Tyre pressures at Silverstone International
The Silverstone International loop, drawn bold on the venue's mapped tarmac; the loop's measured length agrees with the layout's published lap length. Track outline © OpenStreetMap contributors (ODbL).
How hard a circuit works each corner of the car shows up as tread temperature, and temperature is what sets pressure. GripCalc carries corner heating figures for Silverstone International as a starting point: how much hotter each tyre runs over the session's base temperature, from the layout's mix of corners and load. They pre-fill the calculator when you pick the circuit, and your own pyrometer readings refine them from the first session.
| CORNER | RUNS HOTTER BY, °C |
|---|---|
| Left front | +2.0 |
| Right front | +1.5 |
| Left rear | +3.0 |
| Right rear | +2.5 |
ESTIMATED — class-based starting values over an 85°C session base, derived from this layout's type (direction, speed profile, load), and shared with circuits of similar character rather than measured here. Not gospel: enter your own pyrometer figures after a session and they take precedence.
Silverstone International, on paper
| Location | West Northamptonshire, United Kingdom | OSM |
| Opened | 1947 | WIKIDATA |
| Lap as mapped | 2.978 km | MEASURED |
| Longest straight | ≈776 m | DERIVED |
| Corners | 13 | DERIVED |
| Left / right | 6 / 7 | DERIVED |
| Direction | clockwise | OSM |
OSM — the sections mappers have named on this venue's tarmac: National Pit Straight · Hamilton Straight · Club · Brooklands · Wellington Straight · Luffield · Copse · Woodcote · Chapel Curve · Maggotts · Hangar Straight · Aintree · Farm Curve · The Loop · Stowe · Vale · Village · Abbey · Ice Hill · Kick Plate · Becketts · Limestone Curves
Lengths are measured from the OpenStreetMap geometry drawn above, on the loop verified against this layout’s published lap length; the longest straight is derived from the same line and is approximate. Section names are the venue's, and can belong to any of its layouts.
Silverstone is home for Box3 Motorsport, and every one of their track days runs here, Grand Prix and National. You drive their race-prepared Porsche, not your own car: small-group open sessions, a briefing and a debrief, the team watching from the pit wall all day, in-car video and passenger hot laps if you want them, and a private garage on the premium dates.
A full UK licence is the only requirement — no racing licence, no experience, nothing to bring — and the car is part of the day. It does not have to stop there: Box3 races a Ginetta G55 GT4, and for the right driver with the right budget a seat alongside Nick Casey can open up.
What Silverstone International asks of a tyre
Silverstone International measures 2.98 km on the map, run clockwise, with 13 corners counted along that line — 6 left, 7 right. That is a corner every 229 m, so the tread is asked for something almost continuously: heat arrives early and keeps arriving, and pressures climb through a session faster than the morning's ambient reading suggests. Its longest straight runs about 776 m, far enough to cool the tread before the stop at the end of it, so a hot pressure taken in the pit lane understates what the tyre saw mid-lap.
DERIVED — length, corner count, hands and straight measured from the mapped lap drawn above. Corner counting is a judgement (a double apex can be read as one corner or two), so treat these as this line's reading of the circuit, not a series' official figures.
The International layout uses the Grand Prix circuit's southern half, keeping Becketts' high-speed direction changes and the Hangar straight. It drives like a condensed GP lap: big lateral energy through the complex, then genuine cooling time down the straight before the Stowe braking zone.
Becketts loads both fronts in quick succession; compare left and right averages
The straight cools the tread; expect inner zones to read cooler than the lap feels
Stowe's braking zone works the fronts on top of their cornering load
A 992 GT3 on Cup 2 R at Silverstone International
Published hot target 30.5 / 32.0 psi at 92°C tread, on a 15°C morning, with the corner figures above: cold set 21.5 / 21.5 front, 22.6 / 22.6 rear. A different car, tyre or morning moves every number, which is what the calculator is for.
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