Phoenix International Raceway has joined Daytona in the ranks of tracks making major surface modifications for the 2011 season, but the Sprint Cup Series won't have a chance to test out the new track until the fall.
PIR will be modified after the second Cup race of the season on February 27th. And while the dogleg in the backstretch is going to still exist, it will just be in a different form.
The dog leg will be pushed out 95 feet from it's current location and the radius of the corner will tighten to keep the track at its current 1 mile configuration. Plus, the track will be adding progressive banking to the corners, even though it will remain fairly flat.
The banking between turns 1 and 2, as well as the apex of the dogleg will be 10-11 degrees and turn 4 will be banked at 8-9 degrees. The track says that the changes will result in an average speed uptick of two to three miles per hour.
The frontstretch will also be widened too. Remember that ridiculous wreck in the Nationwide Series that almost blocked the whole track? Yeah, that might have had something to do with that decision.