A well-chosen camshaft package can improve response and usable power without sacrificing everyday drivability. The Tomei Poncam Camshaft Set (part number TA301A-NS05A) is a matched intake and exhaust pair designed for the Nissan RB26DETT in the Skyline R32 and R33 GT-R as well as the Stagea 260RS, featuring a milder 254° duration and 9.15 mm lift profile suited to street and mild performance applications.
Tomei’s VALC profile (Velocity, Acceleration, Lift, Control) is engineered to open the valves more effectively and increase the area under the lift curve relative to many conventional designs of similar duration. This supports improved airflow and a noticeable gain in performance while maintaining controlled valve motion that helps limit unnecessary valvetrain stress. The more conservative specification makes these cams a practical upgrade for builds seeking better response and power without moving into aggressive high-lift territory.
These Poncam 254-9.15 shafts are a popular choice for R32/R33 GT-R and Stagea 260RS owners looking for a refined step up from stock while retaining strong street manners. Proper installation and appropriate engine management adjustments are recommended to realize the full benefit. At Terra Firma Automotive, we supply this genuine Tomei Poncam Camshaft Set as an accessible performance upgrade for earlier RB26DETT platforms. Choose Terra Firma Automotive for authentic Japanese camshafts that support balanced, usable power gains on the R32, R33, and Stagea 260RS.
- Genuine Tomei Poncam Camshaft Set
- Part Number: TA301A-NS05A
- Application: Nissan RB26DETT
- Duration: 254°
- Lift: 9.15 mm
- Matched intake and exhaust set
- VALC profile (Velocity, Acceleration, Lift, Control)
- Milder specification for strong street drivability
- Improved airflow and response versus stock
- Controlled valve acceleration and closing characteristics
- Suitable for street and mild performance builds
- Practical upgrade from factory camshafts
- Trusted Japanese camshaft engineering
- Available from Terra Firma Automotive
Compared to standard profile camshafts of the same lift, VALC profile camshafts are able to then then off-set the difference for even greater lift/performance gains.
Strict phase angle tolerances minimize the risk of valve timing issues and ensures each valve opens and closes precisely. Tomei research showed that some camshafts from other manufacturers had more than 5 degrees difference in the phase angle! This makes it near impossible to achieve the correct valve timing.
- Optimized 'velocity' and 'acceleration'.
- Designed for high power setups.
- Optimizes engine performance.
- Higher lift than other profiles of the duration.
- Reduced stress/wear on the valve train.
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