ENGINE · 1969-1984
L28E / L28ET tuning
L28 — Datsun / Nissan 2.8 inline-6 (240Z / 280ZX / Skyline GTS-R). I6 NA / turbo SOHC, 2.8 L, 170-180 HP (L28ET turbo) stock. Cars: Datsun 240Z / 280Z / 280ZX (L28E NA), 280ZX Turbo (L28ET).
Engine specs
| Engine code | L28E / L28ET |
|---|---|
| Configuration | I6 NA / turbo SOHC |
| Displacement | 2.8 L |
| Production years | 1969-1984 |
| Stock power | 170-180 HP (L28ET turbo) |
| ECU family | Bosch L-Jetronic + Wolf3D / MegaSquirt → |
Tuning stages on L28E / L28ET
| Stage 1 | +10-20 HP |
|---|---|
| Stage 2 | +30-50 HP (intake + headers + cams + standalone) |
| Stage 3 | +150+ HP (turbo conversion + standalone ECU) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on L28E / L28ET
Common DTC codes on L28E / L28ET
Brands running L28E / L28ET
Workshop workflow
- Read the L28E / L28ET 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 Bosch L-Jetronic + Wolf3D 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 outer CRC is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.