Penske's Will Power is used to sweeping the timesheets at IZOD IndyCar Series street and road course events, and while there was a slight stumble in practice 1 at St Peterburg, Florida on Friday morning, normal service was restored in the afternoon as Power's 1:01.4467s put him 0.1785s ahead of reigning champion Ryan Hunter-Reay.

As the 1.8-mile, 14-turn temporary street circuit continued to rubber in and with the warmer mid-70s afternoon temperatures and overcast skies, the second practice quickly saw faster speeds than the earlier session. KV Racing's Simona de Silvestro was immediately ahead of Ryan Hunter-Year's morning benchmark and went on to end the day an impressive third fastest.

It also meant that drivers were pushing harder and harder, with an increasing number of minor incidents as a result: James Jakes had a quick off at turn 8, Justin Wilson rubbed the barrier in turn 14 and Scott Dixon found the run-off at turn 4, while Alex Tagliani and Sebastian Saavedra joined the list of visitors to the turn 10 run-off as they sought the limits of one of the best overtaking place on the circuit.

Josef Newgarden was sidelined with a gearbox issue in the Sarah Fisher Hartman Racing car, but Graham Rahal was looking in ruder health after the Rahal Letterman Lanigan team got to grips with the throttle problem that had left him 20 per cent down in power in the morning.

Practice 2 times

1. #12 Will Power Penske (C) 105.457mph 1:01.4467s (15 laps)
2. #1 Ryan Hunter-Reay Andretti (C) 105.152mph 1:01.6252s + 0.1785s (14 laps)
3. #78 Simona de Silvestro KV Racing (C) 105.042mph 1:01.6895s + 0.2428s (18 laps)
4. #22 Oriol Servi? Panther/DRR (C) 104.914mph 1:01.7650s + 0.3183s (16 laps)
5. #14 Takuma Sato AJ Foyt (H) 104.905mph 1:01.7703s + 0.3236s (18 laps)
6. #3 Helio Castroneves Penske (C) 104.879mph 1:01.7853s + 0.3386s (13 laps)
7. #11 Tony Kanaan KV Racing (C) 104.84mph 1:01.8087s + 0.362s (16 laps)
8. #27 James Hinchcliffe Andretti (C) 104.51mph 1:02.0039s + 0.5572s (19 laps)
9. #55 Tristan Vautier Schmidt (H) 104.439mph 1:02.0459s + 0.5992s (19 laps)
10. #25 Marco Andretti Andretti (C) 104.368mph 1:02.0877s + 0.641s (16 laps)
11. #16 James Jakes RLL (H) 104.343mph 1:02.1030s + 0.6563s (20 laps)
12. #77 Simon Pagenaud Schmidt (H) 104.325mph 1:02.1134s + 0.6667s (18 laps)
13. #83 Charlie Kimball Ganassi (H) 104.186mph 1:02.1962s + 0.7495s (16 laps)
14. #15 Graham Rahal RLL (H) 103.913mph 1:02.3596s + 0.9129s (24 laps)
15. #5 EJ Viso Andretti-HVM (C) 103.909mph 1:02.3622s + 0.9155s (19 laps)
16. #19 Justin Wilson Dale Coyne (H) 103.874mph 1:02.3833s + 0.9366s (19 laps)
17. #10 Dario Franchitti Ganassi (H) 103.832mph 1:02.4086s + 0.9619s (19 laps)
18. #7 Sebastien Bourdais Dragon (C) 103.819mph 1:02.4166s + 0.9699s (20 laps)
19. #9 Scott Dixon Ganassi (H) 103.675mph 1:02.5031s + 1.0564s (14 laps)
20. #98 Alex Tagliani BHA (H) 103.664mph 1:02.5098s + 1.0631s (20 laps)
21. #67 Josef Newgarden SFHR (H) 103.629mph 1:02.5305s + 1.0838s (10 laps)
22. #6 Sebastian Saavedra Dragon (C) 103.584mph 1:02.5581s + 1.1114s (20 laps)
23. #4 JR Hildebrand Panther (C) 103.011mph 1:02.9057s + 1.459s (15 laps)
24. #20 Ed Carpenter Ed Carpenter (C) 102.626mph 1:03.1420s + 1.6953s (25 laps)
25. #18 Ana Beatriz Dale Coyne (H) 101.302mph 1:03.9670s + 2.5203s (16 laps)

Total laps: 439