Acura NSX JNC1 3.5L Twin-Turbo V6: Hybrid Specs, Controllers & Maintenance
Honda / Acura · Engine Information
JNC1 · NSX Twin-Turbo V6
The NSX combines a bespoke twin-turbo V6 with three electric motors and a nine-speed dual-clutch gearbox. Engine power and combined hybrid power are different figures; the Type S raises both.
Engine design
| Specification | Detail |
|---|---|
| Displacement / layout | 3,493 cc; 75° V6 |
| Bore × stroke / compression | 91 × 89.5 mm; 10.0:1 |
| Valvetrain | DOHC, 24 valves; VTC; timing chains |
| Fuel / induction | Port plus direct injection; two single-scroll turbos |
| Lubrication / redline | Six-rotor dry sump; 7,500 rpm |
| Hybrid drivetrain | Three electric motors; 9DCT |
Codes & factory output
| Variant | Engine hp / lb-ft | System hp / lb-ft |
|---|---|---|
| NSX 2017–2021 | 500 / 406 | 573 / 476 |
| NSX Type S 2022 | 520 / 443 | 600 / 492 |
U.S. & Canadian applications
| Model | Model years | Engine code | Transmission |
|---|---|---|---|
| Acura NSX · NC1 | 2017–2021 | JNC1 family | 9DCT · three-motor hybrid |
| Acura NSX Type S · NC1 | 2022 | JNC1 family; revised hardware/calibration | 9DCT · three-motor hybrid |
Engine controllers
| Application / PCM family | Controller / hardware | Identification details |
|---|---|---|
| Engine control | Acura PGM-FI within a multi-controller hybrid system | Engine PCM and hybrid controllers serve different functions |
| Documented NC1 application | 58G identifiers in KTuner support history | Special NC1 hardware compatibility; not a full physical PCM number |
Identify the engine PCM separately from the battery, motor and transmission controllers. Match exact hardware and calibration identifiers when choosing diagnostic or programming equipment.
Common issues & maintenance
- Fuel-tank crossover pipeCertain 2017–2018 NSX vehicles have a recall for fuel leakage. Check the VIN and recall completion.
- Fuel-pump campaignCertain 2017–2020 NSX vehicles are included in the pump recall. No-starts or stalling need prompt diagnosis.
- Oil & hybrid-system proceduresFollow the model-specific dry-sump level-check procedure and service the cooling systems correctly. Hybrid faults require qualified diagnosis.
Use Acura’s NSX-specific service procedures and fluid specifications. Check recall status and avoid applying conventional wet-sump oil-check instructions to this engine.
References
| Topic | Source |
|---|---|
| Factory engineering | Acura 2017 NSX technical introduction |
| Type S specifications | Acura 2022 NSX specifications |
| Type S power changes | Acura NSX Type S reveal |
| JNC1 technical development | Honda R&D technical paper |
| Controller application history | KTuner release history |
| Fuel crossover pipe | Acura bulletin 18-053 |
| Fuel-pump recall | Honda/Acura recall statement |
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