600521 - ACT XACT Prolite Clutch Flywheel
Note: Must be used with ACT pressure plate and disc (not included). Pressure Plate bolts included (M8-1.25 x 16mm).
Specifications
| Item Description | ACT XACT Prolite Clutch Flywheel |
|---|---|
| Product Weight (lbs.) | 15.7 |
| Material | Chromoly Steel |
| Friction Surface Diameter (Inches) | 9.4 |
| Friction Surface Diameter (Millimeters) | 240 |
| Flywheel Type | Prolite |
| Tooth Quantity | 112 |
| Warranty | 12 Months (view details) |
| SFI | 1.1 |
Description
600521 is a Prolite flywheel, which is ACT's lighter flywheel offering with lowest inertia. Prolite flywheels are designed for best throttle response and acceleration. Prolite flywheels are preferred for road racing or rally racing, and have reduced drivability. Materials are properly distributed for maximum strength, good heat tolerance and rigidity. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts.
| Feel | Dramatically improved engine response and acceleration, mild to moderate gear rattle |
|---|---|
| Life | Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life |
| Quality | 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 |
| Recommended Use | Recommended for race use |
| ACT Difference | Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability |
Vehicle Fitment
| Application | Engine |
|---|---|
| 2006 Mazda 6 Mazdaspeed | 2.3 L4 GAS FI 2260cc | DOHC |
| 2007 Mazda 3 Mazdaspeed | 2.3 L4 GAS FI 2260cc | Turbocharged |
| 2007 Mazda 6 Mazdaspeed | 2.3 L4 GAS FI 2260cc | DOHC |
| 2008 Mazda 3 Mazdaspeed | 2.3 L4 GAS FI 2260cc | Turbocharged |
| 2009 Mazda 3 Mazdaspeed | 2.3 L4 GAS FI 2260cc | Turbocharged |
| 2010 Mazda 3 Mazdaspeed | 2.3 L4 GAS FI 2260cc | Turbocharged |
| 2011 Mazda 3 Mazdaspeed | 2.3 L4 GAS FI 2260cc | Turbocharged |
| 2012 Mazda 3 Mazdaspeed | 2.3 L4 GAS FI 2260cc | Turbocharged |
| 2013 Mazda 3 Mazdaspeed | 2.3 L4 GAS FI 2260cc | Turbocharged |
Frequently Asked Questions
- Can I use an aftermarket flywheel with an ACT clutch?
- The ACT clutch system is designed to work with both stock and good quality aftermarket flywheels. Inferior aftermarket flywheels may have trouble with warpage or high wear. When replacing a flywheel, be sure that the new flywheel meets the same specifications, such as proper step, ring gear tooth count, flywheel thickness, ring gear offset, etc. If the ACT clutch is designated as part of a conversion kit, then it must be used with only the corresponding ACT flywheel.
- What is a flywheel step?
- The flywheel step determines the proper working range of the pressure plate and is extremely crucial for the clutch to work properly. The step is the distance between the friction surface and the pressure plate mounting point on the flywheel. Depending on the make and model of the car it can either be an UP step or DOWN step and sometimes the flywheel will be flat (zero step). Check the manufacturer's specifications about the proper flywheel step for the application.
- Can the XACT Flywheels be resurfaced, and is there a special process?
- Yes, ACT XACT flywheels can be resurfaced just like a stock flywheel and there is no special process other than using a flywheel grinder in good condition to remove as little material as possible for full cleanup (no more than 0.040” / 1.02mm may be removed). Make 100% sure that the proper flywheel step is maintained as this will affect the clutch function if incorrect.
PROP 65 WARNING
This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. for more information, visit www.P65Warnings.ca.gov