LTFT B1/B2 locked at +12.5% throughout BEFORE — the EQT base fuel map was 12.5% lean, with the ECU fully compensating via adaptive trims. STFT in BEFORE shows −5 to −6%, over-correcting to manage the lean baseline. In AFTER, LTFT decays to ~0% at high RPM — EQT v1.09 corrected the fueling in the base tables. STFT in AFTER shows +1 to +5%, normal closed-loop lean-seeking. Peak WOT lambda: BEFORE 12.05 AFR vs AFTER 11.76 AFR — AFTER is richer, cooler, and safer.
Raw peak: BEFORE 682 ft-lb, AFTER 667 ft-lb. Ideal gas law density correction: TB/TA = 524.07R/549.67R = 0.9535 → CF 1.0491 → 667 × 1.0491 = ~699 ft-lb equivalent at BEFORE IAT conditions. Air mass per stroke differs entirely by density (BEFORE denser air). IAT-corrected AFTER air mass ≈ 1,835 mg/stk vs BEFORE 1,873. Both logs hit the EQT-set 755.24 ft-lb clutch ceiling once spool completes.
AFTER WGD Proportional peaks 55–60% at 2,100–2,700 RPM vs BEFORE 38–55%. The TiAL M800 billet compressor + RSK dual intake feeds more mass flow, developing turbine backpressure faster at low RPM. The stiffer TiAL WG actuator requires higher controller proportional effort to resist this while holding 95% WGD Final. WGD Integral = 0 throughout spool in both logs — correct feedforward+proportional regime, no integral wind-up.
BEFORE PR peaks 3.66; AFTER peaks 3.55 — at equal 44.5 psi boost. With 78.6% lower charge pipe pressure drop (2.5″ vs 1.7″ pipe, area 4.91 vs 2.27 in², ΔP ∝ v² ∝ 1/A²), the same manifold pressure is achieved with less compressor outlet pressure. The TiAL turbos in AFTER spin faster (199k vs 194k RPM) while delivering equivalent MAP with less absolute PR effort — the textbook definition of improved charge path efficiency.
Source 64 = temporary torque limitation from reaching the maximum absolute charge air pressure setpoint — a boost regulation event. Appears in both logs between ~2,100–3,400 RPM during the rapid boost-building phase, then reverts to source 0 once stable boost is established. AFTER engages source 64 slightly more readily because RSK pipes deliver MAP faster with less restriction — correct and expected behavior, not a fault.
BEFORE: all six cylinder correction channels show 0° at WOT. AFTER: Cy1 shows −1.88° at 6,800–7,200 RPM. Cy2–Cy6 all 0° throughout. Knock is Cy1-specific — likely a combination of hotter ambient (75.2°F), TiAL inlet heat concentration, and slight STFT lean-seeking on that cylinder. At −1.88° the ECU successfully suppresses detonation. Ignition RON = 0 in both logs — EQT adaptive octane tables need more heat cycles to converge.
| # | Channel | Before (EQT v1.07) | After (EQT v1.09) | Engineering Finding | Δ |
|---|---|---|---|---|---|
| 1 | Time (sec) | 0–8.07 s | 18.55–25.05 s | Different session offsets, normalized for WOT 3rd gear window | ● |
| 2 | Accelerator Pedal (%) | 99.9% throughout | 99.9% throughout | Full throttle confirmed both logs — valid WOT comparison | ● |
| 3 | Air Mass/Stroke Actual (mg/stk) | Peak 1,873 | Peak 1,749 | BEFORE +124 mg/stk due to denser air. IAT-corrected AFTER ≈ 1,835 mg/stk | ⚠ |
| 4 | Air Mass Set Point (mg/stk) | Peak ~1,900 | Peak ~1,895 | Nearly identical ECU air mass targets — calibration logic consistent | ● |
| 5 | Ambient Air Pressure (psi) | 14.3 | 14.4 | <0.7% delta — negligible density effect on comparison | ● |
| 6 | Ambient Air Temp (°F) | 53.6°F | 75.2°F | BEFORE 21.6°F cooler = ~4% denser ambient air — BEFORE air density advantage | ⚠ |
| 7 | Boost Filtered (psi) | ~30.3 psi gauge | ~30.1 psi gauge | Statistically equal — both achieving ~30 psi gauge (44.5 psi abs − 14.3 baro) | ● |
| 8 | Boost Pre-Throttle Target (psi) | 44 psi at WOT | 44 psi at WOT | Identical target — EQT boost strategy unchanged between v1.07 and v1.09 | ● |
| 9 | Cyl 1 EOI Limit (°) | 196–202° → 0° | 194–196° → 0° | Transitions when dual injection activates; AFTER slightly narrower window | ● |
| 10 | Cyl 1 Injector End Angle (°) | 430–462° | 430–461° | Normal RPM-based EOI progression in both logs | ● |
| 11 | Cyl 1 SOI Primary (°) | 473–487° | 479–488° | SOI timing similar; both show expected retard with rising RPM | ● |
| 12 | Driver Requested Torque (ft-lb) | 692–756 | 694–756 | Both commanding maximum at WOT — driver input consistent | ● |
| 13 | Engine Oil Temp (°F) | 194°F | 201°F | AFTER 7°F warmer — hotter ambient day. Both within normal operating range | ⚠ |
| 14 | Engine Speed (RPM) | 2,104–7,111 | 2,148–7,582 | AFTER extends 471 RPM higher — confidence in EQT calibration at redline | ● |
| 15 | Exhaust Cam B1 Actual (°) | 21–35° | 21–33° | Identical VVT behavior — exhaust cam tables unchanged between maps | ● |
| 16 | Exhaust Gas Temp (°F) | Peak 1,683°F | Peak 1,726°F | AFTER slightly higher EGT at spool — hotter ambient, higher fueling demand | ⚠ |
| 17 | Exhaust Pressure Flow Factor | 0.54→0.38 | 0.53→0.37 | AFTER marginally lower — consistent with TiAL turbine characteristics | ● |
| 18 | Gear | 3rd throughout | 3rd throughout | Consistent gear selection — valid comparison window confirmed | ● |
| 19 | Ignition RON | 0 throughout | 0 throughout | EQT adaptive octane tables not converged — more heat cycles needed | ⚠ |
| 20 | Ignition Timing (°BTDC) | 19°→7° (declining) | 5°→7° (builds then declines) | BEFORE more aggressive at spool; both converge to 5–7° at 5k+ RPM | ● |
| 21 | Ign Correction Cy1 (°) | −1.5° then 0° | 0° then −1.88° at 6,800+ | Only active knock channel in AFTER; mild at high RPM in 75°F conditions | ⚠ |
| 22 | Ign Correction Cy2 (°) | −1.5° then 0° | 0° throughout | AFTER zero Cy2 knock — Cy1-specific heat concentration | ● |
| 23 | Ign Correction Cy3 (°) | −1.5° then 0° | 0° throughout | Clean throughout both logs | ● |
| 24 | Ign Correction Cy4 (°) | −1.5° then 0° | 0° throughout | Clean throughout both logs | ● |
| 25 | Ign Correction Cy5 (°) | −1.5° then 0° | 0° throughout | Clean throughout both logs | ● |
| 26 | Ign Correction Cy6 (°) | −1.5° then 0° | 0° throughout | Clean throughout both logs | ● |
| 27 | Injection Time Pulse 1 (μs) | Peak ~9,419 | Peak ~9,316 | AFTER slightly shorter — richer lambda achieved with less injection time | ● |
| 28 | Injection Time Pulse 2 (μs) | Activates ~3,169 RPM | Activates ~2,787 RPM | AFTER dual injection 382 RPM earlier — higher low-RPM torque demand confirmed | ● |
| 29 | Intake Air Temp (°F) | 64.4→68°F | 86→93.2°F | Critical density variable. RSK Dual Intake suppressing ~10–15°F vs expected | ⚠ |
| 30 | Intake Cam B1 Actual (°) | 17→44° | 16→44° | Identical VVT — full advance at high load in both logs | ● |
| 31 | Intake Pressure Flow Factor | 0→4.0 | 0→3.1 | AFTER lower peak — RSK dual intake reducing pre-compressor inlet restriction | ● |
| 32 | LTFT Bank 1 (%) | Locked +12.5% | Decays 14.06%→~0% | Most significant finding: EQT v1.07 map 12.5% lean. EQT v1.09 corrected it | ✕ |
| 33 | LTFT Bank 2 (%) | Locked +12.5% | Decays 13.28%→~0% | Same B1 finding on B2 — both banks corrected in EQT v1.09 | ✕ |
| 34 | Lambda Bank 1 (AFR) | Peak WOT 11.91–12.05 | Peak WOT 11.47–11.76 | AFTER richer ~0.2–0.4 AFR — safer combustion, lower EGT risk | ● |
| 35 | Lambda Bank 2 (AFR) | Peak ~12.05 | Peak ~11.76–11.91 | AFTER richer on B2 as well — consistent correction across both banks | ● |
| 36 | Lambda pre-CAT B2 Target | 14.7→enrichment | 14.7→enrichment | Identical closed-loop logic — strategy unchanged between maps | ● |
| 37 | MAP Measured (psi) | ~28–30 psi gauge | ~27–29 psi gauge | AFTER slightly lower MAP gauge — RSK pipes absorbing charge path restriction | ● |
| 38 | Post-TStat Coolant (°F) | 185–189°F | 192–199°F | AFTER 7–10°F warmer — hotter ambient session. Both within normal thermostat range | ⚠ |
| 39 | Pressure Ratio at Compressor | Peak 3.66 | Peak 3.55 | KEY FINDING: AFTER lower PR at equal boost = RSK pipes absorbing ~78.6% less ΔP | ● |
| 40 | PR Set Point | 2.49→3.56 | 2.49→3.56 | Identical ECU PR targets — AFTER achieves same target with lower actual PR | ● |
| 41 | Rail Pressure (psi) | 2,929→3,600 | 2,989→3,640 | AFTER marginally higher — consistent with richer lambda fueling demand | ● |
| 42 | STFT Bank 1 (%) | −5 to −6% at boost | +1 to +5% at high RPM | BEFORE over-correcting lean v1.07 map. AFTER normal lean-seeking behavior | ⚠ |
| 43 | STFT Bank 2 (%) | −4 to −6% at boost | 0 to +3% at high RPM | Same pattern as B1 — EQT v1.09 calibration correction clearly evident | ⚠ |
| 44 | TPS Actual (%) | 81.69% at WOT | 81.69% at WOT | Identical — Bosch MED17 torque-based: 81.69% delivers correct air mass at >2 bar MAP | ● |
| 45 | Torque Actual (ft-lb) | Peak 682 | Peak 667 (→699 corrected) | Raw BEFORE leads; IAT-corrected AFTER leads by +17 ft-lb | ● |
| 46 | Torque Limitation Source | 64 during spool → 0 | 64 during spool → 0 | Source 64 = max absolute MAP setpoint limiter. Not IAT. Not a fault. | ● |
| 47 | Torque Request at Clutch (ft-lb) | 674–675 ft-lb | 674–675 ft-lb | EQT torque request consistent at WOT — maps identical here | ● |
| 48 | Torque Value for Air Mass SP (ft-lb) | 421→755 progression | 421→755 progression | Internal ECU air-mass-to-torque — essentially identical between maps | ● |
| 49 | Torque at Clutch (ft-lb) | 0→755.24 ceiling | 0→755.24 ceiling | Both hit EQT-set 755.24 ft-lb clutch ceiling once spool completes | ● |
| 50 | Turbo Speed (RPM) | Peak ~194k RPM | Peak ~199k RPM | AFTER +5k RPM — improved inlet conditions increase mass flow per shaft rotation | ● |
| 51 | Wastegate Duty Base (%) | 76.84→57% declining | 76.84→57% declining | Feedforward WGD base identical — EQT base strategy unchanged | ● |
| 52 | Wastegate Duty Final (%) | 95%→57% @ ~3,400 RPM | 95%→53% @ ~3,400 RPM | AFTER opens slightly earlier at transition — TiAL builds boost more aggressively | ⚠ |
| 53 | Wastegate Duty Integral (%) | 0 throughout spool | 0 throughout spool | No integral wind-up — correct feedforward+proportional regime, both logs | ● |
| 54 | WGD Proportional (%) | 38–56% @ 2,000–2,700 | 55–60% @ 2,000–2,700 | KEY FINDING: AFTER higher WGD-P = TiAL M800 developing greater backpressure faster | ⚠ |
| 55 | Wheel Speed FL (mph) | 28–98 mph | 29–104 mph | Front-rear delta confirms normal RWD traction behavior in both logs | ● |
| 56 | Wheel Speed RL (mph) | 28–98 mph | 30–104 mph | AFTER reaches 104 vs 98 mph before throttle lift — longer effective pull | ● |