2007 – 2011 Chevy HHR 2.2L Stage 1 Performance Tune

Benefits of Chevy HHR 2.2L Stage 1 Performance Tune

1. Cooling Fans set to 205F
2. Fan speed increase for more rapid cooling.
3. Speed Limiter Removed
4. Mass Air Flow sensor calibrated for most cold air intakes on the market.
5. Power Enrichment delay removed to allow for more immediate Full-Throttle response
6. Air Fuel Ratio adjusted for better performance.
7. Timing Calibrated for Premium Grade Fuel. (91+ octane).
8. Low end torque and fuel economy improved by adjusted timing
9. Spike at ~4,000rpms less severe due to a more linear power curve
10. Top end timing advanced for better peak horsepower
11. RPM Limiter increased in manuals to allow for more aggressive full throttle shifts
12. Torque Management (granny controls) removed to prevent computers from reducing torque output below 3,000 RPMs
13. Typical gains: 8-10HP and 12-18lbs of TQ at the wheels.
14. *NEW* Automatic Transmission equipped cars now have Full Throttle Shift points raised to 6,750 RPM.
15. *NEW* Automatic Transmission shift time reduced by 0.25 seconds per gear change.