SneedSpeed R53/R52 MINI S & JCW Supercharger – Comparison Street vs Sport Series
Posted by Mamta Sharma on 3rd Nov 2025
The SneedSpeed R53/R52 MINI S & JCW Supercharger is a remanufactured supercharger for MINI Cooper S and JCW (R52/R53) available in two variants-the Street Series and the Sport Series. This guide compares both, explaining how they differ in performance, reliability, and tuning potential using SneedSpeed supercharger upgrades.
|
Feature |
Street Series |
Sport Series |
|
Fitment |
R52/R53 MINI Cooper S & JCW |
R52/R53 MINI Cooper S & JCW |
|
Core Type |
OEM Eaton M45 |
Ported Eaton M45 |
|
Porting |
OEM Geometry |
CNC Ported Inlet & Outlet |
|
Rotor Coating |
OEM-style restored finish |
Enhanced low-friction coating |
|
Boost Output |
Stock (≈11–12 psi) |
+8–10% efficiency gain (≈12–14 psi) |
|
Tune Required |
No (Factory ECU compatible) |
Recommended (Stage 1/2) |
|
Ideal Use |
Daily driving & restoration |
Tuned or performance builds |
|
Power Gain |
Restores OEM performance |
+15–25 whp with supporting mods |
Street Series Overview
The Street Series is a factory-spec remanufactured supercharger built for OEM performance and reliability. It includes all-new bearings, seals, and water-pump gears. Designed for direct fitment, the Street Series restores smooth power delivery and instant throttle response without requiring a tune. SneedSpeed engineering ensures long-term reliability, making it ideal for daily drivers or restorations.
Sport Series Overview
The Sport Series builds on the same base with performance-focused upgrades: CNC-ported inlet and outlet runners, enhanced rotor coating, and higher airflow efficiency. The result is quicker boost, improved torque across the rev range, and better high-RPM performance. Perfect for tuned or track-focused MINIs using SneedSpeed precision upgrades.
Thermal Management & Reliability
Both units feature upgraded high-temperature bearings and seals to prevent oil or coolant leaks. The Sport Series additionally benefits from reduced heat buildup under load thanks to smoother airflow and lower parasitic drag, backed by SneedSpeed-tested reliability.
Performance Gains
Street Series units restore lost factory power, typically bringing a tired R53 back to ~170hp at the crank. The Sport Series can add up to 15–25whp with supporting mods such as intake, intercooler, and tune. Throttle response is noticeably sharper, and the signature MINI supercharger whine becomes more pronounced with the SneedSpeed R53/R52 MINI S & JCW Supercharger installed.
Choosing the Right Version
- Choose Street Series if you want factory drivability, OEM reliability, and easy installation.
- Choose Sport Series if you have performance mods or plan to tune your MINI for stronger acceleration. Both versions deliver improved longevity and are built using SneedSpeed race-proven methods.
The SneedSpeed R53/R52 MINI S & JCW Supercharger line brings new life to aging MINIs. Whether you pick the Street or Sport version, you’re choosing a precision-engineered upgrade backed by years of SneedSpeed performance experience.For inquiries or assistance, contact us at support@sneedspeed.net
For inquiries or assistance, contact us at support@sneedspeed.net
Available now at:
https://sneedspeed.net/sneedspeed-r53-r52-mini-s-and-jcw-supercharger/