The BTR Stage 3 Twin Turbo Camshaft V2 (BTR-TWINTURBOSTG3) is a hydraulic roller camshaft for GM LS-Series engines built for drag-strip-focused twin-turbo combinations. BTR designed this lobe to deliver more power and torque with less intake duration, and it is best suited to larger twin turbos (66mm or larger) paired with a 6.0L-or-larger combination capable of exceeding four-digit horsepower with good fuel and tuning.
- Part Number: BTR-TWINTURBOSTG3
- Application: GM LS-Series, twin-turbocharged, 6.0L+ combinations
- Camshaft Style: Hydraulic Roller
- Intake/Exhaust Lift: 0.618 in / 0.618 in
- Intake Duration @ .050": 226°
- Lobe Separation Angle (LSA): 115°
This camshaft is best suited to twin turbochargers of 66mm or larger paired with a 6.0L-or-larger combination. BTR recommends stepping down to its Stage 2 Twin Turbo camshaft for setups running smaller 58-65mm turbochargers.
FAQ
What size turbos is the Stage 3 Twin Turbo camshaft designed for?
BTR designed it for larger twin turbochargers of 66mm or larger paired with a 6.0L-or-larger combination.
What are the lift, duration, and LSA specs?
The BTR-TWINTURBOSTG3 has 0.618 in of intake and exhaust lift, 226 degrees of intake duration at .050 inch, and a 115-degree lobe separation angle.
What if I'm running smaller 58-65mm turbochargers?
BTR recommends stepping down to its Stage 2 Twin Turbo camshaft for smaller 58-65mm turbo setups.
What is this camshaft's intended use?
It's a drag-strip-focused twin-turbo grind designed for combinations that can exceed four-digit horsepower with good fuel and tuning.

