Description
To get around Portland International Raceway (PIR) fast in the NASCAR O’Reilly Auto Parts Series car (formerly the Xfinity Series car), you must master heavy braking zones, execute aggressive curb-striking, and manage rear wheel spin. These heavy, high-horsepower stock cars handle brutally on a flat, 1.97-mile road course
Qualifying Tips
- Hit your marks consistently throughout the entire lap.
- Brake later than race pace, but still smooth..
- Don’t slide the rear — even one slide ruins the lap.
Race Strategy Tips
- Save tires early. Portland eats rear tires.
- Hit your marks.
- Brake in a straight line.
Race Setup
A balanced, race-ready setup built for high-speed stability, consistent long-run pace, and strong corner-exit speed as the tires begin to wear.
The race setup is designed to remain predictable in traffic while giving the driver enough versatility to move between lanes, manage dirty air, and maintain momentum throughout a fuel run.
Qualifying Setup
A faster, more aggressive setup designed to maximize aerodynamic efficiency, short-run grip, and single-lap speed.
Setup Notes
Helpful notes from our builders covering driving feel, preferred racing lines, throttle application, dirty-air behavior, and what to expect as the run develops.
Portland rewards drivers who can stay smooth, manage brakes, and adapt as the tires wear. Hit the track with a setup built to deliver speed, stability, and the confidence needed to race from the bottom to the wall with Precision Speed Solutions.
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