Crankshaft Dampers

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 on the street says the OEM units do not fail, but we have dozens of clients who prove otherwise. Some racers would bring a few spare units to each event -not any more. Simply fitting their engines with the VAC damper solved their issue and restored confidence in the powertrain.

ATI Performance Products, a leader in harmonic dampers has developed a VAC exclusive damper for the S50B30 EURO engine.

These VAC exclusive 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 VAC 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.

Part Fits Parts in Kit
VAC-HPCD-S50E-STD S50B30 Euro 849.95 ATI S50 Euro Damper with Trigger
200 VAC Overdrive Crank Pulley
Total $1049.95 Instructions
VAC-HPCD-S50E-UD-OE S50B30 Euro 849.95 ATI S50 Euro Damper with Trigger
150 VAC Standard Crank Pulley with AC
Total $999.95 Instructions
VAC-HPCD-S50E-UD S50B30 Euro 849.95 ATI S50 Euro Damper with Trigger
250 VAC Underdrive Crank Pulley
Total $1099.95 (6) x M8-1.25x25mm SHCS
(6) x M8 Washers