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ATI HARMONIC DAMPER (BMW M50/M52/M54/S50US/S52US)

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Producent: ATI


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    Isolate harmonics before they can destroy your engine.

    If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive.

    FACT: harmonics CAN destroy these motors despite their ideal 'inline six' balance. Popular word says the OEM units do not fail, an in many cases failures are in fact uncommon... However we have dozens of clients who have managed to prove otherwise as engines are modified further-away from standard configurations. Even some racers were bringing spare units to each event -not any more.

    Fitting their engine with an ATI damper solved their issues and restored confidence in the powertrain.

    Why do some racers have issues while others don't? Lightweight components such as performance flywheels, or knife edged cranks alter the resonant (natural) frequency(s) of the rotating assembly and can therefore cause failures during high RPM use. Since nearly no two modified engines are exactly alike, this can strike different customers at different times.

    A leader in harmonic dampers, ATI Performance Products have developed exclusives damper for a growing list of BMW engines. These are exclusively distributed by VAC Motorsports. ATI dampers eliminate nearly all unstable crankshaft harmonic vibration which allows the engine to produce more horsepower and torque, maintain reliability and ensure internal engine wear in minimized.

    When used with our included in house made pulley, this is a direct bolt on solution. Available in overdrive, underdrive (for use with standard size pulleys) or standard diameter (for use with under driven accessories, or supercharged cars). Also, configurations available for use with our dry sump kits. This damper has a 7" outer diameter and it includes OEM style timing alignment tabs.

    • VAC's ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition
    • Made in USA
    • Eliminate problems with inline 6s fit with lightweight clutch and flywheel assemblies
    • Control destructive harmonic forces
    • Reduces instances of bearing wear, accessory failure and oil pump failure
    • Includes lightweight VAC Billet Crankshaft Pulley

    ATI Performance Products, Inc. is located in Baltimore, MD, and specializes in producing and maintaining high performance products for street and strip applications. Over the years ATI has earned a reputation for its cutting edge technology, attention to detail and rigorous testing under race conditions. We are proud to have them as an exclusive partner in these BMW applications.

    Non-Trigger Ring Kit (OBD2) includes:

    • Damper
    • Pulley, standard
    • Mounting and installation hardware

    Trigger Ring option for OBD1 systems, adds a trigger wheel to the Non-Trigger kit listed above.

    VAC Tech Notes:

    • For Street/Track cars with Air Conditioning, the Additional A/C Pulley Option is REQUIRED as the OE A/C pulley is not compatible. The additional mounting and installation hardware is also included.

    E36 - 325i, 328i, M3 US - M50 ('91-'95), M52 ('96-'99), S50US, S52US ('95-'99)
    E36/7 - Z3 - S52 ('97 - July '00)
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