Master Momentum and Survival at Circuit des 24 Heures du Mans - 24H
How to maximize consistency, safety, and maximizing exit speed for the Ray FF1600 (Formula Ford) at Circuit des 24 Heures du Mans - 24H.
November 8, 2025
1) TRACK SNAPSHOT
- Location & layout: Le Mans (Sarthe, France). 13.626 km / 8.467 mi. Clockwise. Official turn count often cited as ~38 (ACO); iRacing HUD may number fewer by grouping kinks. This guide consolidates into 20 practical corners for teaching.
- Character:
- Mix of permanent circuit and public roads: variable surface, road crown, and bumps.
- Elevation: crest under Dunlop Bridge, downhill to Esses; slight banking at Indianapolis; flat, grippy new asphalt near Ford Chicane in the sim.
- Curbs: Generally flat on Mulsanne chicanes; tall/abrasive “sausage” at Ford Chicanes; Dunlop chicane inside has aggressive inner curbing; Porsche Curves kerbs are usable but punish over-attack.
- Three corners that matter most for lap time (momentum/exit):
- T7 Tertre Rouge — exit speed sets your entire Mulsanne Straight; most important throttle-on of the lap.
- T11 Mulsanne Corner — huge braking; clean late apex and strong exit feed the Indianapolis run.
- T14–T17 Porsche/Corvette sequence — long, flowing; steering discipline and minimum speed here swing delta massively.
2) INCIDENT & TRACK-LIMIT HOTSPOTS (Rookie Priorities)
- Dunlop Chicane (T2–T3): Stack-ups Lap 1. Over-optimistic dives, inner sausage curb launches, and rejoin chaos if you miss the apex.
- Esses (T4–T6): Off-camber feel at pace; rear can rotate unexpectedly on a lift; 1x on exit if you run wide.
- Tertre Rouge (T7): Easy 1x or slowdown if you open exit too far; do not cut the inside green/astro turf.
- Mulsanne Chicanes 1 & 2 (T8–T10): Slowdown if you slice inside; braking variations with wind/draft cause rear-end shunts.
- Mulsanne Corner (T11): Huge closing speeds; out-braking yourself = gravel and unsafe rejoin. Stay off the marbles.
- Indianapolis/Arnage (T12–T13): Side-by-side pinches; Arnage exit lures throttle-too-early spins and 1x.
- Porsche Curves to Corvette/Karting (T14–T18): Wall proximity; over-commit leads to snaps or understeer to off-tracks.
- Ford Chicanes (T19–T20): Big slowdowns if you straight-line too much; exit wall on S/F; pit-entry confusion causes incidents.
- Safe rejoin notes:
- Use escape asphalt at Dunlop and Ford Chicanes; stop, check relative, rejoin parallel to traffic.
- If you overshoot Mulsanne Corner or Arnage, rejoin only when the lane is clear; do not turn across the racing line.
- Pit entry/exit:
- Entry: Far right before Ford Chicane commitment. Signal early; stay right of the solid line. Speed limit begins at the cone/line at pit entry (assume 60 km/h / 37 mph limit; verify in-session).
- Exit: Long blue blend line on right of pit straight. Stay right until the end of the line; oncoming traffic is fast and may be unsighted over the slight crest.
3) RACECRAFT PLAN (Ray FF1600)
- Drafting zones:
- Massive: Start/finish → Dunlop; Tertre Rouge → both Mulsanne chicanes; Second chicane → Mulsanne Corner; Arnage → Porsche Curves entry.
- Clean passing spots (preferred side/setup):
- Dunlop Chicane: Inside move with early lift+downshift; defend exit by not pinching.
- Mulsanne Chicane 1 & 2: Get overlap before 150 m; choose inside, brake straight and early; prioritize the second part’s exit.
- Mulsanne Corner: Classic out-brake to inside; brake in a straight line, square it, V it off the corner.
- Arnage: Inside, very late apex; maintain exit so you’re not re-passed.
- Ford Chicane: Only if you’re clearly alongside before turn-in; otherwise set up S/F draft.
- Defensive lines (without killing exit):
- Hold center-right on straights to discourage late lunges; return to normal outside braking line only if safe.
- Into chicanes: A gentle middle defense is enough; do not double-move or park apex; roll speed to protect exit against the over-slow divebombers.
- Start/first-lap survival:
- Brake at +30–50 m earlier than normal at T1/T2. Expect chain reactions.
- Biggest pileups: Dunlop Chicane, Mulsanne Chicane 1, Mulsanne Corner, Porsche Curves entry.
- Escape routes: Dunlop runoff straight-ahead; both Mulsanne chicanes have paved escapes—use them if boxed in.
4) DRIVING LINE & MARKERS (Corner-by-corner)
Note: We group minor kinks and focus on 20 teaching corners. “Min Speed” are rookie targets in mph. Adjust with delta.
| T# | Name | Priority* | Approach Ref | Brake Point | Trail? | Apex Type | Min Speed (rookie target) | Throttle On | Exit Trackout | Kerb Use | Risk/Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Dunlop Curve (R) | Med | Pit straight, count bridge | Small lift or dab pre-bridge | Light | Late/brush | 85–90 | As soon as settled | L to R | Minimal | Cold tires: lift earlier |
| 2–3 | Dunlop Chicane (L–R) | Med | 200/150 boards | 125–150 m | Yes | Double late | 40–50 | Between apex 2 and exit | Full R exit | Avoid inner sausage | Lap 1 chaos |
| 4–6 | Esses (R–L–R) | Med | Downhill entry | Small brake before T4 | Feather | Late/flow | 60–70 | Squeeze post T5 | R exit | Skim flat curbs | Lift rotation only |
| 7 | Tertre Rouge (R) | High | Fence posts/100 board | ~75–100 m (light) | Gentle | Late, open exit | 70–75 | Before apex or at apex | Use all L exit | Inside curb mild | 1x if too wide on exit |
| 8 | Mulsanne Chicane 1 | Med | 200/150 signs | 130–150 m | Yes | Late on second | 45–50 | After 2nd apex | Full exit | Flat curbs ok | Slowdown if cut |
| 9 | Mulsanne Chicane 2 | Med | 200/150 signs | 130–150 m | Yes | Late on second | 45–50 | After 2nd apex | Full exit | Flat curbs ok | Wind affects braking |
| 10 | Mulsanne Corner (R) | High | 200/150/100 boards | 160–190 m | Yes, long | Very late/V-shape | 35–40 | Late, straighten car | Full L exit | Minimal | Easy gravel off |
| 11 | Indianapolis (L bend) | Med | Left kink boards | Lift or brush | No | Early brush | 85–90 | Reapply mid-corner | Stay mid | No curb | Sets Arnage line |
| 12 | Arnage (R) | High | Marshal posts, 100 board | 120–140 m | Yes | Very late | 30–35 | Late, straight wheel | Full L exit | Minimal | Snap oversteer on throttle |
| 13 | Porsche Entry (L) | High | Entry boards/100 | Small brush | Feather | Early | 70–75 | Gentle build | Mid-R | Skim | Don’t pinch |
| 14 | Porsche Right | High | Visual flow | No or tiny | No | Late/brush | 70–72 | Maintain | Use R | Minimal | Wall close |
| 15 | Porsche Left | High | Visual flow | No or tiny | No | Late/brush | 68–70 | Maintain | To R | Minimal | Understeer scrub |
| 16 | Corvette Right | Med | Wall on L | Small brake | Short | Late | 55–60 | After apex | Full L | Kerb ok | Don’t early throttle |
| 17 | Karting L–R | Med | Blue barriers | Small brake | Short | Double late | 45–50 | After R apex | Full R | Avoid big curb | Keep car straight |
| 18 | Ford Chicane 1 (L–R) | Med | 200/150 boards | 130–150 m | Yes | Late, roll | 40–45 | After R apex | Full L | Avoid sausages | Pit entry on R prior |
| 19 | Ford Chicane 2 (R–L) | Med | Immediate | Carry from 18 | Yes | Late, patient | 35–40 | After final L | Use S/F curb | Avoid sausages | Wall on exit |
| 20 | T1 Next Lap Setup | Low | S/F line | N/A | N/A | N/A | N/A | Full | Far R | N/A | Draft setup |
(*Priority = effect on next straight)
5) BRAKING & GEARS (Rookie Baselines)
- First laps references:
- Dunlop Chicane: 125–150 m.
- Tertre Rouge: gentle brush ~75–100 m.
- Mulsanne Chicanes: 130–150 m; extend to 160 m if in deep draft.
- Mulsanne Corner: 160–190 m (big stop).
- Arnage: 120–140 m.
- Porsche/Corvette/Karting: mostly lifts/brushes; keep the car balanced, brake in a straight line where possible.
- Gears (Ray FF1600, assumption 4-speed):
- Dunlop Chicane: 2nd.
- Esses: 3rd.
- Tertre Rouge: 3rd (short-shift if needed).
- Mulsanne Chicanes: 2nd.
- Mulsanne Corner: 2nd.
- Indianapolis: 4th with a lift; then 2nd for Arnage.
- Porsche Curves: 4th → lift to balance; down to 3rd for Corvette; 2nd for Karting/Ford if needed.
- Validate by: avoid over-rev, check delta; if bogging, use one gear lower; if wheelspin on exit, try one higher/earlier upshift.
- Brake release:
- Use long, gentle trail into rotation corners (Dunlop chicane, Mulsanne Corner, Arnage).
- Linear brush with quick release for fast sweepers (Porsche entry/right/left) to preserve balance.
- Mid‑stint adjustments:
- As tires heat and track rubbers: extend braking by 5–10 m; slightly earlier throttle at exits with straighter wheel.
- Headwind on Mulsanne = brake later; tailwind = earlier, more conservative.
6) CAR CONTROL CUES (Momentum Car Emphasis)
- Rotation method:
- Primarily trail brake into the slow corners (Dunlop chicane, both Mulsanne chicanes, Mulsanne Corner, Arnage).
- Use lift-to-rotate in medium/fast (Esses, Porsche sequence).
- Steering-angle discipline:
- Unwind early at every exit; straight steering before full throttle, especially at Arnage and Ford Chicane.
- Porsche Curves: small inputs, hold a steady slip; avoid sawing the wheel.
- Throttle application patterns:
- Be decisive once pointed: progressive but continuous application.
- Tertre Rouge and Porsche entry: commit to throttle once set—partial lifts cost more than a slightly slower apex.
7) CURBING, BUMPS & SURFACE CHANGES
- Attack:
- Mulsanne chicanes: skim flat entry/exit curbs to straighten; avoid cutting inner raised sections.
- Corvette: mild curb is okay to rotate.
- Avoid:
- Ford Chicanes sausages: they will bounce the Ray and cause slowdowns/1x or damage.
- Dunlop inner sausages: can launch or unsettle on Lap 1.
- Surface/bump notes:
- Public-road crown on Mulsanne and into Mulsanne Corner—stay off the outer marbles/brake on the flattest part.
- Indianapolis has slight banking; you can lean on it but beware of sudden grip change onto Arnage’s flatter surface.
- Porsche Curves surface is relatively smooth but punishes over-commitment near walls.
8) SETUP / DRIVER ADJUSTMENTS
- FIXED (assumed):
- Driver adjustments:
- Brake bias start: 60–62% forward. Move rearward by 0.5–1.0% if the car won’t rotate under trail; move forward if you’re locking rears into Arnage.
- Starting tire pressures: as provided by fixed set; focus on smooth inputs for even temps.
- FFB: Lower a touch to avoid clipping in big stops and to feel micro-slips in Porsche Curves.
- Shifting: Short-shift on exits with wheelspin; avoid money-shifts—be deliberate.
- Driver adjustments:
9) TELEMETRY & METRICS TO TRACK
- Sector breakdown (use 4 logical chunks):
- Start/Finish → Tertre Rouge exit (launch + Dunlop/Esses technique).
- Tertre Rouge → Mulsanne Corner exit (draft management + chicane exits).
- Mulsanne Corner exit → Arnage exit (big stop + traction).
- Arnage exit → Finish (Porsche/Corvette/Karting/Ford flow).
- Rookie targets:
- Tertre Rouge min: 70–75 mph.
- Mulsanne Corner min: 35–40 mph.
- Porsche entry min: 70–75 mph.
- Lap-to-lap variance: aim ±0.5 s over a 5-lap run without 1x.
- What to inspect on traces:
- Brake release timing: smooth lengthening trails into slow corners; avoid spikes.
- Throttle pickup delay: reduce delay after apex where wheel is straight.
- Steering saturation: watch for long plateaus at high angle in Porsche Curves—means scrub; aim for smaller, steadier angles.
10) PRACTICE PLAN (45 minutes)
- 0–10 min: Out-lap + references
- Goals: Find 200/150/100 boards at Dunlop, both Mulsanne chicanes, Mulsanne Corner, Arnage, Ford Chicanes. Warm tires gently. 0 incidents.
- 10–25 min: Corner families focus
- Work 3 key areas: Tertre Rouge exits (log min speed), Mulsanne Corner braking/exit (no lockups), Porsche entry flow (min steer angle).
- Success: Hit target mins within ±3 mph, no off-tracks.
- 25–35 min: 2×5‑lap safe race-pace runs
- Aim: Consistency and line repeatability in traffic margins.
- Success: Each 5-lap run with ≤±0.5 s variance and 0x.
- 35–40 min: Pit in/out practice
- Enter at pace, no speeding, correct lane discipline.
- Success: 3 clean entries/exits; hold blend line on exit.
- 40–45 min: Draft practice + cool-down
- Practice timing runs into both Mulsanne chicanes; brake +20 m earlier in heavy draft.
- Success: 0 contact, 0x, clean passes or abandon early if not clear.
11) QUICK CHECKLIST (pre‑race)
- Brake bias start point: 61% forward (safe starting value; adjust ±1% as feel dictates).
- First‑lap brake margins: +40 m at T1/T2; +30 m at Mulsanne Chicane 1.
- Two “free time” fixes:
- Open the wheel earlier at every exit; add throttle only as you unwind.
- Prioritize Tertre Rouge exit: sacrifice entry for a clean, early throttle-on.
- Two safety traps to avoid:
- Out-braking yourself at Mulsanne Corner—live to fight the next straight.
- Hitting sausage curbs at Ford Chicanes—slowdown or damage risk.
- Fuel note: Official rookie-length FF1600 races typically no-stop. If pit stops are relevant in your session, plan total laps × per-lap usage + 1 lap buffer (assumption; verify consumption in practice).
12) ONE‑PAGE SUMMARY
- Brake earlier than you think at T1/T2 and the first Mulsanne Chicane on Lap 1.
- Tertre Rouge is the lap: late apex, early smooth throttle, all exit.
- Use draft to set passes before braking; brake 20–40 m earlier in slipstream.
- Mulsanne Corner: straight-line brake, very late apex, V the corner, clean exit.
- At Arnage: be patient—late apex and straighten the wheel before throttle.
- Porsche Curves: tiny inputs, steady throttle; don’t fight understeer with more steering.
- Avoid sausage curbs at Ford; skim flat curbs at Mulsanne chicanes.
- Keep the car straight on throttle application; short-shift if spinning up.
- Bias around 61% forward; move as needed to balance rotation vs stability.
- Consistency > hero laps: target ±0.5 s runs with 0x to build SR and racecraft.