GSC Billet S1 Camshafts – Toyota 2JZ-GTE VVTi – GSC7031S1
Street-Optimized Camshaft Set for Turbocharged VVTi 2JZ Builds
The GSC Power-Division Billet S1 Camshafts are designed for the Toyota 2JZ-GTE VVTi, offering a refined upgrade for builds running single turbos larger than 57mm. These cams maintain low-end drivability while delivering consistent top-end gains, producing a remarkably flat torque curve and proven horsepower increases of 40–70 WHP depending on turbo size and tuning.
Camshaft Specifications
| Camshaft | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
|---|---|---|---|---|
| Intake | 269° | 230° | 9.90mm | Variable |
| Exhaust | 269° | 232° | 9.90mm | 114° |
Performance Range
- Effective RPM Band: 3500–8000 RPM
- Horsepower Support: 500–1000 WHP
- Idle Quality: Slightly rougher than stock
Installation Notes
- Single valve spring upgrade required due to increased lift and duration
- Minimal modifications needed – re-shimming and proper tuning recommended
Built for Boosted Street Power
If you're upgrading to a larger single turbo and want a cam profile that enhances midrange and top-end power without compromising drivability, the S1 camshafts are a proven solution. Precision-machined and performance-tested, they’re ideal for street builds that demand more from the VVTi-equipped 2JZ platform.
Fitment:
- 1997–2005 Toyota Supra Turbo 3.0L DOHC Inline-6 (2JZ-GTE VVTi, Japan only)
- 1998–2005 Lexus GS300 (2JZ-GTE VVTi swap-compatible)
- 1997–2004 Toyota Aristo VVTi 3.0L Twin Turbo Inline-6 (2JZ-GTE VVTi)
- 1998–2001 Toyota Soarer 3.0L Twin Turbo Inline-6 (2JZ-GTE VVTi swap)
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