Tyre pressures at Snetterton 300

The Snetterton 300 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 Snetterton 300 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.

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.

Snetterton 300, on paper

OSM — the sections mappers have named on this venue's tarmac: Bomb Hole · Coram · Bentley Straight · Riches · Murrays · Montreal · Senna Straight · Brundle · Firmans · Agostini · Hamilton · Nelson · Oggies · Palmer · Williams

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.

What Snetterton 300 asks of a tyre

Snetterton 300 measures 4.76 km on the map, run clockwise, with 12 corners counted along that line — 5 left, 7 right. Corners come about every 397 m, so the lap is more about carrying speed between them than surviving them back to back. Its longest straight runs about 800 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.

Snetterton 300 pairs two long straights, the Bentley and the Senna, with proper stops at Brundle, Agostini and Murrays, plus the fast Coram sweep feeding the final chicane. Straights cool the tread and the big braking zones heat the fronts, so the tyre's lap is a cycle of recovery and punishment rather than constant load.

A 992 GT3 on Cup 2 R at Snetterton 300

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 / 21.6 front, 22.6 / 22.7 rear. A different car, tyre or morning moves every number, which is what the calculator is for.

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