600140 is an ACT XACT Prolite flywheel, built for dramatically improved engine response and acceleration with mild to moderate gear rattle. It starts from a heat-treated forging for strength and toughness, with an induction-hardened ring gear for maximum life. One-piece construction reduces the chance of failure and provides uniform, efficient heat transfer away from the clutch disc, eliminating warped inserts or loose ring gears. It is forged, CNC machined, and dynamically computer balanced for smooth high-RPM reliability, and is recommended for race use.
WarrantyInstallation Instructions
Specifications:
- Flywheel Type: XACT Prolite, lightweight one-piece forged flywheel
- Heat-treated forging with induction-hardened ring gear for maximum ring gear life
- One-piece construction for uniform heat transfer and reduced failure points versus multi-piece designs
- CNC machined and dynamically computer balanced for high-RPM reliability
- Mild to moderate gear rattle; recommended for race use
- Backed by ACT's one-year limited warranty
- Part Number: 600140
Vehicle Applications:
- 1988 Mazda RX-7 10th Anniversary
- 1993 Mazda RX-7
- 1994 Mazda RX-7
- 1995 Mazda RX-7
- 1993 Mazda RX-7 R1
- 1994 Mazda RX-7 R2
- 1995 Mazda RX-7 R2
- 1993 Mazda RX-7 Touring
- 1994 Mazda RX-7 Touring
- 1995 Mazda RX-7 Touring
- 1986 Mazda RX-7 Turbo
- 1987 Mazda RX-7 Turbo
- 1988 Mazda RX-7 Turbo
- 1989 Mazda RX-7 Turbo
- 1990 Mazda RX-7 Turbo
- 1991 Mazda RX-7 Turbo
- 2008 Mazda RX-8 40th Anniversary Edition
- 2004 Mazda RX-8
- 2005 Mazda RX-8
- 2006 Mazda RX-8
- 2007 Mazda RX-8
- 2008 Mazda RX-8 Grand Touring
- 2009 Mazda RX-8 Grand Touring
- 2010 Mazda RX-8 Grand Touring
- 2011 Mazda RX-8 Grand Touring
- 2009 Mazda RX-8 R3
- 2010 Mazda RX-8 R3
- 2011 Mazda RX-8 R3
- 2005 Mazda RX-8 Shinka
- 2008 Mazda RX-8 Sport
- 2009 Mazda RX-8 Sport
- 2010 Mazda RX-8 Sport
- 2011 Mazda RX-8 Sport
- 2008 Mazda RX-8 Touring
- 2009 Mazda RX-8 Touring
FAQ
What is the difference between a Prolite and Streetlite flywheel?
Prolite is ACT's lighter-weight flywheel option, giving the most dramatic improvement in engine response and acceleration but with mild to moderate gear rattle, and it is recommended for race use. Streetlite is a heavier alternative built for street and race use with less gear rattle.
Why is one-piece construction important on a flywheel?
One-piece construction removes the extra joints found in multi-piece flywheels, which lowers the chance of failure and lets heat transfer away from the clutch disc more evenly.
Does this flywheel need to be balanced after installation?
No, ACT CNC machines and dynamically computer balances every XACT flywheel at the factory for high-RPM reliability.
Is this flywheel suitable for daily street driving?
ACT recommends the Prolite flywheel primarily for race use because of its mild to moderate gear rattle; drivers who want a quieter street-focused option should consider ACT's Streetlite flywheel instead.