Your Vehicle
McLaren 650S 3.8 V8 650hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible. Stage 2: remap combined with downpipe / sports air filter.
Stage 1: file 100 € online, installation quoted by the workshop Ask for a quote Stage 2: quoted on request Ask for a quote
Power HP
Torque Nm
Stage 1 for this engine: quote first, then the file online
The file costs 100 € online; the installation depends on how your ECU is worked on and the workshop confirms it. Ask for a quote: you receive the price and the link to buy the file. · terms
Power Graph · Stage 1
McLaren 650S 3.8 V8 650hp: da 650 a 700HP
Values for Stage 1 (change the stage from the control above)
Remapping McLaren 650S
MasterTuning develops remapping for McLaren. La McLaren 650S 3.8 V8 650hp può passare da 650 HP a 700 HP con un incremento di 50 HP.
The development of each remap is customized by MasterTuning.
- 100% customised files with lifetime warranty
- Reference values for Stage 1: the file is developed on your vehicle and checked in the workshop
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details McLaren 650S 3.8 V8 650hp
The McLaren 650S 3.8 V8 650hp is equipped with a petrol engine that produces 650 HP and 678 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this McLaren can achieve 700 HP (+8%) and 740 Nm (+9%).
Our Stage 1 tuning for the 650S All delivers an impressive gain of +50 HP and +62 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code 38JBAA identifies this specific powerplant configuration. The Bosch MED17.8.3.2 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 650 HP from factory, this McLaren 650S is already a performance vehicle. Our remapping extracts even more potential, delivering exhilarating acceleration and enhanced driving dynamics for enthusiasts who demand the best.
Technical Specifications — McLaren 650S 3.8 V8 650hp
Factory technical data for the McLaren 650S 3.8 V8 650hp (All), used by MasterTuning engineers to develop a remap tailored to this specific powerplant. Figures shown are reference values for Stage 1; the file is developed on your vehicle and checked in the workshop.
| Engine code | 38JBAA |
|---|---|
| ECU / Control unit | Bosch MED17.8.3.2 |
| Fuel | Petrol |
| Compression ratio | 8.7 |
| Bore × stroke | 93.0 X 69.9 mm |
| Stock power | 650 HP · 678 Nm |
| Remapped power (Stage 1) | 700 HP (+50) · 740 Nm (+62) |
Don't want to touch the ECU?
Rapid Dimsport add-on modules connect to the engine sensors with original connectors: they fit in a few hours and come off without a trace, leaving the factory software untouched. Useful on a leased car, one still under warranty or one you plan to sell soon. Check which ones fit your McLaren 650S.
Frequently Asked Questions - McLaren 650S
How much power can I gain from remapping my McLaren 650S?
With MasterTuning Stage 1, your McLaren 650S 3.8 V8 650hp can gain +50 HP (from 650 to 700 HP) and +62 Nm of torque. This represents a 8% increase in power.
Which ECU does the McLaren 650S 3.8 V8 650hp use?
The McLaren 650S 3.8 V8 650hp uses the Bosch MED17.8.3.2 engine control unit. MasterTuning recalibrates this ECU for Stage 1 and Stage 2.
What is the engine code of the McLaren 650S 3.8 V8 650hp?
The engine code of the McLaren 650S 3.8 V8 650hp is 38JBAA. You can find it in the vehicle documents or on the engine plate.
Is ECU remapping safe for the McLaren 650S engine?
Yes, MasterTuning's remapping for the McLaren 650S 3.8 V8 650hp is developed within safe parameters. Each file is developed on your vehicle, checked in the workshop and stays within the mechanical limits of the 38JBAA engine.
Is the McLaren ECU remapping reversible?
Absolutely. The original factory calibration of your McLaren 650S is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my McLaren warranty?
ECU remapping may affect your manufacturer warranty. We recommend checking your specific warranty terms. Many of our customers choose to remap after the warranty period or accept this trade-off for the significant performance gains.
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