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High quality Australia Made Romac Product - All Romac Harmonic Balancers are SFI 18.1 spec approved. All dampers are 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

GOLD Sports Series: Steel inner hub with aluminum outer ring for street/strip performance engines that offers increased harmonic absorption over stock units. Features a 360 degreed outer ring. Similar weight to factory cast units but with the safety of an encapsulated outer ring.

RPM range 8500.
Bore Minimum Diameter : 1.5305"
Bore Maximum Diameter : 1.5310"
Standard Seal Diameter : 2.1850 "
Weight : 2.60 KG

ROMAC PREMIUM BALANCERS

All Romac Harmonic Balancers are SFI 18.1 spec approved. they are all individually “Consecutively Marked”, fully serviceable and need no special bonding with the elastomer.
 

Performance Series

Steel Inner Hub (K1045 Carbon steel) / Steel Outer Ring (K1045 Carbon Steel), for Mild Street, Strip performance engines that offer increased harmonic absorption over stock units. Most have 360 degreed outer rings and are similar in weight to factory cast units but with the safety of an encapsulated outer ring. They are available in External or Neutral balance.They weigh from 3kg to 5kg. The RPM ranges up to 8500.

Anodised Pro Series

Steel Inner Hub (K1045 Carbon steel) / Alloy Outer Ring (2017A Aluminium Hollow T4510) for very High 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/running from balancer.

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. They are available in External or Neutral balance. They weigh from 1.8kg to 3.5kg. The RPM ranges to 10,000.

Anodised Pro Series Blown/Supercharged Balancer

Steel Inner Hub (4340 Alloy/Steel) / Alloy Outer Ring ( 2017A Aluminium Hollow T4510), for Street, Strip or Marine applications with dual keyways.

They have a STD 3/16” and 1⁄4” 180 degrees opposite keyways. All Blown balancers come with a larger seal boss diameter.
They are available in External or Neutral Balance configurations. There is a weight saving applicable to our Steel/Alloy units. Front inner hub face can be Standard Factory layout or our standard 6 Bolt pattern with a 2” inch register which suits standard blower pulleys.

The RPM ranges to 10,000.

Race Series

Alloy Inner Hub (2011 Aluminium Bar T6) / Alloy Outer Ring (2017A Aluminium Hollow T4510), for Marine, 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. 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. They are only available in Neutral Balance. Extreme weight savings with as little as 1kg total balancer weight is possible. The RPM ranges to 10,000.

IMPORTANT NOTES AND RECOMMENDATIONS

1. SCAT AND EAGLE CRANKS / UNDERSIZE BORES
Eagle cranks for some reason are always produced with an undersize as standard and this undersize can often vary The snout size on these brands will always need to be measured/checked before purchasing.
All ROMAC Balancers can be ordered with undersize bores (0.001" to 0.0010") Please call us for more details on pricing and availability. To be sure of the bore size you need you should measure this prior to contacting us.

2. DRY SUMPS AND/OR OTHER BALANCER LOADING
If using dry sump pumps or items driven of the inner hub of the balancer please use a balancer with a Steel Inner Hub.

3. HIGH COMPRESSION AND LARGER STROKED ENGINES
We strongly recommend  the use of  a steel inner / alloy outer balancers for higher compressions and larger stroked engines.

4. BOLTING ACCESSORIES TO BALANCERS
Please only ever use factory length/short balancer to crankshaft bolts to retain Romac balancers - all accessories are to be bolted to the inner hub separately.