Manual · Live

The /live page is your phone-propped-next-to-the-TV dashboard: real-time chassis state while you drive. The instrument cluster runs across the top; four corner panels sit around a center column. Each corner shows per-tire grip plus that wheel's spring and damper; the center column carries your inputs, the chassis attitude and power readouts, and the G-G dot.

G-G scatter · chassis

Center column · below the input bars and attitude readouts

Round disc at the foot of the center column. Plots the car's instantaneous lateral G against longitudinal G — the so-called "friction circle" or "G-G plot," a pro-tool standard. The scatter cloud shows the envelope of how the car has been driven over the last ~20 seconds.

How to read it
  • X axis — lateral G. Left of center = cornering left; right = cornering right.
  • Y axis — longitudinal G. Up = braking, down = accelerating. Matches the in-game G meter's convention (force on the driver).
  • Inner dashed ring at 1 g, outer rim at 2 g.
  • Amber dots — last ~20 s of history, fading from old (faint) to recent (brighter). ~200 dots, decimated to ~10 Hz so density carries the shape.
  • Bright green dot — current instantaneous position. Updates at 60 Hz.
  • Lat · long readout in the corner, in g.
Reading the shape
Smooth arc from top to side Trail-braking — releasing brake as steering loads up.
Vertical line (top-to-bottom) Straight-line braking + acceleration without cornering.
Horizontal blob Sustained cornering with neither throttle nor brake (coast / steady-state).
Cloud fills the whole disc Aggressive driving using all of the available envelope.
Tight near-center cluster Smooth / cautious / cruising lap.
Cloud only on one side Mostly turning one direction (a tight infield, hairpin loop, etc.).
See also The per-tire friction circles below answer the same question at each wheel rather than at the chassis level. On /replay the same G-G scatter rebuilds as you scrub through a finished lap.

Friction circle · per tire

CornerPanel — small disc inside each of the four corner panels

Same idea as the chassis G-G scatter, but plotting slip at one tire rather than acceleration at the whole car. Answers "is this specific tire past its grip limit right now?"

How to read it
  • X axis — slip angle (lateral). Negative = slipping one way, positive = the other.
  • Y axis — slip ratio. Up = lockup (wheel slowed past road speed, braking too hard), down = wheelspin (wheel turning faster than road, accelerating past grip).
  • Dashed inner ring at 0.7 — the "working zone" boundary. Inside = under-worked, outside = engaged in the grip envelope.
  • Solid outer ring at 1.0 — friction limit. Outside this ring the tire is past grip; the Past grip chip lights up.
  • Amber trail — recent ~0.5 s of slip.
  • Center dot color — reflects the combined-slip value (greens through amber to red as you approach the limit).
Reading the shape
Dot stays inside the 0.7 ring Tire under-worked at this moment — not at the grip limit.
Dot sits between the 0.7 and 1.0 rings Working in the grip zone — what you want most of the time in a corner.
Dot passes outside the 1.0 ring Past grip — the Past grip chip flares; could be intentional (drift, rally) or unwanted.
Trail stretches up Braking past grip on this tire — lockup. The Lockup chip will follow.
Trail stretches down Wheelspin under power. The Wheelspin chip will follow.
Trail stretches left or right Lateral slip in that direction — the tire's sliding sideways rather than gripping.
See also The diagnostic chips above each friction circle (Bottoming · Past grip · Lockup · Wheelspin · Understeer · Oversteer) link to the /tune category that addresses each.

Spring & damper · per corner

CornerPanel — the coil + vertical bar on the outboard edge of each corner panel

Two different things share this strip, and they're tuned separately. The coil shows spring travel — where the suspension is sitting right now (a position). The bar beside it shows damper velocity — how fast it's moving (a rate). The spring is set by spring rate and ride height; the damper is set by bump and rebound stiffness. Same corner, different levers — hence the two labels, each linking to its own /tune page.

How to read it
  • SPRING coil — anchored at the base (the wheel on the road). As the corner loads, the top (chassis) cap descends and the coils bunch toward the bottom — the body squatting onto the wheel.
  • Dashed line at the top — the full-droop reference. The gap between it and the coil's top is how far this corner has travelled.
  • Coil colorgreen normal, amber past 80 % travel, red past 95 %. The red band at the base is the bump stop; the whole coil pulses when bottoming. The cm readout below is travel.
  • DAMPER bar — zero in the middle. Rebound fills up (REB, spring extending), bump fills down (BMP, spring compressing). The mm/s readout is signed: + = bump, − = rebound.
  • Bar color & ticks — faint ticks mark 25 and 50 mm/s. slow < 25, medium 25-50, fast > 50 mm/s (kerb hits, rapid weight transfer). Lightly smoothed so it's readable rather than strobing every frame.
Reading the shape
Coil near full length, top near the dashed line Light load / droop — corner unloaded (cresting, inside wheel mid-corner, braking-unloaded rear).
Coil bunched, color amber/red Heavy compression — weight piled on this corner; red means near the bump stop. Consider spring rate / ride height.
Bar mostly small / near center Slow damper movement — smooth surface, steady-state corner. Where you want to live most of the time.
Bar slamming to the fast zone Fast damper events — kerbs, bumps, sharp transitions. Bump vs rebound bias points at bump vs rebound damping.
See also The whole-lap aggregate of the damper bar is the Damper velocity histogram on /replay (distribution of this exact signal over the lap), and the position × velocity scatter ties the coil's travel to the bar's velocity.