The Science of Speed supercharged NSX project aimed to amplify the NSX’s character without corrupting its balanced nature, providing a factory-level fit, finish, and feel. This modification demonstrates how forced induction can enhance an already exceptional platform while maintaining its core values. In this article, we’ll explore the engineering behind this project.
System Design Philosophy
The development team approached the supercharger installation with careful consideration of the NSX’s character:
Choosing the Supercharger
The selection process focused on finding a unit that would complement the V6 engine:
- Eaton TVS supercharger unit selected for efficiency and size
- Power characteristics that complement the V6 engine’s torque curve
- Compact design to fit within the engine bay constraints
- Proven reliability for daily driving applications
The team prioritized a supercharger that would provide immediate throttle response rather than maximum peak power, maintaining the NSX’s character as a driver’s car.
Manifold and Intercooler Design
Advanced engineering was applied to the supporting components:
- CAD and CFD work for optimal intake manifold design
- Air-to-water intercooler system for consistent charge temperatures
- Flow characteristics optimized for the entire RPM range
- Integration with existing engine management systems
The intercooler system was particularly critical to ensure consistent performance under sustained high-load conditions.
Integration and Electronics
The supercharger system required seamless integration with the NSX’s sophisticated electronics:
Engine Management
Tuning solutions balanced power and drivability:
- Re-flash of the factory computer rather than standalone ECU
- Challenges of tuning for both power and OEM-level drivability
- Integration with existing traction control and stability systems
- Preservation of factory diagnostic capabilities
The decision to work with the factory ECU rather than replace it maintained the NSX’s reliability and serviceability.
Fuel System Upgrades
Science of Speed’s components supported the increased power:
- Custom injectors sized for the power increase
- Fuel pump kit to maintain adequate fuel pressure
- Integration with existing fuel rail and regulator
- Retention of factory fuel system architecture
The Results
The modification delivered significant improvements while maintaining the NSX’s character:
Dyno Charts
Dynamometer testing showed substantial gains:
- Before-and-after horsepower and torque comparisons
- Gains across the entire RPM range rather than just peak numbers
- Improved low-end torque for better street driving
- Consistent power delivery throughout the rev range
Driving Impressions
The supercharger changed the driving experience in positive ways:
- Instant throttle response that complements the supercharger
- Powerful yet linear acceleration characteristics
- Enhanced engine sound without being intrusive
- Maintained the NSX’s balanced handling despite increased power
Conclusion
The Science of Speed supercharged NSX project demonstrates how thoughtful modifications can enhance an exceptional car without compromising its fundamental character. By focusing on integration rather than just power increases, the project created a vehicle that delivers more performance while maintaining the NSX’s renowned balance and usability.
This approach to modification serves as a template for performance upgrades – enhancing what makes a car special rather than simply adding power. The result is a vehicle that satisfies both the desire for more performance and the need for daily driving practicality.