2009 Subaru Impreza Owner's Manual - Page 374
2009 Subaru Impreza Manual
Page 374 highlights
Specifications 12-3 & Engine Engine model Engine type Displacement cc (cu-in) Bore 6 Stroke in (mm) Compression ratio Firing order 10.0 : 1 EJ253 (2.5 L, SOHC, non-turbo) EJ255 (2.5 L, DOHC, turbo, except WRX STI) 2,457 (150) 3.9 6 3.1 (99.5 6 79.0) 8.4 : 1 1-3-2-4 8.2 : 1 EJ257 (2.5 L, DOHC, turbo, WRX STI) Horizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine & Electrical system Battery type and capacity (5HR) Alternator MT AT Non-turbo models Turbo models Spark plugs AT: Automatic transmission MT: Manual transmission Non-turbo models Turbo models 12V-48AH (55D23L) 12V-52AH (65D23L) 12V-90A 12V-110A FR5AP-11 (NGK) SILFR6A (NGK) - CONTINUED -
&
Engine
Engine model
EJ253
(2.5 L, SOHC, non-turbo)
EJ255
(2.5 L, DOHC, turbo, except WRX STI)
EJ257
(2.5 L, DOHC, turbo, WRX STI)
Engine type
Horizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine
Displacement cc (cu-in)
2,457 (150)
Bore
6
Stroke in (mm)
3.9
6
3.1 (99.5
6
79.0)
Compression ratio
10.0 : 1
8.4 : 1
8.2 : 1
Firing order
1
–
3
–
2
–
4
&
Electrical system
Battery type and capacity (5HR)
MT
12V-48AH (55D23L)
AT
12V-52AH (65D23L)
Alternator
Non-turbo models
12V-90A
Turbo models
12V-110A
Spark plugs
Non-turbo models
FR5AP-11 (NGK)
Turbo models
SILFR6A (NGK)
AT: Automatic transmission
MT: Manual transmission
Specifications
12-3
–
CONTINUED
–