Editing Z31/engines php (section)

=== VG30 Series Specifications ===

![VG30E cutaway](images/Engine/VG30E_cut_away.jpg)

==== USDM United States Domestic Market ====

===== VG30E Specs: =====

| Spec | Value | Notes |
|---|---|---|
| Displacement | 2960 cc (181 cu. in) | |
| Bore and Stroke | 87.0 X 83.0 | Can be bored to 90mm safely. Breakthrough at 3.78" (per defrag010 of Z31performance.com) |
| Compression Ratio | 9.0:1 | |
| Horsepower | 160hp at 5200 rpm | 165hp at 5200 rpm on late W-series (1988-1989) |
| Torque | 24.0 kg-m (173ft-lbs) at 4000 rpm |

===== Early 1984 to 5/1987 VG30ET USDM Specs: =====

1984-1987 turbo cars came with a Nissan made [http://www.turbobygarrett.com/turbobygarrett/products/turbochargers.html Garrett T3 Turbocharger].

The engine was either type A or type B (1984 to April 1987), with press fit wrist pins.

| Spec | Value | Notes |
|---|---|---|
| Displacement | 2960 cc (181 cu. in) | |
| Bore and Stroke | 87.0 X 83.0 | |
| Compression Ratio | 7.8:1 | Pre W-series |
| Horsepower | 200hp at 5200 rpm | |
| Torque | 1.4 kg-m (227ft-lbs) at 3600 rpm |

===== Late 5/1987-1989 VG30ET USDM Specs: =====

1988+ turbo cars came with a Nissan made [http://www.turbobygarrett.com/turbobygarrett/products/turbochargers.html Garrett T25 Turbocharger].

The W-series engines featured redesigned water jackets, fully floating piston wrist pins, and more power.

| Spec | Value |
|---|---|
| Displacement | 2960 cc (181 cu. in) |
| Bore and Stroke | 87.0 X 83.0 |
| Compression Ratio | 8.3:1 |
| Horsepower | 205 hp at 5200 rpm |
| Torque | 1.4 kg-m (227ft-lbs) at 3600 rpm |

==== JDM Japanese Domestic Market ====

===== VG30ET Specs: =====

The VG30ET was the same as the USDM motors but made about 5 less horsepower due to emission standards.

| Spec | Value |
|---|---|
| Displacement | 2960 cc (181 cu. in) |
| Bore and Stroke | 87.0 X 83.0 |
| Compression Ratio | 7.8:1 |
| Horsepower | 195 hp at 5200 rpm |
| Torque | 31.5 kg-m (227 ft-lbs) at 3600 rpm |

==== European Market ====

===== VG30ET Specs: =====

The European models made 230 hp (170 kW) in turbo form due to a better [[Z31/camspecs|camshaft profile]] (Nismo camshafts). Some models were also equipped without catalytic converters.