the subaru language..??

[stover]

can some one explain the engine codes and turbo codes to me??? i have hear dvf22 23 24 and ej and all this other stuff wat does it all mean

[Signatus230]

Ok, I can do a small amount, but I don't have that much time.

Ej is the engine code: IE: A version 7 STi in Japan had an EJ207. Meaning it was EJ - 2.0L turbo.

VF is for the turbo's: IE: The largest turbo is VF22 - VF23.

Hope this helps, I would post more but I am short on time atm.

[TROLL]

a few quick ones

EJ18, EJ20 - USDM NA Subaru Motors available in earlier models
EJ25 - USDM NA Impreza motor available in older models up through current non-turbo lineup
EJ205 - USDM WRX 2.0L Turbo Engine from 2002-2005 (open deck block)
EJ255 - USDM WRX 2.5L Turbo Engine from 2006+ (open deck block)
EJ257 - USDM WRX 2.5L Turbo Engine from 2004+ (semi-closed deck block, 2007 got revised heads and ECU)
EJ207 - JDM STi 2.0L Turbo Engine (semi closed deck block, forged pistons, 8k rpm redline)

Mitsubishi TD04 - USDM Stock WRX turbo
IHI VF39 - USDM Stock STi turbo
IHI VF30, VF34 - JDM Stock STi turbos, popular upgrades for US (VF30 non-bb, VF34 is bb)

[stover]

so the smaller number after vf is a bigger turbo... and the 2 number after EJ mean the displacment... ok kool so wat does the 3rd number after EJ mean?? is it the model of the car?

[RyanG]

basically year and version of motor. say EJ207= JDM EJ20g EJ20K mid 90's RA engines and such.

[TROLL]

Originally Posted by sexystover

so the smaller number after vf is a bigger turbo...

na it doesnt work like that, there's no real method to it.

and yeah the EJ20 or EJ25 (or EJ18) is an indication of the size of the engine

[Renegade_]

EJ = Subaru 4 cylinder designation
Next two numbers are displacement, EJ25X is 2.5L, EJ20X is 2.0.
Last letter/number is just revisions and versions of the motor

EJ20G - Original WRX/STi motors (version 1-2) in japan ranged in years from 94-97, some EJ20Gs were around in WRX wagons up until 97.
EJ20K - Version 3-4 WRX/STi motors, 97-98. Changed up the design from the EJ20G, lighter pistons, open deck, better heads, etc.
EJ207 - Version 5-8. 99 until now. The GC/GM chassis/RS chassis ended in japan in 2000 when the new bugeye chassis came which had a v7 motor. Blobeye in japan has the v8 motor. Further refined past the EJ20Ks
EJ257 - United states STi motor, 2.5L.
EJ205 - US WRX motor

VF22s were stock on JDM WRX Type RA motors (which are monsters I hear) and VF23s are stock on JDM STi Type RA motors. Difference between them is that the 23 was ball bearing but smaller coldside I believe.

The second link someone ripped from another site, but it still accurate.

http://forums.nasioc.com/forums/show....php?t=1141476 - Turbos
http://www.angelfire.com/extreme4/sc...model_of_i.htm - Motors