subaru ej25
technical specifications
General
engine brand: subaru
start of production: 1994
engine lifespan: ~300 000
features: DOHC (EJ25D, EJ254, EJ255, EJ257)
SOHC (EJ251, EJ253)
Power and torque
power: 155 – 165 (EJ25D)
165 (EJ251)
165 (EJ253 without phase control system)
175 (EJ253 with phase control system)
165 – 170 (EJ254)
210 – 265 (EJ255)
210 – 250 (EJ257 basic)
280 – 310 (EJ2
torque: 190 – 220 (EJ25D)
225 (EJ251)
225 (EJ253 without phase control system)
225 – 230 (EJ253 with phase control system)
240 – 245 (EJ254)
320 – 350 (EJ255)
320 – 350 (EJ257 basic)
390 R
Fuel
fuel system: injector
fuel type: petrol
euro standards: EURO 1/2 (EJ25D)
EURO 2/3 (EJ251, EJ253 without phase control system)
EURO 3/4 (EJ253 with phase control system, EJ254, EJ255, EJ257)
Timing
timing drive: belt
hydraulic lifters: no
phase regulator: no (EJ25D, EJ251, EJ253 without phase control system)
i-AVLS (EJ253 with phase control system)
AVCS (EJ254, EJ255, EJ257)
Oil
recommended engine oil: 5W-30
engine oil capacity: 4.0 (EJ25D)
4.2 (EJ251, EJ253, EJ255, EJ257 basic)
4.6 (EJ254)
4.3 (EJ257 STI)
Displacement and turbo
displacement: 2457
compression ratio: 9.5 (EJ25D)
10 (EJ251, EJ253)
10.2 – 10.7 (EJ254)
8.2 – 8.4 (EJ255)
8.4 (EJ257 basic)
8.0 – 8.2 (EJ257 STI)
turbocharging: no (EJ25D, EJ251, EJ253, EJ254)
yes (EJ255, EJ257)
Dimensions and measurements
weight: 130 (EJ25D, EJ251)
135 (EJ253, EJ254)
170 (EJ255)
175 (EJ257)
cylinder bore: 99.5
piston stroke: 79
Engine block
cylinder block: aluminum H4
block head: aluminum 16v
