Overview

Lightweight single mass flywheel designed for the legendary Alfa Romeo models equipped with the 2.5 V6 “Busso” engine. Precision machined from solid billet steel and individually dynamically balanced to deliver instantaneous throttle response and ultimate reliability at high RPMs.

Specifications

• Weight: 5.8 kg
• OEM flywheel: ~8.5 kg
• Type: Single mass, billet steel
• Balancing tolerance: ≤ 0.1 g
• Individually balanced (not batch processed)

Performance Characteristics

Reduced rotational mass on the V6 drivetrain results in:

• uncompromising, razor-sharp throttle response
• significantly faster engine acceleration through the entire rev range
• quicker rev drop between shifts, perfect for heel-and-toe downshifting
• More direct, mechanical connection between the iconic Busso V6 and the wheels.

Construction

• CNC machined from premium solid steel billet for maximum structural integrity
• Optimized mass distribution to achieve the perfect balance between low inertia and driveability
• Integrated ring gear designed to withstand abusive high-RPM gear changes
• Final precision balancing executed individually on each unit to eliminate engine vibration

Compatibility

• Engine: 2.5 V6 24V (Busso)
• Models: Alfa Romeo 147, 156  (also compatible with 2,5 V6 24V models sharing the same gearbox/clutch.
• Compatible with OEM size and upgraded performance clutch kits.

Included

• Lightweight billet steel flywheel
• Individual balancing certificate (≤ 0.1 g)

Important

• Highly recommended for fast-road, track day, and motorsport applications.