WE ALSO SELL RHD VERSION click hereBRAND NEW BMW E46 LHD BLACK TAG 2.5 TURNS LOCK TO LOCK Due to the incredible success of our Black Label RHD steering rack we have received an overwhelming amount of inquiries from people all over the world asking for a left-hand drive version. We have listened to our customers and decided to help them out! (1) What exactly is our BLACK LABEL 2.5 TURNS SUPER QUICK RACK? -Have you ever heard that the E46 ZHP yellow tag is the best rack? Or is the E46 CSL blue label even better? Purple tag? Quick Z3 rack? Guess what? - our BLACK LABEL beats all of them! SOME TECHNICAL INFO NOW: - Our E46 Black Label 2.5 turns steering rack HAS ALMOST THE SAME parameters as ALL other standard E46 racks. It means: housing (shell), ports orientation, pinion length, pinion angle, pinion splines, threads, rod OD, mounting points, rod length and stroke ARE EXACTLY THE SAME as E46 purple, yellow, silver, blue and green tag. The only difference is obviously the number of turns2.5 lock to lock is a GAME CHANGER. It makes it the QUICKEST rack that you can possibly install in your BMW without heavy modifications implemented to your vehicle. Our E46 BLACK LABEL is incredibly nimble, precise and most importantly not twitchy. Even at high speeds, the steering is very predictable and easy to control. It is a life changer for drifters, racers and everyday drivers!!! *BMW E46 - It is a direct replacement / swap for every LHD BMW E46. *BMW E36 - It is a direct replacement for every LHD BMW E36 (please note you need to use vented inner tie rods! Cannot reuse your E36 inner ones.) *BMW E30 - It is a standard conversion procedure for every LHD BMW E30 as with installing any other E46 steering rack. If you have already installed the E46 steering rack into your E30 - it will be a direct and simple swap. No more mods and hassle required.Important note for E46 daily drivers: If your E46 is equipped with DSC (traction control), installing a quick steering rack may cause the traction control to activate with sharp or quick steering inputs. The simplest solution is to switch the traction control off. If you'd prefer to keep it on, another option is to reprogram the DSC module to the E46 M3 CSL settings. This can significantly reduce how often the system reacts unnecessarily. Let us know if you have any questions or need help with this setup.Important note for E46 M3 owners only: Due to the design of the factory power steering pressure hose (from the pump to the rack), E46 M3 models may sometimes experience slight vibrations or a pulsing sensation in the steering. This is not a fault with the steering rack, but a result of the weaker hose design specific to the M3. If you experience this and would like a solution, feel free to contact us — we offer specially designed replacement hoses that effectively resolve this rare issue. Please note: this situation only applies to the E46 M3 and does not affect any other E46 models. Product was developed in accordance with Australian Standards. All the work, design, material, specs etc are strictly discussed and approved by Australian Engineer. - This is a high performance product and because of a heavy abusive nature like drifting, racing etc - we offer a 12 months warranty and as always - an endless after sales support. If you live in Australia every steering modification should be discussed / approved by an Australian Engineer. If you live overseas it is your responsibility to know the laws and legislations in your own country. You make all modifications at your own risk and you are liable for any damages you might cause yourself. This product should be installed by professionals.

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