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'\''Welcome to the Z31 Library'\''— a community-maintained reference for the Nissan 300ZX (Z31, 1984–1989).
{| style="width:100%; border:0;"
| style="vertical-align:top; padding:0 12px 0 0;" |
'''Welcome to the Z31 Library''' — a community-maintained reference for the Nissan 300ZX (Z31, 1984–1989).
|}


== Sections ==
== Z31 quick reference ==


* '\''[[Forums]]'\''— archived community forum threads, imported into the wiki for searching and editing.
{| class="wikitable" style="width:100%"
** [[Forums/Z31P|z31performance.com archive]] — September 2024 import.
! colspan="4" | Engine specs
* '\''Static forum archives'\''— browse the original sites as they appeared:
|-
** [/Z31performance_archive/ z31performance.com (original look)]
! 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
|}
 
{| class="wikitable" style="width:100%"
! colspan="4" | 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 ===
 
{| class="wikitable"
|-
! 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 ===
 
{| class="wikitable"
|-
! 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 ===
 
* 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 ===
 
{| class="wikitable"
|-
! 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 ===
 
* Replacement interval: 60,000 mi (96,000 km)
* See [[Z31/timingbelt php|Timing belt replacement]] for full procedure
 
=== Tire sizes (stock) ===
 
{| class="wikitable"
|-
! 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)
 
<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]] — Z31 hub page
* [[Z31/reference|Z31 reference index]] — full XenonZcar Z31 reference
* [[Z31/basics|Z31 basics]] · [[Z31/issues|Common issues & fixes]] · [[Z31/mods|Modifications]]
* [[Z31/z31fsm_php|Factory Service Manuals (FSM)]] · [[Z31/z31ownersmanuals_php|Owner's manuals]]
* [[Z31/Nuts_and_Bolts|Nuts & bolts — thread pitch, torque specs]]
* [[Z31/Models|3D / STL / 2D models — printable parts & fabrication files]]
* [[:Category:Imported from Xenonzcar|Browse all imported XenonZcar pages]]
 
== Related Z-car content ==
 
* [[S30]] — 240Z / 260Z / 280Z (1970–1978)
* [[S130]] — 280ZX (1979–1983), predecessor
* [[Z32]] — 300ZX (1990–2000), successor
 
== Forums ==
 
* [[Forums/Z31P|z31performance.com archive]] — Sept 2024 import, ~2762 threads organized by category
* [[Forums|Forums landing]] — all forum archives
 
== Static site archives ==
 
[[Static Archives]] — 15 preserved sites including z31.com, thumper300zx, xenonzcar, zhome, robrobinette, msextra, nistune, and more.


== Getting started ==
== Getting started ==


* [[Special:RecentChanges|Recent changes]]
* [[Special:RecentChanges|Recent changes]] · [[Special:AllPages|All pages]] · [[Special:Categories|Categories]]
* [[Special:AllPages|All pages]]
* [[Special:Categories|Categories]]

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]

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]

Related Z-car content[edit]

  • S30 — 240Z / 260Z / 280Z (1970–1978)
  • S130 — 280ZX (1979–1983), predecessor
  • Z32 — 300ZX (1990–2000), successor

Forums[edit]

Static site archives[edit]

Static Archives — 15 preserved sites including z31.com, thumper300zx, xenonzcar, zhome, robrobinette, msextra, nistune, and more.

Getting started[edit]

Retrieved from "https://z31library.com/index.php?title=Main_Page&oldid=8117"