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Rb30e Specs, Maintenance, Mods & Faq

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RB30E Specifications, periodic maintenance, and exploded views.

Easy mods for small power gains

Pod filter installation




RB30E --> RB30ET conversion

RB30E --> RB30DE/T conversion

Auto to Manual conversion


Other useful links:

R31 models... specs & differences

What to look for (common problems) when buying an R31

CalaisTurbo (NA & Turbo info) - A great place to source parts for your turbo conversion!

R31 Skyline Club

General Specifications

6 cylinder overhead cam

Bore - 86mm

Stroke - 85.0mm

Capacity - 2962 cc

Compression ratio - 9.0:1

Overall Length - (mm) 4,653

Overall Width - (mm) 1,690

Overall Height - (mm) 1,395

Wheelbase - (mm) 2,610

Spark Plugs

Type - BCP 6ES-11

Hot type - BCP 5ES-11

Cold type - BCP 7ES-11

Spark Plug Gap - 1.0-1.1mm

Firing Order - 1-5-3-6-2-4


Make - Bosch

Rotation of rotor - Anticlockwise

(early models have a Mitsubishi distributor)

Engine Idle speed - 700 ± 50 RPM

Ignition timing - 15° ± 2°bdtc at 700 ± 50 RPM

Compression Pressure

Standard - 1196kPa

Minimum - 883kPa


Type - wax pellet

opening temperature - 76.5 deg

Ignition coil

Primary resistance - 0.9-1.0 ohm

Secondary resistance - 9000-10000 ohms

High pressure fuel pump

Type - electric roller

Fuel pressure at idle - 206kPa

Fuel pressure at zero vacuum - 255 kPa

Refill Capacities


With filter change - 4.4 litres

Without filter change - 4.0 litres


Refill capacity - 9.0 litres

Reservoir tank - 0.6 litres


Manual - 2.0 litres

Automatic - 7.2 litres


Rear axle - 1.7 litres

Power steering - 1.0 litre

Fuel tank - 61 litres

Replacement filter part numbers:

Ryco oil filter - Part number Z145A

Ryco air filter - Part number A360

Ryco fuel filter - Part number Z202

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