ENGINE · 1986-1994
B6T tuning
B6T — Mazda 1.6 turbo (323 GTX / Familia GT-R). I4 turbo DOHC 16v, 1.6 L, 210 HP (Familia GT-R) stock. Cars: Mazda 323 GTX, Familia GT-R BG8Z, Ford Laser TX3 (Asia / Australia).
Engine specs
| Engine code | B6T |
|---|---|
| Configuration | I4 turbo DOHC 16v |
| Displacement | 1.6 L |
| Production years | 1986-1994 |
| Stock power | 210 HP (Familia GT-R) |
| ECU family | Mazda 16-bit ECU + standalone-friendly → |
Tuning stages on B6T
| Stage 1 | +20-35 HP |
|---|---|
| Stage 2 | +50-80 HP |
| Stage 3 | +150-250+ HP (Garrett GT2871R + supporting hardware) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on B6T
Common DTC codes on B6T
Brands running B6T
Workshop workflow
- Read the B6T 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 Mazda 16-bit ECU + standalone-friendly 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.