Boat / Jet Ski
Mercury Marine · QSD
4.2 270270hp
From 2000 · 2000 → present
Tuning gain
+61HP
+117Nm
Stock HP
270hp
Tuned HP
331hp
Stock Torque
603Nm
Tuned Torque
720Nm
Power curve
Horsepower
+61 hpStock
270
Tuned
331
Torque curve
Torque
+117 NmStock
603
Tuned
720
Power & torque curves
Illustrative · interpolated from peak values- Stock HP
- Stock Nm
- Tuned HP
- Tuned Nm
Available tuning options· Chiptuning
stage 1vmax
About this tune
DynoVault's Stage 1 chiptuning for Mercury Marine QSD 4.2 270270hp delivers a measured gain of +61 hp (270 → 331) and +117 Nm of torque (603 → 720). The ECU file is custom-mapped per variant and tested against the original safety margins for boost, fueling, and EGT. Available with a lifetime tune warranty and optional fuel-economy mode.
Benefits
- ▸Custom file guarantee.
- ▸It may minimize fuel consumption.