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- Preferred for Road Racing or minimum inertia
- Quick throttle response and acceleration
- Lightest with lowest inertia
- Reduced drivability
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- Preferred for Street and Drag Racing
- Improved throttle response and acceleration
- Considerably lighter than stock
- Most durable flywheel available
- Good drivability
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- Quicker acceleration and increased throttle response
- Maximum gear life - gear will not wear out or fall off
- Serviceable - can be resurfaced with no need to purchase additional parts
- Chrome-moly forgings three times more rigid than aluminum
- Longer lasting because of heat treated friction surfaces
- Excellent heat capacity from retaining adequate material behind the friction surface
- Trouble-free single piece design
- SFI certified to insure safety
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ACT flywheels are lighter, stronger and safer than stock cast flywheels to meet the needs of both enthusiast and hard core racer. |
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Material is properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. |
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One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears. |
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Integral ring gear permits more weight reduction where it matters most and eliminates the chance of gear breakage or separation from the flywheel. |
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Precision machined threads will not easily strip out or get damaged like those found on aluminum flywheels. |
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ACT engineers XACT flywheels using the latest CAD and FEA (finite element analysis) software to evaluate all design alternatives to get the best results possible. |
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By hot forging chrome-moly steel, each flywheel yields an ultra fine centralized grain structure that is superior in strength to any other manufacturing method. |
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Timing marks are precisly located and clearly displayed (when applicable). |
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ACT gives extra effort to strategically slot XACT ProLite flywheels to lower inertia without sacrificing strength and heat dissipation. |
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ACT heat treats the entire forging for strength and toughness, and induction hardens their ring gears for longest gear life. |
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XACT Flywheels are certified as meeting SFI Specification 1.1. XACT Flywheels are legal for competition in all racing organizations where SFI certification is required. |
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Ring gears are cut with lead-in chamfers for better starter engagement and prevention against rounding off gear teeth. |
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Engineers at ACT demand tight tolerances for fit, concentricity and parallelism so that flywheels will have an exact fit onto the crankshaft, and operate smoothly even at extremely high rpm. |
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All flywheels are CNC machined and dynamically computer balanced for super smooth high RPM reliability. |
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