QUICK START
- The driver sends you a link like
https://lmu-pitwall.pages.dev/?ws=wss://...trycloudflare.com/ws. Open it in Chrome or Edge.
- Look at the bottom-left LED. CONNECTED = good. If DISCONNECTED, the driver's tunnel isn't up — radio them.
- Press F11 for full-screen.
- If the URL changes mid-race (the driver restarted their tunnel), press
⚙ CONNECTION and paste the new one.
SCREEN LAYOUT
- Header — track · car · driver · class · weather · session clock.
- Left column (VITALS) — gear, RPM, throttle/brake/clutch, steering, speed.
- Middle column (TIRES + CAR STATUS) — 4 wheels with temps + fuel/water/oil/stint.
- Right column (TIMING TOWER) — position, lap times, sectors with deltas, gaps, flag strip.
- Far-right column (CLASSES + MAP) — full multiclass standings and live track map with every car.
TIRE TEMPERATURE COLOURS
| Colour | Range | State |
|---|
| Dark blue | < 60 °C | Cold, no grip — DO NOT ATTACK |
| Blue | 60-80 °C | Warming up, building grip |
| Green | 80-100 °C | Optimal — peak grip |
| Yellow | 100-115 °C | On the limit |
| Red | > 115 °C | Overheating — degradation, possible blistering |
The 3 segments inside a tire = inner / center / outer shoulder. Asymmetric heat = setup hint (camber/toe issue).
LAP TIMES COLOUR CODE
| Colour | Meaning |
|---|
| Cyan | Current lap (running) |
| White | Last completed lap |
| Magenta | Session best |
| Green delta | Improved vs personal best |
| Red delta | Lost time vs personal best |
WHAT TO RADIO (TYPICAL CALLS)
Fuel running low
- FUEL card turned orange → "Pit window opens in 3 laps, fuel."
- FUEL card red + blinking, or FUEL! flag lit → "Box this lap, fuel critical."
Tires degrading
- All 4 yellow / WEAR below 40% → "Manage tires, save the rears."
- Any red → "Tires gone, box for new set."
Engine hot
- WATER > 105 °C → "Engine hot, lift on straights."
- OIL > 130 °C → "Box immediately, oil critical."
Faster class catching up (blue flag)
- On the MAP a red dot (Hypercar) approaches your yellow GT3 from behind.
- → "Hypercar 5 seconds behind, blue flag coming."
- When clear → "Track ahead clear, push."
Competitor pits
- In CLASSES table the row near yours shows PIT.
- → "P2 in pit, you gain position next sector."
Pace dropping
- LAP TIMES — BEST stable but LAST drops 0.5-1.5 s lap after lap.
- → "Pace dropping, tires going, plan stop in N laps."
STATUS OVERLAYS
| What you see | What it means | What to do |
|---|
| Yellow AWAITING TELEMETRY | Driver in pit garage / menu | Normal — wait. If > 5 min, radio. |
| Red AWAITING SERVER | Driver's tunnel is dead | Radio driver to restart their cloudflared/ngrok window. |
| Red CANNOT REACH SERVER | WebSocket URL is stale | Click ⚙ CONNECTION, paste new URL from driver. |
| Latency stuck at 0 ms | Connection frozen | Refresh with Ctrl+R. |
| Track map empty | Driver just went on track | Wait one lap, map will draw itself. |
HOTKEYS
| F11 | Toggle full-screen |
| Ctrl + R | Reload page |
| Ctrl + Shift + R | Hard reload (if UI looks broken) |
| Esc | Close any modal |
| ? button (footer) | This guide |
| ⚙ CONNECTION button | Change WebSocket URL |
PIT JOURNAL (KEEP A NOTEBOOK)
The dashboard shows live data but does not store history. A good strategist also logs by hand:
| LAP | LAP TIME | FUEL after | TIRE TEMP avg | NOTES |
|---|
| 47 | 3:31.124 | 72.4 L | 92 °C | First lap of stint |
| 48 | 3:30.612 | 69.8 L | 96 °C | S2 +0.3 vs best |
| 49 | 3:30.998 | 67.2 L | 98 °C | Yellow at Tertre |
This builds your sense of stint trend across the race.