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SomersF1 · Jul 16, 2026

2026 Belgian Grand Prix tech journal & document cache

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Matthew Somerfield · SomersF1

This article will be updated throughout the weekend to include more documention as it lands, along with links to any additional articles that I post in relation to updates that the teams might have.

I do hope you’re enjoying the content I’m providing here on substack this year, if so please be sure to subscribe in order you get it delivered straight to your inbox.

First up we have the circuit map, which shows us the five straight-line mode zones, where active aero can be deployed.

The red SM indicators are the zone lengths under normal conditions and the blue SM indicators denote the zone lengths when the track is considered to be in a low grip state.

The four SLM zones are on the pit straight, between turns 1 & 2, between turns 4 & 5 (shortened in the wet), between 15 & 16 and between 17 & 18.

The overtake detection and activation zones are denoted in green, with the detection point before T19 and the activation zone before the finish line.

Pirelli are supplying the C2, C3 and C4 compounds, with minimum starting pressures for the dry tyres of 28.0psi at the front and 28.0psi at the rear indicated before the action gets underway.

Historically the tyre manufacturer has sought to adjust these after Friday’s Free Practice running, so I’ll let you know if that changes in due course.

On the topic of Pirelli, here’s their preview infographic which serves to give us some additional information that can be handy, such as the average pit stop loss, which they have at around 19 seconds.

Circuit Characteristics

Circuit Length 7.004 km Race Laps 44

Race Distance 308 km

Distance from Pole to First Braking Zone 150m

Pole Position Side Right

Pit Lane Length Under Speed Limit Control 386m

Drive-Through Time at 80 km/h 17s

Race Characteristics

Safety Car Probability 40% Average Track Temperature 26.1 °C

Average Ambient Temperature 19.4 °C Highest Track Temperature 39.3 °C

Highest Ambient Temperature 24.7 °C Wet Session Probability 47%

*Information supplied by Mercedes

Next up we have details regarding power and energy limits, as they’ll change from race-to-race, with 8.5MJ of recharge available during the race, except when Overtake is active, as this rises to 9MJ.

Qualifying has a maximum recharge of 7MJ.

Read the original on somersf1.substack.com

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