Ford Fiesta ST 1.6L EcoBoost Transformed with Downpipe, Carbon Clean & Custom Dyno Tune
The Ford Fiesta ST has earned a reputation as one of the most enjoyable hot hatches on the road. Its lightweight chassis, responsive handling, and turbocharged 1.6L EcoBoost engine make it an excellent platform for performance upgrades.
This particular Fiesta ST came into RevHigh Performance Tuning for a complete performance package aimed at restoring lost power, improving engine efficiency, and unlocking the full potential of the EcoBoost engine.
Work Completed
To achieve the best results, we carried out the following upgrades and maintenance:
High-Flow Downpipe
Custom Dyno Tune
Engine Health Check
Walnut Carbon Clean
New Turbo Studs
Before making any performance improvements, we performed an engine health check to ensure the vehicle was in good condition. The intake valves were then cleaned using our walnut carbon cleaning process to remove built-up carbon deposits commonly found in direct-injection engines.
A high-flow downpipe was installed to improve exhaust flow before completing a custom dyno calibration tailored specifically to the vehicle.
Dyno Results
Before
Power: 145.8 kW
Torque: 462.4 Nm
After
Power: 170.9 kW
Torque: 517.4 Nm
Total Gains
+25.1 kW
+55.0 Nm
These gains resulted in a noticeable improvement throughout the entire rev range, delivering stronger acceleration, sharper throttle response, and a more enjoyable driving experience.
Why Carbon Cleaning Matters
Direct-injection engines like the 1.6L EcoBoost are prone to carbon buildup on the intake valves over time. As deposits accumulate, airflow is restricted, which can reduce engine efficiency and overall performance.
A walnut carbon clean helps restore proper airflow by removing these deposits without damaging engine components, providing an ideal foundation before custom tuning.
The RevHigh Difference
Every vehicle that comes through our workshop is individually assessed and tuned to suit its condition and modifications. Rather than relying on a generic off-the-shelf calibration, each custom dyno tune is developed specifically for the vehicle to maximise performance while maintaining reliability.
For this Fiesta ST, the combination of a healthy engine, improved exhaust flow, and a custom calibration delivered excellent gains while retaining everyday drivability.
If you're looking to get the most out of your Ford Fiesta ST or other performance vehicle, contact RevHigh Performance Tuning to discuss the right upgrade package for your goals.
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