Stuart Gough was the only driver in Walter Hayes Trophy heat six qualifying to dip into the 1m11s in a session dominated by a six-minute yellow flag at Brooklands.
With the rain now abating, the Silverstone National circuit started to develop a drier line and the 19-car field made the most of that during the last qualifying session of the morning.
Gough, in his Kevin Mills Racing Spectrum, was in the lower reaches of the top 10 for the majority of the session before a blistering lap with less than a minute on the clock resulted in a 1m11.860s – leaping early pacesetter Oliver White.
To rub salt in White’s wounds, Josh Fisher, who was running behind White for the majority of the session, put in a faster lap on his penultimate run – a 1m12.095s – to jump onto the front row.
White’s 1m12.528s was enough to retain third, three tenths ahead of Cliff Dempsey Racing’s Jamie Thorburn.
Fifth went to Abdul Ahmed, who was just 0.004s faster than David McCullough.
Part-time rally driver Robert Barrable took seventh despite having to go into the pits early on in the session after he spun and collided with Hamish McAllister.
Barrable got back out in the final minutes, but McAllister was stuck in the Brooklands gravel and will start 11th.
David Cobbold was the fastest of the Pre93 runners in eighth, with Henry Chart and Miles Griffiths rounding out the top 10.
Top Historic driver was 15th-placed Xavier Michel in his Crossle 32F.