Under-driving balancers are a high performance alternative. Changing the balancer diameter can alter the performance of the accessories and engine rev speeds.
Using the same material and extreme pressurebonded process as PowerBond SFI race series harmonic balancers, PowerBond can also increase your vehicle’s horsepower output with our underdrive harmonic balancers. PowerBond race series underdrive harmonic balancers help reduce the parasitic power loss caused by the front drive accessories. Underdriving also helps prevent over-revving alternators.