Mercury Racing 525 HP EFI Gen 6 3.8L Whipple Supercharger System - Port Injection Version

MERCURY RACING 525 HP EFI
GEN 6 3.8L WHIPPLE SUPERCHARGER SYSTEM

The Mercury Racing 525 HP EFI Gen 6 3.8L Whipple Supercharger System - Port Injection Version is designed for compatible 525 HP EFI marine engine applications that need a complete high-output supercharger package with upgraded fuel delivery, ECM recalibration, and intercooled boost. This system combines Whipple twin-screw supercharger technology with a port-injection based manifold and supporting marine fuel system components.

Now featuring the Gen 6 3.8L supercharger, this system is engineered for strong airflow capacity, instant boost response, cooler discharge temperatures, and broad torque delivery across the RPM range. The Whipple twin-screw supercharger can generate boost quickly without the lag associated with centrifugal-style superchargers, giving the boat stronger acceleration, improved planing performance, better cruising power, and increased top-end potential when the complete setup supports it.

The port-injection system uses a new port-injection based manifold, billet -8AN anodized fuel rails, high-flow fuel injectors, Aeromotive marine fuel pump, adjustable fuel pressure regulator, billet fuel/water separator, and fuel cooler. This makes the system a more complete fuel-supported package for customers looking to build beyond the throttle body injection version.

Whipple includes ECM recalibration to support complete engine management, including fuel, spark, and detonation protection. The system is designed to work with the compatible factory ECM while retaining strong idle, starting, and driveability when properly installed and calibrated.

Stage 1 is the base supercharger system and features the original 8" wide x 3.0" thick coated aluminum intercooler core with 6-7 psi of boost. Stage 2 builds on Stage 1 with a 5" thick cupronickel intercooler core featuring dual inlet/outlet water flow, plus a .125" smaller supercharger pulley for approximately 1 psi more boost.

Major kit components are pre-assembled to support a cleaner installation, and the system is available in Hi-Performance Blue finish, polished finish, custom color, and other finish options. Finish and stage selections should be chosen based on the customer's engine package, build goals, available clearance, and complete installation requirements.

Stage Options

• Stage 1: Base supercharger system with 8" wide x 3.0" thick coated aluminum intercooler core and 6-7 psi of boost
• Stage 2: Adds a 5" thick cupronickel intercooler core with dual inlet/outlet water flow and a .125" smaller supercharger pulley for approximately 1 psi more boost

Key Features

• Gen 6 3.8L Whipple twin-screw supercharger system
• Designed for compatible Mercury Racing 525 HP EFI applications
• Port-injection version with dedicated port-injection based manifold
• Up to 60% horsepower increase in supported applications
• Reprogrammed factory ECM for fuel, spark, and detonation protection
• Billet 10-rib belt system
• Billet -8AN anodized fuel rails
• High-flow fuel injectors
• Aeromotive marine fuel pump and adjustable fuel pressure regulator
• Billet fuel/water separator and fuel cooler
• Stage 2 cupronickel intercooler option for increased cooling capacity and water flow
• Instant boost response with no centrifugal-style lag
• Flat torque curve across a wide RPM range
• Self-contained supercharger oiling system
• Designed for installation without internal engine modifications
• Major kit components are pre-assembled for easier installation
• Available with Hi-Performance Blue, polished, custom color, and other finish options

Application note: Verify engine model, ECM compatibility, stage selection, finish selection, fuel system requirements, boost configuration, intercooler configuration, available engine-compartment clearance, and complete installation requirements before ordering. Final power results can vary based on engine condition, boat setup, prop selection, fuel quality, calibration, operating environment, and installation.