Whipple SCP-63500-5 - 3.5" 6-Rib 5 Bolt Supercharger Pulley, Black

Description

Fine-tune your boost levels and maximize supercharger efficiency with the Whipple 3.500" 6-rib supercharger pulley. CNC-machined from premium 6061-T6 billet aluminum, every Whipple pulley is engineered with state-of-the-art lightweight pockets to minimize reciprocating rotating mass and maximize throttle response. Finished in a durable, hard-coated black anodized layer for superior wear resistance and corrosion protection, each unit features an engraved running diameter for immediate size identification. Engineered specifically for high-RPM stability, it includes integrated belt guard retention lips to eliminate belt wandering, slip, and misalignment during hard acceleration. As a general rule of thumb, every 0.125" reduction in pulley diameter yields approximately 1 PSI of additional boost on a properly calibrated combination.

Features & Technical Highlights:

• 6061-T6 Billet Aluminum Construction: Precision CNC-machined from aircraft-grade billet alloy to deliver extreme structural integrity without distortion under high belt tension.
• Lightweight Pocketing: Milled with internal lightening pockets to reduce rotational inertia and reciprocating mass for faster engine revving and less parasitic drag.
• Anti-Wander Belt Guard: Engineered with tall outer flanges to positively capture the drive belt and prevent wandering or throwing belts during aggressive shifts and high RPM running.
• Hardcoat Black Anodized Finish: Provides outstanding resistance against abrasive belt friction, heat cycles, and harsh engine bay environments.
• Laser-Engraved Sizing: Clearly etched with running diameter specifications to eliminate guesswork during boost adjustments and belt changes.
• Predictable Boost Tuning: Engineered to standard running diameters where approximately every 0.125" change translates to a 1 PSI boost adjustment.