600951 - ACT XACT Streetlite Clutch Flywheel
Note: Single mass flywheel conversion. Can be used with both factory clutch kit and ACT clutch kits. Gear rattle is expected. Flywheel bolts included (M10-1.0 x 22mm).
Specifications
| Item Description | ACT XACT Streetlite Clutch Flywheel |
|---|---|
| Product Weight (lbs.) | 15.2 |
| Material | Chromoly Steel |
| Friction Surface Diameter (Inches) | 9.4 |
| Friction Surface Diameter (Millimeters) | 240 |
| Flywheel Type | Streetlite |
| Tooth Quantity | 117 |
| Warranty | 12 Months (view details) |
| SFI | 1.1 |
Description
600591 is a Streetlite flywheel, which is considerably lighter than stock and is the most durable flywheel offering from ACT. Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. ACT's Streetlite flywheels are preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts.
| Feel | Noticeably improved engine response and acceleration, OE to mild 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 street and race use |
| ACT Difference | Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability |
Vehicle Fitment
| Application | Engine |
|---|---|
| 2007 Audi RS4 Base | 4.2 V8 GAS FI 4172cc |
| 2007 Audi RS4 Base | 4.2 V8 GAS FI 4163cc |
| 2008 Audi RS4 Base | 4.2 V8 GAS FI 4172cc |
| 2008 Audi RS4 Base | 4.2 V8 GAS FI 4163cc |
| 2008 Audi RS4 Cabriolet | 4.2 V8 GAS FI 4172cc |
| 2007 Audi RS4 B7 [Euro] | 4.2L V8 FSI| NA |
| 2008 Audi RS4 B7 [Euro] | 4.2L V8 FSI| NA |
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