Boat / Jet Ski
Yanmar · 4Jh Series
4JH80 2.0L I480hp
From 2000 · 2000 → present
Tuning gain
+9HP
+19Nm
Stock HP
80hp
Tuned HP
89hp
Stock Torque
157Nm
Tuned Torque
176Nm
Power curve
Horsepower
+9 hpStock
80
Tuned
89
Torque curve
Torque
+19 NmStock
157
Tuned
176
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 Yanmar 4Jh Series 4JH80 2.0L I480hp delivers a measured gain of +9 hp (80 → 89) and +19 Nm of torque (157 → 176). 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.
- ▸Possibly of minimize fuel consumption.