GSC Billet R1 Camshafts – Toyota 2JZ-GTE – GSC7030R1
Race-Bred Camshaft Set for Street, Drift & Road Course Builds
The GSC Power-Division Billet R1 Camshafts are engineered for the Toyota 2JZ-GTE, delivering fast spool, crisp throttle response, and strong low-to-mid RPM cylinder fill. Originally designed for stroker builds, the R1 profile also performs exceptionally well on stock stroke engines, making it a versatile choice for high-performance street cars, drift setups, and road racers.
Camshaft Specifications
| Camshaft | ADV Duration | Duration @ 1mm | Peak Lift | Center Line |
|---|---|---|---|---|
| Intake | 271° | 232° | 11.00mm | 108° |
| Exhaust | 273° | 234° | 11.00mm | 115° |
Performance Range
- Effective RPM Band: 4000–8500 RPM
- Horsepower Support: 800–1500 HP
- Idle Quality: Rougher than stock
Installation Requirements
- Upgraded valve springs required (GSC5064 or GSC5066 recommended)
- Shimless or shim-under bucket tappets required
- Cylinder head clearance must be verified for 11mm lift
- Minimum .020" / 0.5mm clearance from head casting is mandatory
Recommended Engine Setup
- Stroker or increased displacement engine suggested (not required)
- Ported cylinder head recommended for optimal flow
Fitment:
- 1993–1998 Toyota Supra Turbo 3.0L DOHC Inline-6 (2JZ-GTE)
- 1991–2000 Toyota Aristo 3.0L Twin Turbo Inline-6 (2JZ-GTE, Japan only)
- 1998–2005 Lexus GS300 (2JZ-GTE swap-compatible)
- 1992–2001 Toyota Soarer 3.0L Twin Turbo Inline-6 (2JZ-GTE swap)
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