Michael Dunlop set the fastest speed of this week's Isle of Man TT practices in perfect conditions on Friday night, lapping at 131.50mph.
The Buildbase BMW Motorrad rider was just 1.4 seconds outside John McGuinness's outright lap record.
Dunlop topped the Superbike leaderboard by six seconds from Padgett's Honda pilot Bruce Anstey, who recorded a lap of 130.86 earlier in the week.
Tyco TAS Suzuki rider Guy Martin was third quickest on 130.10.
Lincolnshire rider Gary Johnson (Kawasaki) moved to the top of the Superstock timings at 130.21 on Friday, closely followed by compatriot Dean Harrison (128.62) and Michael Dunlop (128.41).
Johnson also set the fastest Supersport time of the week with 125.93 on a Triumph in the final session.
Michael Dunlop is second fastest overall at 124.54, followed by brother William (124.47) and comeback man Keith Amor (124.36).
The first race of the week, the Superbike, is scheduled to blast off the start line at 11:00 BST on Saturday.