Aug 11, 2026
Day 3 — Trigger Offset Bracketing
3 logs analyzed · 44 minutes of logged data · 20 stall/restart events detected
The trigger offset detour
A verified-good offset (265°, confirmed against the isolated TDC mark) was second-guessed after a check against an unlabeled reference mark on the crank pulley, and changed to 235 — which measurably degraded starting behavior across the day's remaining tests. tfire11 (265°) ran with zero stalls; tfire12 and tfire13 (both 235°) accumulated 16 and 4 stall events respectively. This was resolved the following week by re-verifying against the trusted TDC mark and landing on the final value of 268°.
1289
Avg idle RPM (session-wide)
03Log-by-Log Breakdown
Session-wide statistics computed across each full log. These pool every idle-qualifying sample in the file, so they run higher than the narrow steady-state windows cited in the final project report — that's expected; this view shows total session variability, not just the best segment.
tfire11.msl
globalTriggerAngleOffset=265, Fixed 0°. No stalls across 223s — the cleanest of the three configurations tested this day.
MSL (limited channels)
Format
tfire12.msl
Offset=235, Fixed 16°. ~13 start attempts, repeated stalls, plateaus scattered 1000-1935 RPM.
MSL (limited channels)
Format
tfire13.msl
Offset=235, Dynamic mode. Worst of the three — multiple failed catches, never sustained more than ~10s.
MSL (limited channels)
Format
* On stall/restart counting
Detected algorithmically as RPM dropping below 300 for a sustained period followed by a subsequent rise — a reasonable proxy for restart events, not a precise fault classifier. Treat as directionally accurate, not exact.
