BHP+80 hp (19%)
Standard
420 hp
Tuned
500 hp
Torque+360 Nm (17%)
Standard
2100 Nm
Tuned
2460 Nm
Suitability
Good (7/10)Gains Profile
BalancedHeadroom
MediumScania Trucks R-Series 420 ECU Remapping
Considering an ECU remap for your Scania Trucks R-Series 420? A Stage 1 remap can take this All diesel engine from 420 BHP to 500 BHP and from 2100 Nm to 2460 Nm of torque (turbocharged). This engine scores 7/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Scania Trucks R-Series can achieve.
How this engine compares
- 6thof 16 Scania Trucks R-Series engines by power gain
- 95%of the 9,842 engines we hold gain data for see a smaller power increase
- 99%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Scania Trucks R-Serie 420 is a turbocharged diesel engine producing 420 BHP and 2100 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 500 BHP and 2460 Nm — a gain of around 80 BHP (19%) and 360 Nm (17%).
This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
Considerations: High tuned torque: check transmission torque capacity and service history.
Fuel economy note: possible improvement with conservative driving.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!High tuned torque: check transmission torque capacity and service history.
Other R-Series All Engines
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