I have used the search function here, and although there is alot of info regarding different model ej's and what's got what, I couldn't seem to find a diffinitive answer to my question.

which is.

I have a EJ20K motor for my project (see thread http://www.perth-wrx.com/vb/general-...i-project.html ) and I want to know does this engine have forged internals (pistons only?). I assumed it did as I thought vIII STi onwards all had forged internals but it appears I may have been wrong.

According to many and varying internets articles:
FORGED
not forged
FORGED
not forged
FORGED
not forged
FORGED
not forged
FORGED

so if anyone can answer difnitively that would be appreciated!

cheers
Josh

also,

open, closed or semi closed deck?

thanks

Forged & I'm pretty sure open, don't worry you've got the Wholly Grail of the early engines, one thing you MUST remember if you've never had a turbo car before is that you MUST let it warm up while driving before hitting boost or it will die in no time and if you've never had a really quick car before you will have a smile from ear to ear that won't come off for weeks.

__________________
Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

thanks heaps!
You wouldn't believe the amount of forums/pages that are saying both forged and not forged!!!
No I have never owned/driven a turbo car- so thanks for the heads up!
I have only been in one STi before, a mates dad's peanut- pretty much stock and I couldn't wipe the smile off my face after that, so I'm pretty keen to drive mine!!

Thing is.... EJ20K was used in V3/4 STI and ALSO V3/4 STI-RA

Only the STI-RA got OEM forged pistons AFAIK. Regular STI got cast pistons.

Open deck motor.

__________________
RS Liberty - Because WRX's are only good for parts...

yeah i keep reading different things... everyone says something different.
I've realised it doesn't really matter as I have decided to stick with conservative mod's like upgraded TMIC, intake & exhaust etc for the next few years (whilst still at uni).
Once i'm working full time and can throw some money at it, ill look at doing a rebuild similar to Rossco's and have all new forged internals anyway....then I can put 2 bar through it

Nah, STI Drop forged, GTB supposedly press forged WRX cast, possibly that was the case with V2 STI cos there was a V2 WRX RA & STI RA I think

__________________
Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

Why do you even need an upgraded tmic ?

__________________
I am only an asshole on the internet :)

[SIGPIC][/SIGPIC]

Fins damaged in several spots on current tmic, & improved tmic = colder air = better performance = happier driver.

V3 is same old opendeck non forged block.

From the research I did ages ago, only the 1st gen were forged & closed deck in the STI RA. V2 onwards were not forged and open deck. There is a table around on the www showing engine numbers/cars they were in/ and if they were forged or CD.

TBH even if you did grab a forged one, its now nearly 20 years old. Better off buying 207 short and slapping that in.

__________________
500+hp and helis on tap, eta - June 2025.