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All Romac Harmonic Balancers are SFI 18.1 spec approved. These are offered in four styles. All 360 degreed and fully encapsulated outer rings via a shoulder at the rear and a serviceable circlip mounted at the front of the outer ring. All Romac Balancers are Individually Consecutively Marked, fully serviceable and need no special bonding with the elastomer. Balancers can be ordered with undersize bores to suit Scat and Eagle crank snouts; simply indicate this by adding the undersize to the P/N when ordering. To be sure of the bore size you need you should measure this prior to purchasing. A list is provided in our catalogue for standard factory bore diameters.
1. Sports Series:
Steel Inner Hub / Steel Outer Ring, for Mild Street, Strip performance engines that offers increased harmonic absorption over stock units. 360 degreed outer rings. Similar weight to factory cast units but with the safety of an encapsulated outer ring. RPM range 8500. Available in External or Neutral balance. Weight from 3 to 5kg's
2. Performance Series:
Steel Inner Hub / Alloy Outer Ring, for very Hi Performance Street, Marine or Race engines requiring the added insurance of a Steel Inner Hub for strength where dry sump pumps etc. may be installed. Romac recommend this style of balancer over all other balancers we produce due to its flexibility and endurance characteristics. Weight savings of approximately 1/3 less can be achieved with this style of balancer over our steel units and factory units. Available in External or Neutral balance. RPM range 10,000. Weight from 1.8 to 3.5kg's
3. Pro Series:
Alloy Inner Hub / Alloy Outer Ring, for Marine or all out Drag Racing or Circuit Racing etc. where nothing is required to be run from the inner hub or outer ring especially dry sump pumps. Extreme savings as little as 1kg total balancer weight is possible. These balancers are particularly important to tight cornered tracks where engine revs are low and instant revs are required to accelerate out of tight turns. Neutral Balance Only. RPM range 10,000. Most alloy balancers come with a larger seal boss diameter and seal supplied if applicable.
4. Blown or Supercharged Balancers.
4340 grade Steel Inner Hub / Alloy Outer Ring, for Street, Strip or Marine applications with dual keyways. STD 3/16" and 1/4" 180 degrees opposite. Larger seal area with special seal included in the package. Available in External or Neutral Balance configurations. Weight saving applicable to our Steel/Alloy units. Front inner hub face can be Standard Factory layout or Chrysler 6 Bolt pattern with a 2" inch register for standard blower pulleys. Our standard front face layout is 6 Bolt pattern with 2" register unless otherwise told. RPM range 10,000.