SUBARU IMPREZA/WRX & WRX STi/GC8-Engine spec.

Link: http://www.grahamberry2.co.jp/impreza_gc8/index.html

SUBARU IMPREZA/WRX & WRX STi/GC8-Engine spec.

There is three kinds of engine of GC8.EJ20G/A-C type, EJ20K/D-E type and EJ207/ F-G type.
In the difference in spec., the horsepower evolved from 240ps to 280ps

In reliability and durability,STiver. is predominance from WRX
The difference in power or torque is based on use different turbo and intercooler.
It is what Subaru Impreza STi ver. compare with Subaru Impreza WRX.

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Type	Year	Model	Performance	Engine Turbo
A	Nov.92'	WRX RA	240ps
B	Oct.93'	WRX/Automatic model		Engine/EJ20G	Turbo impeller	12
	Jan　94’	WRX STi Version1	250ps/6500rpm	Turbo/Mitsubishi TD05H	Compressor impeller	12
			31.5kg-m/3500rpm		Turbo Diameter	OUT 49.1	IN 56.0
					Compressor Diameter	OUT 60.0	IN 46.5
C	Nov　94’	WRX-RA STi	275ps/6500rpm	Engine/EJ20G(STi) Boxer turbo	Permitted rpm	160000rpm
			32.5kg-m/4000rpm	Turbo/Mitsubishi TD05H	Boost	0.65kg/cm2
	Aug　95’	WRX STi Version 2	275ps/6500rpm		Turbo impeller	12
		WRX STi Version2 555	32.5kg-m/4000rpm		Compressor impeller	12
		WRX-RA STi Version 2		Engine/EJ20G (RA STi) Boxer turbo	Turbo Diameter	OUT 49.1	IN 56.0
					Compressor Diameter	OUT 60.0	IN 46.5
	Jan　96’	WRX STi Version 2 V-Limited		Engine/EJ20G (STi) Boxer turbo	Permitted rpm	160000rpm
		WRX-RA STi Version 2 V-Limited		Engine/EJ20G (RA STi) Boxer turbo	Boost	0.7kg/cm2
D	Sep　96’	WRX STi Version 3	280ps/6500rpm	Engine/EJ20K(STi) Boxer Master-4	Turbo impeller	11
			35.0kg-m/4000rpm	Turbo/IHI RHF5HB	Compressor impeller	12
					Turbo Diameter	OUT 48.0	IN 53.0
	Jan　97’	WRX STi Version 3 V-Limited			Compressor Diameter	OUT 60.0	IN 45.4
		WRX　TypeR STi Version			Permitted rpm	165000rpm
					Boost	0.8kg/cm2
E	Sep　97’	WRX STi Version 4	280ps/6500rpm	Engine/EJ20K(STi) Boxer Master-4
			36.0kg-m/4000rpm
	Jan　98’	WRX　TypeR V-Limited
		WRX-RA STi Version 4 V-Limited
		WRX TypeR STi Version 4 V-Limited
F	Sep　98’	WRX STi Version 5	280ps/6500rpm	Engine/EJ207(STi) Boxer Phase2	Turbo impeller	11
			36.0kg-m/4000rpm	Turbo/IHI RHF5HB	Compressor impeller	12
					Turbo Diameter	OUT 48.0	IN 53.0
	Nov　98’	WRX-RA Limited			Compressor Diameter	OUT 60.0	IN 45.4
		WRX-RA STi Version 5 Limited			Permitted rpm	165000rpm
		WRXTypeR STi Version 5 Limited			Boost	0.8kg/cm2
G	Sep　99’	WRX STi Version 6	280ps/6500rpm	Engine/EJ207(STi) Boxer Phase2
			36.0kg-m/4000rpm	Turbo/IHI RHF5HB
	Nov　99’	WRX STi Version 6 Limited
		WRX-RA Limited
		WRXTypeR STi Version 6 Limited