McLaren 765LT Tuning Guide — Best Setup for FH6

The 765LT is McLaren doubling down on everything they learned from the Senna and the 720S, then shaving off 80kg and cranking the wick to 765 horsepower. That "LT" badge is not marketing fluff — the car has titanium exhaust, carbon fibre seats straight out of the Senna, thinner glass, and even a polycarbonate rear window to shed grams. The result is a 1,229kg missile with a 4.0-litre twin-turbo V8 that revs like it has a personal vendetta against straights.

What really sets the 765LT apart from the regular 720S is the chassis tuning. McLaren lengthened the car by 57mm, widened the front track, and completely reworked the suspension geometry with motorsport-derived components. The Proactive Chassis Control II hydraulic suspension ditches conventional anti-roll bars entirely and uses interconnected dampers — on the road this means the car stays impossibly flat through corners while maintaining compliance over bumps. In FH6, the physics engine does a shockingly good job of translating this feeling into the game.

I have put hundreds of laps into this car across every Mexico circuit and what I can tell you is this: at S2 998, the 765LT is one of the most forgiving high-downforce cars in the game. It will understeer if you get lazy with your corner entry, and the rear will absolutely step out if you get on the throttle too early, but once you find the balance point, nothing in the class stays with it through mid-corner. My setup below is all about neutralising that low-speed push while keeping the rear planted enough that you can trust the car at 300km/h sweepers.

Best Tuning Setup — S2 998 Track Build

Tire Pressure — 32.5/31.5 PSI

The 765LT is stupid light for an S2 car — 1,229kg is closer to a Miata with a body kit than a supercar — and that low mass means it does not need the 28-30 PSI range you would run on a heavier front-engined car. I run 32.5 up front to keep the contact patch tight under heavy braking into corners like the Playa Azul hairpin. The rear at 31.5 gives just enough sidewall flex to let the rear tires bite coming out of second-gear corners without overheating. Go below 31 on the rear and you will find the tyres cooking themselves within three laps on a hot circuit.

Final Drive — 3.50

Stock gearing on the 765LT is too tall for S2 road racing — you spend half the lap waiting for the revs to climb in third and fourth. A 3.50 final drive tightens up every gear and puts you smack in the meat of the torque curve between 5,000 and 7,500 RPM through the twisty sections. You lose about 15km/h of theoretical top speed but gain roughly half a second per corner exit, and on a circuit like the Horizon Mexico circuit with 14 corners, that adds up fast. The 7-speed SSG shifts so fast that the slightly shorter gearing does not feel frantic on straights either.

Camber — -2.8 Front / -2.2 Rear

Mid-engined cars load the rear tyres heavily under acceleration out of corners, and the McLaren's rear weight bias makes this even more pronounced. I run -2.8 up front because the 765LT turns in with so much bite that the outside front tyre rolls over significantly — that extra negative camber keeps the full contact patch on the road mid-corner. The rear at -2.2 is a compromise: any more and you lose straight-line traction under power, any less and the rear slides progressively into oversteer on long sweepers. This split gives you that beautiful neutral drift angle through the Carretera Chase section without the snap-oversteer that plagues lesser setups.

Anti-Roll Bars — 35 Front / 32 Rear

The 765LT has an incredibly stiff carbon tub, so you do not need ARBs as high as you would on a steel-chassis car. 35 up front is enough to kill the low-speed understeer that the stock setup has in first and second-gear corners. 32 at the rear keeps the car flat under lateral load without making it so stiff that the inside rear tyre lifts under power. If you go stiffer than 35 on the front bar, the car starts pushing wide on corner entry at circuits like the Estadio Circuit, and nobody has time for that.

Springs — 850 Front / 790 Rear (lb/in)

These spring rates are aggressive but the Proactive Chassis Control II system in the real car translates to extremely capable damping in the game, so you can get away with more spring rate than you think. 850 up front handles the aero load when the wing is producing peak downforce at 250km/h — without it, the nose would bottom out on the high-speed compression at the bottom of the mountain descent. The 790 rear is intentionally softer because you want weight transfer to the rear under acceleration, and on a RWD car with 765hp, you need all the mechanical grip you can get putting power down.

Ride Height — 9.5 Front / 9.0 Rear

A slight forward rake of half an inch shifts the aero balance slightly rearward at speed, which helps stability on fast circuits. 9.5 inches up front keeps the splitter off the kerbs — the 765LT sits low enough stock that going lower will have you bottoming out on the raised kerbs at the Horizon Festival circuit and losing all your momentum. The 9.0 rear is as low as I would go before the diffuser starts scraping on compression. This is a track weapon, not a stance build for the festival car park.

Rebound Damping — 10.5 Front / 9.5 Rear

Rebound controls how fast the suspension extends after compression — basically how quickly the tyre gets pushed back onto the road. 10.5 up front means the nose settles quickly after braking, giving you immediate turn-in response. Too much more and the front end skips over mid-corner bumps rather than absorbing them. The 9.5 rear keeps the rear tyres in contact with the road over crests — and on the Mexico map, there are crests everywhere. If you are running the volcano sprint, you might want to back the rear rebound off by another 0.5 to handle the aggressive elevation changes.

Bump Damping — 6.5 Front / 6.0 Rear

Bump damping is the unsung hero of a good track tune — it controls how the suspension compresses when you hit a kerb or a bump. 6.5 front means the suspension absorbs kerb strikes without upsetting the chassis, which is critical for the Playa Azul chicane where you have to cut the second kerb to get a good exit. The 6.0 rear keeps the back end from skipping sideways when you clip the inside kerb on corner exit. Go much higher and you will feel the car chattering over every imperfection on the road surface.

Aero — Rear Wing 85%

The 765LT carries an active rear wing that deploys under braking, but for S2 circuit racing I lock it at 85% downforce. This gives you enough rear grip at speed to take the fast sweeper on the Horizon Mexico circuit flat out without lifting, while not creating so much drag that you get eaten alive on the main straight. At 85%, the balance between front mechanical grip and rear aero grip is nearly perfect — the car rotates on the brakes without the rear trying to overtake the front.

Brake Balance — 50% Front / 120% Pressure

Mid-engined cars have a natural tendency to rotate under braking thanks to the rearward weight distribution, so I keep the brake balance at an even 50% front — any rearward bias and the car will try to swap ends under hard braking into tight hairpins. 120% pressure gives you the stopping power this car deserves without locking up under trail braking. The carbon ceramics on the 765LT are already monstrous in real life, and in the game running 120% pressure leverages that without crossing into ABS intervention territory.

Differential — Rear Accel 75% / Decel 45%

The 765LT is RWD only — no front diff to worry about — so the rear diff is doing all the work. 75% acceleration lock means when you get on the power, both rear tyres hook up together instead of spinning the inside rear uselessly. This is crucial for corner exit on a car with this much torque. 45% decel lock gives you stability under braking — the rear wheels stay locked together enough that the rear does not wander under heavy braking, but not so much that the car refuses to rotate into corners. If you are running on a wet circuit, drop the accel lock to 65% to prevent snap oversteer when the boost comes on.

Class Comparison

Best Race Types

Tuning Share Codes

I will update this section with share codes as the community dials in their setups. If you have a 765LT tune you are proud of, the share code system in FH6 makes it easy to distribute — just save your tune, grab the code from the Creative Hub, and drop it in the comments.

Common Tuning Mistakes

1. Running Too Much Rear Downforce

The biggest mistake I see with 765LT builds is cranking the rear wing to 100% and calling it a day. Yes, the car feels planted, but at 100% wing you are giving up 10-15km/h on every straight against cars running sensible aero. The 765LT already has incredible mechanical grip from its suspension geometry — 85% wing is the sweet spot where you get the stability without the parachute effect.

2. Over-Stiffening the Rear Springs

People look at the 765LT's track credentials and think "stiffer = faster" and throw 900lb springs on the rear. This is a RWD car with 800Nm of torque — if the rear suspension is too stiff, the tyres cannot squat under acceleration and you will just spin through first and second gear. The 790lb rear rate I run is deliberately softer than the front for exactly this reason.

3. Ignoring the Final Drive Ratio

The stock gearing is genuinely bad for circuit racing — third gear is too long for tight corners and second is too short for medium-speed sweepers. If you change nothing else on this car, change the final drive. A 3.50 ratio transforms the car from "this feels sluggish" to "this feels like a race car."

4. Too Much Negative Camber on the Rear

More than -2.5 degrees of rear camber on a RWD car is a trap. It looks fast on the spec sheet and the telemetry says you have more lateral grip, but what the telemetry does not show is that you are losing straight-line traction on corner exit — and on a 765hp RWD car, corner exit traction is everything. Stay at -2.2 or below.