Quick question: Did all my02 stis come with fully forged pistons from factory?
 

This one has been bugging me for a while because i seem to be getting different answers from forums and mechanics.

Could anyone shed some light?

And why would subaru do this to my02 stis but go with semi-forged in the later models?

I thought they are, who is telling you otherwise?

if it's an EJ207 it has forgies.

[QUOTE=Rossco;815461]if it's an EJ207 it has forgies.[/QUOTE]

unless your name is strubaru

strubaru?

also any idea why Subaru stopped at my02 sti and made the later models semi-forged only?

Cold start emissions controls and regulations.

[QUOTE=Rossco;815461]if it's an EJ207 it has forgies.[/QUOTE]

Strictly speaking that is ADM only right? As my ej207 is from a jdm my03 and i'm fairly certain it has hyper eutectic pistons.

[QUOTE=dnbosiris;815472]Strictly speaking that is ADM only right? As my ej207 is from a jdm my03 and i'm fairly certain it has hyper eutectic pistons.[/QUOTE]

All International/JDM Ej207's from my99/00 Version 6 STI onward have either HF-3 or HF-4 oem forgies, version 5 and earlier had to be optioned for them.

If yours has cast pistons you have an EJ205.

[QUOTE=Rossco;815476]All International/JDM Ej207's from my99/00 Version 6 STI onward have either HF-3 or HF-4 oem forgies, version 5 and earlier had to be optioned for them.

If yours has cast pistons you have an EJ205.[/QUOTE]

Definitely an ej207,the engine code is ej207dw5cr. From a v8 MY03 STi. According to NASIOC it has cast hypereuthectic pistons: [url]http://forums.nasioc.com/forums/showthread.php?t=2385141[/url]