Aug 16-17, 2026
Day 7 — Thermostat Replaced & Validation Testing
2 logs analyzed · 109 minutes of logged data · 10 stall/restart events detected
Good progress
A new thermostat resolved the cooling plateau that had persisted since day 4 — peak coolant fell from a 213–215 °F ceiling to 196 °F, with the radiator fan finally cycling on and off instead of running continuously. This day's testing also captured the first direct evidence of piston ring seating: manifold vacuum improved measurably after the engine's first hard revs within the same log. Further validation and load/WOT tuning passes are still planned.
859
Avg idle RPM (session-wide)
07Log-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.
C-Start-1.mlgLOW CRANK VOLTAGE 0.0V
New thermostat installed. Peak coolant dropped from the prior 213-215°F ceiling, and the fan began cycling on/off instead of running continuously.
2026-08-17_19_46_04.mlgLOW CRANK VOLTAGE 0.0V
Day 7 validation testing. 951±48 RPM settled idle, 196°F peak coolant, and the first measured evidence of piston ring seating (vacuum improved after the first hard revs). Not the final validation run — further testing followed on Day 8.
* 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.