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New! BMW E30 "M42" Competition Motor Mounts

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  • New! BMW E30 "M42" Competition Motor Mounts

    We make lots of BMW motor and trans mounts and now you can choose Vorshlag Competition Motor Mounts for the E30 M42.



    We have custom made a number of these over the years for the E30 M42, including several iterations for our own 1991 E30 M42 that we raced in SCCA autocrossing (STS) as well as NASA TT/HPDE track use. We made these poly mounts for the engine and transmission because the stock mounts were SO WEAK. The transmission mounts once stretched under hard cornering, allowing the transmission to shift sideways by almost an inch, causing the shifter to bind up which resulted in a high rpm "money shift". Luckily, only the clutch exploded...


    Left: Stretched OEM rubber mounts after the "money shift" incident. Right: exploded clutch

    The difference in throttle response and especially shift feel after going from OEM rubber to real poly engine + trans mounts in these cars is dramatic. The M42 motor isn't known for its smoothness (compared to the BMW 6 cylinder) so there will be more vibrations transmitted into the cabin with racing style poly mounts, but the payoff is substantial for racers or dual purpose street/race E30s. We went through a few variations and durometer polyurethane inserts and came up with these 70A durometer "thru-bolt" style M42 mounts. Again, there is some added NVH with this poly insert (if there wasn't any the mounts wouldn't be stiff enough to improve shift feel so much), but much less than the solid Nylon or firmer 95A and 85A inserts we tested previously.



    We have made a number of these M42 motor mounts to order but have sold enough now to warrant a product entry on our website. These are not volume sellers like our other BMW mounts, so we still only make them to order, which is why the cost more and take a few days before they ship (I have make each set myself, and its a pain).


    Left: The 70A mounts in our E30 M42. Right: The 80A poly trans mounts on the same car

    Cheers,
    Terry Fair - www.vorshlag.com
    2018 GT / S550 Dev + 2013 FR-S / 86 Dev + 2011 GT / S197 Dev + C4 Corvette Dev
    EVO X Dev + 2007 Z06 / C6 Dev + BMW E46 Dev + C5 Corvette Dev
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