411A,
According to the ntsb report here for CAL 603, of March 1, 1978:
http://www.airdisaster.com/reports/ntsb/AAR79-01.pdf
V1 was 156 kts, but the capt on (on page 39 of the NTSB findings) rejected below that at 152 kts. He did everything correctly the board found. The aircraft was accellerating and reached about V1+3 it appears from the graph. They comment that they believe it would have flown even with three blown tires.
Regards,
pac