| Atomic high mass crank dampeners are designed to absorb torsional vibrations of the crankshaft/rotating mass of the engine. This increases substantially the life of engine components such as crankshafts, bearings and drive systems whilst also contributing to smoother running of the engine. |
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The term "harmonic balancer" has been adopted by the automotive industry to describe vibration dampeners that attach to the snout of crankshafts; this term is misleading and inaccurate. They do not "balance" any engine harmonics - they merely follow Newtons Third Law of Motion and react to the torsional vibration created by the motion of conrods/pistons acting upon the crankshaft and absorb some of these vibrations. This is taken up by the movement of the outer ring of the dampener in an equal and opposite reaction to this torsional movement. The more efficient the operation of the dampener, the more damaging torsional vibrations are absorbed.
Why Atomic balancers are better.
The construction of a standard type dampener is usually an outer cast iron ring press fitted to a keyed hub, with a rubber sleeve wedged between the two pieces. The unit is then lightly press-fitted to the crankshaft and secured in place with a retaining bolt/washer assembly, however we do things a little differently......
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Atomic High Mass dampeners differ markedly from the standard style of dampener in the following ways:
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CNC machined steel outer ring with greater rotating mass than a standard balancer to absorb more damaging torsional vibrations
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CNC machined steel inner hub for a precision fit
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Lighter overall weight by up to 500 grams provides quicker engine acceleration and deceleration
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Exceeds ANDRA requirements
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Increased engine life
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Smoother engine operation
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Exclusive elastometric vulcanise bonding process of inner and outer pieces for a perfect fit, concentric operation and improved transmission of damaging torsional vibration
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Flanged outer ring to eliminate 'walk" off the front or the rear of the hub
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Precision balanced
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Lifetime warranty on the entire balancer - even for racing use! |
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Atomic balancers are particularly effective in absorbing torsional vibration in Ford BA XR6-T engines, increasing the life of oil pumps, bearings and crankshafts.
Please note: It is mandatory to fit an ANRDA approved harmonic balancer such as the Atomic balancer if your vehicle runs quicker than 11.99 seconds in the quarter mile. This is due to the high risk of explosion of the standard balancer due to centripital forces acting upon the cast iron outer ring. |
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Atomic High Mass harmonic balancers are available for the following engines: |
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Make |
Model |
Part # | |
Ford 6 cyl |
BA 4.0L 6 cyl |
306100 | |
Ford V8 |
BA 5.4L Boss V8 |
308100 | |
Holden V8 |
LS-1 Chevrolet |
408100 | |
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Nissan 6 cyl |
RB26 |
356101 | |
Nissan 6 cyl |
RB30 |
356102 | |
Nissan 4 cyl |
SR20 |
354100 | |
Subaru 4 cyl |
WRX EJ-20 EJ-25 |
554100 | |
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606100 | |
Toyota 6 cyl |
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606101 | | |
