ENGINE · 1991-2010
4.6 Modular tuning
Ford 4.6L Modular V8 (Mustang Cobra, Lightning, Crown Vic, etc.). V8 NA / supercharged 2v / 3v / 4v DOHC, 4.6 L, 215-390 HP (Cobra Terminator 390 SC) stock. Cars: Ford Mustang GT / Cobra / Mach 1 / Bullitt, F-150 Lightning, Crown Victoria PI, Lincoln Mark VIII.
Engine specs
| Engine code | 4.6 Modular |
|---|---|
| Configuration | V8 NA / supercharged 2v / 3v / 4v DOHC |
| Displacement | 4.6 L |
| Production years | 1991-2010 |
| Stock power | 215-390 HP (Cobra Terminator 390 SC) |
| ECU family | Ford SCT-style PCM → |
Tuning stages on 4.6 Modular
| Stage 1 | +15-25 HP NA / +40-60 HP SC |
|---|---|
| Stage 2 | +30-50 HP NA / +80-130 HP SC (pulley + headers + intake) |
| Stage 3 | +100+ HP NA (4V swap) / +200+ HP SC (smaller pulley + injectors) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on 4.6 Modular
Common DTC codes on 4.6 Modular
Brands running 4.6 Modular
Workshop workflow
- Read the 4.6 Modular ECU via OBD or bench using your existing flasher (KESS3, AutoTuner, MPPS, Trasdata, FRF).
- Open Softechpro V5 and drag the .bin / .ori / .hex / .s19 / .frf onto the workspace. The Ford SCT-style PCM variant is auto-detected.
- Pick the service tab and apply Stage 1 / 2 / 3 / DPF OFF / EGR OFF / AdBlue OFF as required.
- Save patched .bin — the TPROT + multi-block CRC32 is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.