Master Momentum and Survival at Autódromo Hermanos Rodríguez - NASCAR
How to maximize consistency, safety, and maximizing exit speed for the Ray FF1600 (Formula Ford) at Autódromo Hermanos Rodríguez - NASCAR.
November 8, 2025
1) TRACK SNAPSHOT
- Location & layout: Mexico City, Mexico. NASCAR road course, approx. 3.4 km (2.1 mi), clockwise, 12 turns (assumed). Long front straight into a tight T1–3 complex; flowing mid-lap esses; tight stadium; Peraltada chicane feeding the long, banked Peraltada.
- Character: Very flat overall with minimal elevation. Peraltada has positive camber that rewards a committed arc. Surface is mostly smooth with occasional bumps under heavy braking (T1 zone) and near Peraltada entry. Curbs range from usable flat red/white to tall inner “sausage” anti-cuts in chicanes—these will unsettle the Ray FF1600.
- Three corners that matter most for lap time:
- Peraltada (final corner, T12): Longest straight follows — exit speed is king.
- T3 (end of T1–3 chicane): Sets speed into the short straight/flow — clean exit without wheelspin or push.
- First Esses commitment (T4–T5): Carrying speed through here preserves momentum for the entire mid-lap.
2) INCIDENT & TRACK-LIMIT HOTSPOTS (Rookie Priorities)
- T1–3 Chicane: Massive divebomb central. Easy 1x/slowdown by cutting inside sausages or missing the second apex. Brake earlier than you think on Lap 1.
- Esses (T4–T6): Off-tracks for cutting inside or running wide on exit. Over-attack leads to understeer and 1x.
- Stadium entry (T7): Narrow, with walls and low-speed rotation. Rear lock-ups cause spins and parked cars on apex.
- Stadium exit (T9): Pinch/understeer into outside wall or 1x over exit curb. Don’t throttle-stab.
- Peraltada entry chicane (T11): Anti-cut curbs; straight-lining risks slowdowns and damage.
- Peraltada exit (T12): Outside wall/off-track if you open steering too soon. Respect rear slip.
- Pit exit merge: You rejoin on the main straight; stay far right until the blend line ends. Do not swing left into traffic braking for T1.
- Pit entry: After Peraltada, pit-in is on the right. Commit early, stay right; speed limit line arrives quickly.
Safe rejoin guidance:
- T1 runoff: If you miss the apex, go straight, slow down off-line, rejoin parallel to traffic after the chicane.
- Stadium: If you loop it, hold brakes; wait for gaps — blind corner exits trap rejoiners.
- Peraltada: If you run wide, rejoin along the wall, parallel to racing line; don’t cut diagonally.
3) RACECRAFT PLAN (Ray FF1600)
- Drafting zones:
- Primary: Front straight. Use the tow to set up an inside pass into T1. Commit early; show the nose before the 150 board.
- Secondary: Short run after T3 to T4 — only if you had a superior T3 exit.
- Clean passing spots:
- T1 inside: Brake a touch later from a straight wheel, down to 2nd. Prioritize a tidy T3 exit after the move.
- Stadium entry (T7) outside-to-inside switchback: Force rivals narrow at T7, cut back for T8/9 overlap.
- Peraltada entry chicane (T11): Only if you’re clearly alongside — don’t compromise T12 exit.
- Defensive lines that preserve exit:
- T1: Mid-track brake, cover the inside, still rotate for a decent T3 exit. Don’t over-slow.
- Peraltada: Early middle-entry arc; do not hug inside too early — protect exit speed, not the apex.
- Start/first-lap survival:
- Brake +40–60 m earlier for T1; stay central to avoid either curb-punts or outside pinch.
- Expect stack-ups at T7 (stadium entry). Leave 1 car width to the inside to avoid chain reactions.
- Safe escape: In T1, straight-line to runoff if boxed; in stadium, stay stopped if spun — cars appear late.
4) DRIVING LINE & MARKERS (Corner-by-corner)
| T# | Name | Priority* | Approach Ref | Brake Point | Trail? | Apex Type | Min Speed (rookie target) | Throttle On | Exit Trackout | Kerb Use | Risk/Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T1 | Right of T1–3 Chicane | High | 200/150/100 boards | 150 m (L1: 170–180) | Long, gentle | Late, tight | 65–75 km/h (40–47 mph) | After curb settles | Left | Small entry curb only | Huge dive zone; keep wheels straight on initial brake |
| T2 | Left of Chicane | High | Inside bollards/curb | Modulate mid-chicane | Light brush | Late to open T3 | 60–70 (37–43) | Feather | Right | Avoid inner sausage | Don’t climb inner curb — slowdowns/damage |
| T3 | Right, Chicane Exit | High | Painted apex/exit curb | N/A | Tiny to rotate | Late, open quickly | 75–85 (47–53) | Just past apex | Full left | Exit curb okay | Critical exit — set up run to T4 |
| T4 | Right kink into Esses | Med | Fence/shadow on R | Lift or tiny brush | No or micro | Early, flowing | 120–130 (75–81) | Before apex | Left | Minimal | Keep it clean to not upset T5 |
| T5 | Left, first real Esse | High | Asphalt seam/100 board | Brief brush | Short trail | Late/brush | 110–120 (68–75) | At/just after apex | Right | Light apex curb | Keep steering free; no stabbing throttle |
| T6 | Right, Esse exit | Med | Tree/bridge/shadow | None or tiny lift | No | Early, carry | 120–130 (75–81) | At apex | Left | Minimal | Momentum! Let car breathe |
| T7 | Stadium entry Left | Med | 100 board on R | 100–90 m | Progressive | Very late, V | 55–65 (34–40) | After rotation | Right | Avoid inside bump | Easy to lock rears; straight-line brake |
| T8 | Tight Right (Stadium) | Med | Apex barrier | Minimal | Short | Late | 55–60 (34–37) | After apex | Left | No sausage | Patience; opens T9 |
| T9 | Left (Stadium exit) | High | Exit wall sightline | Light | Short | Late, open exit | 65–75 (40–47) | As you unwind | Right | Exit curb OK | Don’t clip exit wall on throttle |
| T10 | Kink/short chute | Low | Center line | None | No | N/A | 150+ (93+) | Full | Right | None | Set car for T11 brake |
| T11 | Peraltada entry chicane | Med | 150/100 boards R | 120–110 m | Medium | Late, squared | 80–90 (50–56) | After settle | Left | Avoid inner sausages | Don’t straight-line; slowdowns sting |
| T12 | Peraltada (final) | Very High | Outer wall/camber | Lift only or tiny brush | Minimal | Late, long arc | 135–150 (84–93) | As soon as stable | Full right to wall | Stay off inner bump | Exit speed is everything; don’t pinch |
(*Priority = effect on next straight)
5) BRAKING & GEARS (Rookie Baselines)
- First laps — references and gears:
- T1: Brake at 150 m (Lap 1: 170–180 m). 4th to 2nd. Long, smooth trail; keep the car straight early, then feed steering.
- T4/5 Esses: Typically hold 3rd; small lift/brush, no full brake once confident.
- T7 (stadium entry): 3rd to 2nd. Progressive brake to avoid rear lock; late apex.
- T11 (Peraltada chicane): 4th to 2nd. Medium trail to square the car before T12.
- T12 (Peraltada): Likely 3rd–4th depending on your run; tiny lift only when confident.
- Brake release: Favor long, gentle trail in slow corners (T1–3, T7–9, T11) to rotate the car without snapping.
- Mid‑stint adjustments: If fronts overheat/understeer, release brake earlier and roll more entry speed. If rears get lively, move brake bias +1–2% forward and shorten the trail.
- Gear validation: If you’re bogging on exit (flat throttle, no pull), drop one gear. If you’re over‑revving near apex or spiking wheelspin, use the taller gear. Use delta and RPM peaks to confirm.
6) CAR CONTROL CUES (Momentum Car Emphasis)
- Rotation method: Use light trail-brake at slow corners; in medium/high-speed esses, a brief, early lift is safer than steering more.
- Steering discipline: Aim to straighten hands early at exits (T3, T6, T9, T12). Every extra degree is free lap time lost to scrub.
- Throttle patterns:
- “Squeeze, don’t stab” out of T3, T7–T9.
- Commit early and smoothly in Peraltada; if you need a second lift, make it tiny and earlier rather than a big, late panic lift.
7) CURBING, BUMPS & SURFACE CHANGES
- Attack:
- Exit curbs at T3 and T9: safe if the car is straight.
- Light brushes in the esses (T5) are okay; keep the platform calm.
- Avoid:
- Sausage/anti-cut curbs in T1–3 and T11: they’ll launch the Ray FF and cause slowdowns.
- Big inside bumps at stadium apexes; they lift the inside rear and cause snap oversteer.
- Camber tricks:
- Peraltada’s positive camber supports more mid-corner speed than you think; trust the arc but maintain margin for the exit wall.
8) SETUP / DRIVER ADJUSTMENTS
- FIXED setup assumed.
- Driver adjustments:
- Brake bias start: 57% front (range 56–58%). If rear gets loose under braking, add +1–2% front.
- In-car tools: If available, tiny brake bias changes only. No diff/ARB on Ray FF1600.
- Tire management: One clean warmup lap; avoid sliding fronts in the first two laps to preserve grip.
- FFB: If clipping over sausage/bumps, reduce overall strength slightly to keep detail in trail-braking zones.
9) TELEMETRY & METRICS TO TRACK
- Sectors (example split plan):
- S1: Start/Finish to T3 exit (T1–3 complex).
- S2: T4 to T9 exit (esses + stadium).
- S3: T10 to Start/Finish (Peraltada chicane + Peraltada).
- Rookie targets:
- T3 min: 75–85 km/h (47–53 mph).
- First Esse (T5) min: 110–120 km/h (68–75 mph).
- Peraltada (T12) min: 135–150 km/h (84–93 mph).
- Lap-to-lap variance: aim for ±0.3–0.5 s over a 5-lap run.
- What to inspect:
- Brake traces: Smooth onset, long releases in slow corners; avoid double-stabs.
- Throttle pickup: Is it one clean squeeze or multiple on/off jabs? Clean is faster.
- Steering: Watch for saturation at exits (flat-topped steering trace = scrub). Earlier, gentler unwind to free speed.
10) PRACTICE PLAN (45 minutes)
- 0–10 min: Out-lap + reference hunt
- Goals: Identify 150/100 boards into T1 and T11; test T7 100 m board. Warm tires gradually.
- Success: No 1x; hit each brake point twice consistently.
- 10–25 min: Corner families focus
- Work T3, T5, T12. Log min speeds and exits (delta vs previous best).
- Success: Improve min speeds by 3–5 km/h without adding 1x.
- 25–35 min: 2×5‑lap race-pace runs
- Goals: Zero incidents, variance within ±0.5 s per run. Practice defensive mid-line into T1 once per run.
- Success: Two clean stints; repeatable T1/T12 references.
- 35–40 min: Pit in/out practice
- Goals: Enter at pace, no speeding; safe merge staying right to blend line end.
- Success: 3 clean entries/exits in a row.
- 40–45 min: Draft practice + cooldown
- Goals: One clean overtake into T1 from the tow, one defended corner without killing exit.
- Success: Execute pass with a clean T3 exit; cooldown lap — no brakes dragging.
11) QUICK CHECKLIST (pre‑race)
- Brake bias start point: 57% front (adjust 56–58% window).
- First‑lap brake margins: +40–60 m at T1; +15–20 m at T11.
- Two “free time” fixes:
- Unwind steering earlier at T3/T12 exits; let the car run wide.
- One smooth throttle squeeze per corner; eliminate micro-lifts past apex.
- Two safety traps to avoid:
- Clipping anti-cuts in T1–3 and T11 (slowdowns/crashes).
- Pinching Peraltada exit; give yourself a half-car width buffer.
- Fuel note: Likely no-stop sprints. Assumption: ~2.0 L/lap. For 15 laps: ~30 L + 2 L buffer. Adjust to session length.
12) ONE‑PAGE SUMMARY
- Brake early and straight for T1 on Lap 1; live to fight on the front straight.
- T3 and T12 exits decide your lap — protect exit speed over apex heroics.
- In the esses, lift early and small rather than adding steering; keep momentum high.
- Stadium entry (T7): late apex, V the corner, rotate on trail — no rear lockups.
- Avoid sausage curbs in T1–3 and T11; they ruin laps and break suspensions.
- Peraltada: trust camber, commit to an early, smooth throttle — don’t pinch the exit.
- Defensive mid-line into T1 is fine; prioritize a clean T3 exit after defending.
- Use the tow on the main straight; set passes up early and claim the inside by the 150 m board.
- Adjust brake bias on the fly (56–58%) to match tire feel and stint phase.
- Consistency target: ±0.5 s over 5 laps, zero 1x in practice stints.
