Brand: ATI Performance Products
Manufacturer's Part Number: ATI917123E
Part Type: Harmonic Balancers
Product Line: ATI Super Damper Supercharged Series Harmonic Balancers
Automotive Fittings Part Number: ATI-917123E
UPC: 800157030888
Engine Balance: Internal
SFI Rating: SFI 18.1
Degree Markings: Yes
Degree Marking Range: 360
Outside Diameter (in.): 7.074
Keyway Quantity: Two
Harmonic Balancer Material: Steel
Harmonic Balancer Construction: Elastomer
Harmonic Balancer Color: Black zinc chromate
Mounting Hardware Included: No
Quantity: Sold individually.
Notes: Blower drive damper for A-Fuel dragster class, Two 0.250 in. keyways, 1 @ TDC. Driver's side timing. Blower drive with 3/8 in. pulley bolts. 3-ring design steel shell weight is 8.75 lbs. Steel hub average weight is 2.4 lbs. 0.600 in. counterbore.
Description:
These Supercharged series dampers place the powerful protection of ATI Super Damper inside of the crankshaft blower pulley. Available in 66 to 77-tooth 8mm pitch, and 40 to 51-tooth 14mm pitch, these balancers eliminate torsional crankshaft vibrations and feature dual-keyway hubs. These balancers exceed SFI 18.1 specs, have laser-engraved 360 degree timing marks, and are finished in a black zinc chromate. Numerous pulley offsets are available to keep the blower drive as close to the engine as possible, reducing the bending moment to the crankshaft nose.