Jaguar S Type All 4.2 V8 R 400hp
Real standard and upgraded performance figures for the 4.2 V8 R 400hp engine in the Jaguar S Type All.
These are real standard and Stage 1 (and where available, Stage 2) figures for the Jaguar S Type All 4.2 V8 R 400hp — not a generic estimate for the model range.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 400 | 541 |
| Stage 1 | 420 | 565 |
| Stage 2 | 430 | 577 |
- Make
- Jaguar
- Model
- S Type
- Generation
- All
- Engine
- 4.2 V8 R 400hp
- Fuel type
- Petrol
Frequently asked questions
Is Stage 1 tuning safe for the Jaguar S Type All 4.2 V8 R 400hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 4.2 V8 R 400hp make after tuning?
Standard output is 400 HP / 541 Nm; Stage 1 on this engine typically reaches 420 HP / 565 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Jaguar S Type All 4.2 V8 R 400hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 4.2 V8 R 400hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.