Main Page: Difference between revisions
CleanupBot (talk | contribs) Quick-reference specs corrected to 1986/1987 FSM values (capacities, thermostat, plugs, gearbox names, tires); uncited specs (power/torque, W-series row, filter part no., Nissan plug part nos.) removed; source note added |
CleanupBot (talk | contribs) Restore power/torque and W-series (8.3:1, T25) rows from xenonzcar engine/general-spec pages, worded as source; extend source note |
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{| class="wikitable" style="width:100%" | {| class="wikitable" style="width:100%" | ||
! colspan=" | ! colspan="4" | Engine specs | ||
|- | |- | ||
! Engine !! Displacement | ! Engine !! Displacement !! Power (US) !! Torque (US) | ||
|- | |- | ||
| VG30E (N/A) || 2,960 cc (180.62 cu in) | | VG30E (N/A) || 2,960 cc (180.62 cu in) || 160 hp @ 5,200 rpm (165 hp on late W-series, 1988–1989) || 173 lb·ft @ 4,000 rpm | ||
|- | |- | ||
| VG30ET (turbo) || 2,960 cc (180.62 cu in) | | VG30ET (turbo, 1984 – 5/1987) || 2,960 cc (180.62 cu in) || 200 hp @ 5,200 rpm || 227 lb·ft @ 3,600 rpm | ||
|- | |||
| VG30ET (turbo, W-series, 5/1987 – 1989) || 2,960 cc (180.62 cu in) || 205 hp @ 5,200 rpm || 227 lb·ft @ 3,600 rpm | |||
|} | |} | ||
| Line 23: | Line 25: | ||
| VG30E || 87 mm × 83 mm || 9.0:1 || V-6 OHC | | VG30E || 87 mm × 83 mm || 9.0:1 || V-6 OHC | ||
|- | |- | ||
| VG30ET || 87 mm × 83 mm || 7.8:1 || V-6 OHC, | | VG30ET || 87 mm × 83 mm || 7.8:1 || V-6 OHC + Nissan-made Garrett-based T3 turbo | ||
|- | |||
| VG30ET (W series, 5/1987 – 1989) || 87 mm × 83 mm || 8.3:1 || V-6 OHC + Nissan-made Garrett-based T25 turbo | |||
|} | |} | ||
| Line 90: | Line 94: | ||
* Factory rim: 15 × 6-1/2 JJ (VG30E), 16 × 7 JJ (VG30ET) | * Factory rim: 15 × 6-1/2 JJ (VG30E), 16 × 7 JJ (VG30ET) | ||
<small>Specs from the 1986 | <small>Specs from the 1986/1987 FSMs (EM, GI, LC, MA sections; see [[Z31/Nuts and Bolts#How to verify|How to verify]]); power figures and W-series data from xenonzcar ([[Z31/engines php|engine specs]], [[Z31/GeneralSpecs php|general specs]], [[Z31/Wseriesmain php|W-series]]). Other 1984–85 and 1988–89 values may differ.</small> | ||
== Z31 reference == | == Z31 reference == | ||
Latest revision as of 22:17, 20 October 2026
|
Welcome to the Z31 Library — a community-maintained reference for the Nissan 300ZX (Z31, 1984–1989). |
Z31 quick reference[edit]
| Engine specs | |||
|---|---|---|---|
| Engine | Displacement | Power (US) | Torque (US) |
| VG30E (N/A) | 2,960 cc (180.62 cu in) | 160 hp @ 5,200 rpm (165 hp on late W-series, 1988–1989) | 173 lb·ft @ 4,000 rpm |
| VG30ET (turbo, 1984 – 5/1987) | 2,960 cc (180.62 cu in) | 200 hp @ 5,200 rpm | 227 lb·ft @ 3,600 rpm |
| VG30ET (turbo, W-series, 5/1987 – 1989) | 2,960 cc (180.62 cu in) | 205 hp @ 5,200 rpm | 227 lb·ft @ 3,600 rpm |
| Engine internal specs | |||
|---|---|---|---|
| Engine | Bore × Stroke | Compression | Configuration |
| VG30E | 87 mm × 83 mm | 9.0:1 | V-6 OHC |
| VG30ET | 87 mm × 83 mm | 7.8:1 | V-6 OHC + Nissan-made Garrett-based T3 turbo |
| VG30ET (W series, 5/1987 – 1989) | 87 mm × 83 mm | 8.3:1 | V-6 OHC + Nissan-made Garrett-based T25 turbo |
Oil change[edit]
| Engine | Capacity (w/ filter) | Capacity (w/o filter) | Recommended viscosity |
|---|---|---|---|
| VG30E | 4.0 L (4-1/4 US qt) | 3.6 L (3-7/8 US qt) | 10W-30 (preferred above −18 °C / 0 °F) |
| VG30ET | 4.0 L (4-1/4 US qt) | 3.6 L (3-7/8 US qt) | 10W-30 (preferred above −18 °C / 0 °F) |
- Change interval: VG30E every 7,500 mi (12,000 km) or 6 months; VG30ET every 5,000 mi (8,000 km) or 6 months; filter every second oil change
- Drain plug torque: 22–29 lb·ft (29–39 N·m)
Transmission fluid[edit]
| Trans | Type | Capacity |
|---|---|---|
| FS5W71C (5-speed MT) | API GL-4, 75W-90 (non-turbo) | 1.9 L (4 US pt) (1986); 2.0 L (4-1/4 US pt) (1987) |
| FS5R90A / BW T-5 (5-speed MT, 1986 turbo) | API GL-4, 80W-90 (turbo) | 1.9 L (4 US pt) |
| FS5R30A (5-speed MT, 1987 turbo) | API GL-4, 80W-90 (turbo) | 2.4 L (5-1/8 US pt) |
| E4N71B (4-speed AT) | Type DEXRON ATF | 7.0 L (7-3/8 US qt) |
Coolant[edit]
- System capacity (without reservoir): VG30E 10.5 L (11-1/8 US qt); VG30ET 11.0 L (11-5/8 US qt); reservoir tank 0.8 L (7/8 US qt)
- Anti-freeze: ethylene-glycol base
- Thermostat opens: 76.5 °C (170 °F)
Spark plugs[edit]
| Engine | OEM plug (standard type) | Gap |
|---|---|---|
| VG30E | BCPR6ES-11 | 1.0–1.1 mm (0.039–0.043 in) |
| VG30ET | BCPR6E-11 | 1.0–1.1 mm (0.039–0.043 in) |
Timing belt[edit]
- Replacement interval: 60,000 mi (96,000 km)
- See Timing belt replacement for full procedure
Tire sizes (stock)[edit]
| Model (1986–1987) | Front | Rear |
|---|---|---|
| VG30E (N/A) | P215/60R15 90H | P215/60R15 90H |
| VG30ET (turbo) | 225/50VR16 | 225/50VR16 |
- Factory rim: 15 × 6-1/2 JJ (VG30E), 16 × 7 JJ (VG30ET)
Specs from the 1986/1987 FSMs (EM, GI, LC, MA sections; see How to verify); power figures and W-series data from xenonzcar (engine specs, general specs, W-series). Other 1984–85 and 1988–89 values may differ.
Z31 reference[edit]
- Z31 — Z31 hub page
- Z31 reference index — full XenonZcar Z31 reference
- Z31 basics · Common issues & fixes · Modifications
- Factory Service Manuals (FSM) · Owner's manuals
- Nuts & bolts — thread pitch, torque specs
- 3D / STL / 2D models — printable parts & fabrication files
- Browse all imported XenonZcar pages
Related Z-car content[edit]
- S30 — 240Z / 260Z / 280Z (1970–1978)
- S130 — 280ZX (1979–1983), predecessor
- Z32 — 300ZX (1990–2000), successor
Forums[edit]
- z31performance.com archive — Sept 2024 import, ~2762 threads organized by category
- Forums landing — all forum archives
Static site archives[edit]
Static Archives — 15 preserved sites including z31.com, thumper300zx, xenonzcar, zhome, robrobinette, msextra, nistune, and more.