"We're getting there," added Franchitti, who will start the May 26 race from the outside of the front row. "We're making some progress. Any track time we can get is beneficial. ... We're trying to get everything we can get now and keep working on the car."
Others felt a much greater sense of urgency.
Indy rookie Stanton Barrett, hoping to fill one of the remaining 11 positions in the 33-car field, was focused getting comfortable enough on the 2.5-mile oval to do a solid, four-lap qualifying run when time trials reopen Saturday.
"We just keep working on it," said Barrett, a NASCAR journeyman who also works part-time as a stuntman in movies and TV. "Work on setup and get stability and grip and speed, that's all we've been working on in different combinations.
"... The idea is to try to stay patient and not try and do anything too quick or fast."
By midafternoon, Barrett had run 35 laps with a top speed of 218.499 mph.
The big question for the drivers still hoping to make the race by being one of the fast 11 on Saturday, or by bumping out the slowest qualifiers in Sunday's final round of time trials, is how much speed will they need?
Townsend Bell, who didn't get into his KV Racing Technology car until Thursday, was fastest among the non-qualified drivers in the early going Friday at 220.951 mph. But he expects it will take more than that to make the race.
"I really believe we can do some solid 223s in qualifying but, certainly, it depends on the weather and the track conditions tomorrow," said Bell, who hopes to join teammates and first-week qualifiers Mario Moraes and Paul Tracy in the lineup. "The speed should be there."
The slowest of the first-week qualifiers was Davey Hamilton at 221.956.
The veteran of eight Indy starts said he feels "fairly comfortable" with that speed, but adds, "I kind of wish we'd have been able to go out again and put up a little higher number."
Tomas Scheckter, getting his ride with Dale Coyne Racing on Friday morning, said he wasn't too concerned about the speed it will take to make the field, just with getting used to his car as quickly as possible.
Scheckter was reunited with engineer Bill Pappas, with whom he worked while driving for Target Chip Ganassi Racing in 2003, the year he finished fourth, his best showing in seven Indy starts.