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Marek Lubieniecki

@m_lubieniecki • 1,663 subscribers

Simulation & optimisation engineer Robotics · Aerospace · Motorsport · AI

Shorts

2026 Monza won't be the flat-out Monza we know. Even in qualifying, with a full battery and only a 5 MJ/lap recharge limit, there won't be enough energy to sustain full power down the straights. Cars will deploy hard at the start of each straight, then slowly lose speed until the next braking zone. About 3 MJ of that 5 MJ can actually be recovered under braking - the rest has to come from on-throttle harvesting. Sim lap time: 1:23.53, +4.7s vs. 2025's pole. Exact number will depend on how much aero drag/downforce each team's setup carries. #F1Tech #ItalianGP

2026 Monza won't be the flat-out Monza we know. Even in qualifying, with a full battery and only a 5 MJ/lap recharge limit, there won't be enough energy to sustain full power down the straights. Cars will deploy hard at the start of each straight, then slowly lose speed until the next braking zone. About 3 MJ of that 5 MJ can actually be recovered under braking - the rest has to come from on-throttle harvesting. Sim lap time: 1:23.53, +4.7s vs. 2025's pole. Exact number will depend on how much aero drag/downforce each team's setup carries. #F1Tech #ItalianGP

383,542 görüntüleme

What does Verstappen mean when he says Silverstone is now "constantly flat"? I ran the 2026 lap through my optimizer to find out - and it might back him up. From T5 to T15, you may not need to brake at all - if you time the MGU-K recovery to superclip and feed the battery. 🧵

What does Verstappen mean when he says Silverstone is now "constantly flat"? I ran the 2026 lap through my optimizer to find out - and it might back him up. From T5 to T15, you may not need to brake at all - if you time the MGU-K recovery to superclip and feed the battery. 🧵

347,443 görüntüleme

Shanghai’s opening complex (T1–T4) is a tightening spiral where the car turns almost 270° before the exit. Balancing grip and power through this section is where drivers can make a real difference - and it’s also why it’s tricky to model. Here's how my model approaches it:

Shanghai’s opening complex (T1–T4) is a tightening spiral where the car turns almost 270° before the exit. Balancing grip and power through this section is where drivers can make a real difference - and it’s also why it’s tricky to model. Here's how my model approaches it:

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To find the fastest lap around an F1 track, you wouldn't start with a 3D map of the circuit. Instead you reduce the whole thing to two numbers that change as you drive: how hard you're cornering, and how much room you have. 🧵

To find the fastest lap around an F1 track, you wouldn't start with a 3D map of the circuit. Instead you reduce the whole thing to two numbers that change as you drive: how hard you're cornering, and how much room you have. 🧵

229,897 görüntüleme

You cannot simulate Zandvoort's Turn 13 correctly if you treat it as flat. Not "less accurate" - literally impossible. Real 2025 data: the car does 209 km/h through the apex, banked at 18°. Model the same corner flat and it only holds ~127 km/h - an 82 km/h gap from tilting the track alone. Zandvoort has two such corners, Turn 3 and Turn 13, both banked up to 18°. Two separate mechanisms create that gap - gravity pulling you toward the corner, and inertia getting redirected into the track by the tilt. 🧵

You cannot simulate Zandvoort's Turn 13 correctly if you treat it as flat. Not "less accurate" - literally impossible. Real 2025 data: the car does 209 km/h through the apex, banked at 18°. Model the same corner flat and it only holds ~127 km/h - an 82 km/h gap from tilting the track alone. Zandvoort has two such corners, Turn 3 and Turn 13, both banked up to 18°. Two separate mechanisms create that gap - gravity pulling you toward the corner, and inertia getting redirected into the track by the tilt. 🧵

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Verstappen said Spa's sector 2 isn't fun in the 2026 cars - "F3 power" through there. So I simmed an LMP2 (~65 HP more than F1 fom ICE) against real F1 Q3 telemetry. At the end of the last straight, where the brakes go on, they arrive at nearly the same speed: 297 vs 292 km/h. #F1 #LMP2 #BelgianGP

Verstappen said Spa's sector 2 isn't fun in the 2026 cars - "F3 power" through there. So I simmed an LMP2 (~65 HP more than F1 fom ICE) against real F1 Q3 telemetry. At the end of the last straight, where the brakes go on, they arrive at nearly the same speed: 297 vs 292 km/h. #F1 #LMP2 #BelgianGP

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Spa isn't a race track. It's a rollercoaster. 🎢 Every lap the car climbs to +54 m above the start line, then plunges ~100 m down to the lowest point of the circuit, 48 m below where it began. That elevation isn't scenery. It's shaping the lap, and in 2026 more than ever. 🧵

Spa isn't a race track. It's a rollercoaster. 🎢 Every lap the car climbs to +54 m above the start line, then plunges ~100 m down to the lowest point of the circuit, 48 m below where it began. That elevation isn't scenery. It's shaping the lap, and in 2026 more than ever. 🧵

106,969 görüntüleme

We know the MGU-K harvests energy under braking. But how much can an F1 car actually recharge in one corner? Austria T3 is an interesting case: ~319 → 73 km/h, steeply uphill - and even here, the MGU-K recovers less than 30% of the car’s removed energy. 🧵

We know the MGU-K harvests energy under braking. But how much can an F1 car actually recharge in one corner? Austria T3 is an interesting case: ~319 → 73 km/h, steeply uphill - and even here, the MGU-K recovers less than 30% of the car’s removed energy. 🧵

79,315 görüntüleme