GSC Billet R1 Camshafts – Toyota 2JZ-GTE VVTi – GSC7031R1
Responsive Camshaft Set for Drift, Road Race & Street Builds
The GSC Power-Division Billet R1 Camshafts are designed for the Toyota 2JZ-GTE VVTi, offering fast spool and quick throttle recovery—ideal for drift, road course, and high-performance street applications. Originally developed for stroker engines seeking maximum cylinder fill at lower RPMs, these cams also perform exceptionally well on stock stroke setups.
Camshaft Specifications
| Camshaft | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
|---|---|---|---|---|
| Intake | 271° | 232° | 11.00mm | Variable |
| 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 must be clearanced 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
Built for Versatile Power Delivery
Whether you're building a responsive street car or a competitive drift machine, the R1 cam profile offers fast spool, strong midrange, and reliable top-end performance. These billet cams are precision-machined for durability and repeatability, making them a smart choice for VVTi-equipped 2JZ builds.
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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