The Kelford 231‑B2 Stage 2 High‑Lift Camshaft Set is designed for Nissan GT‑R R35 VR38DETT engines running upgraded turbochargers and increased boost levels. Featuring symmetrical intake and exhaust cam profiles, this camshaft set delivers strong mid‑range torque and significantly improved top‑end power.

Positioned above Stage 1 camshafts but below full race profiles, the 231‑B2 is ideal for aggressive street and motorsport applications such as track days and roll racing, where sustained high‑RPM performance is required.

Camshaft Specifications

• Intake Duration: 274°
• Exhaust Duration: 274°
• Intake Cam Lift: 10.60mm
• Exhaust Cam Lift: 10.55mm

Key Features

• Complete intake and exhaust camshaft set
• Stage 2 symmetrical high‑lift cam profiles
• Strong gains in mid‑range and high‑RPM power
• Designed for upgraded turbocharger setups
• Suitable for aggressive street and motorsport use
• Precision‑engineered by Kelford Cams

When Is the Kelford 231‑B2 the Right Choice?

The 231‑B2 camshaft set is best suited to VR38DETT builds that require increased airflow and power beyond Stage 1 cams, without moving into highly aggressive race profiles.

• Engines with upgraded turbochargers (typically 48–54mm range)
• High‑performance street and track‑day GT‑Rs
• Roll racing and circuit racing applications
• Builders seeking balanced power delivery with strong top‑end performance

Important Notes

• Upgraded valve springs are required
• Kelford recommends the KVS38‑BT valve spring kit
• Professional installation and ECU tuning are strongly recommended

231‑B2 vs Other Kelford Cam Options

• More aggressive than 231‑A Stage 1 cams
• Symmetrical profile compared to the split‑lobe 231‑S6
• Excellent choice for turbo‑upgraded street and track builds
• Less extreme than Stage 3 and drag‑focused cam profiles

Application

• Nissan GT‑R R35
• Engine: VR38DETT

The Kelford 231‑B2 Stage 2 High‑Lift Camshaft Set is a proven upgrade for GT‑R owners looking to significantly increase performance while maintaining a usable and responsive powerband.