Catalog/ Trucks & buses/ FAW/ Hongyan
← FAW Hongyan engines

FAW Hongyan Z21 3.9L 4L 147hp

All · 147 hp · diesel
Stage 1
OriginalAfter tuningDiff
Power hp147 180 +33
Torque Nm510 595 +85
Power gain
+22%
Torque gain
+17%
Fuel economy −9%
Before
9.8 L / 100 km
After tuning
9.0 L / 100 km
Saves ≈ 0.8 L / 100 km — about 849 L (over 100 000 km) ≈ €1 486
Estimate for a typical duty cycle · real saving depends on load & driving style
Ready to feel these +33 hp on the road?
Get your ready-to-flash Stage 1 file for the FAW Hongyan
Order tuning file →
Stage 1 file: €140
✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included
Power graph / Stage 1
PowerTorqueStock
dyno graph