How can i tell if its an STi Engine Or WRX
#2
Former Sponsor
iTrader: (4)
Join Date: Jul 2003
Location: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Posts: 6,377
Likes: 0
Received 3 Likes
on
3 Posts
Scoobyman, In essence you can't without taking it to pieces !! A red manifold with the appropriate bolt pattern will fit on any EJ20 engine. A later STi engine will have laminated steel head gaskets [ Version 3 onwards ] but these can be fitted to ANY engine also. STi cams are different and a genuine STi will also have forged pistons. But if you get the general drift - it ain't easy.
We built over 100 engines last year and will probably do as many again this year and we NEVER make any statements about the possibilities of what the customers engine is until it's in bits.
We have a car in now that is an STi Version 5 that has a UK 208 hp engine fitted with a red manifold and just has the rubbish pistons and standard cams - AND it's been to a 'Subaru Specialist' [ a VERY well known one. don't ask my lips are very well sealed ] for engine repairs and they've not noticed either............
To be sure it needs to come to bits.
Good luck !! If you want a chat about any of the above 01926 614522
David API Engines Edited for the odd typo
[Edited by APIDavid - 6/4/2003 8:43:22 PM]
We built over 100 engines last year and will probably do as many again this year and we NEVER make any statements about the possibilities of what the customers engine is until it's in bits.
We have a car in now that is an STi Version 5 that has a UK 208 hp engine fitted with a red manifold and just has the rubbish pistons and standard cams - AND it's been to a 'Subaru Specialist' [ a VERY well known one. don't ask my lips are very well sealed ] for engine repairs and they've not noticed either............
To be sure it needs to come to bits.
Good luck !! If you want a chat about any of the above 01926 614522
David API Engines Edited for the odd typo
[Edited by APIDavid - 6/4/2003 8:43:22 PM]
#7
I'll scan and post the fax tomorrow from M Tsuchiya at Subaru in Japan confirming that pre 1996 STI's did not have red manifolds when they left the factory!!!
Dom.
[Edited by dominicm - 05/06/2003 12:54:35]
Dom.
[Edited by dominicm - 05/06/2003 12:54:35]
Trending Topics
#8
Since on the engine subject,had mine rebuild with forgies etc and a 4thou clearance.What that means in terms of everything (performance,compression,type oil,boost etc)Running 22psi for 30kkms no issues
Chris
Chris
#13
Scooby Regular
Join Date: Jun 2002
Location: Scotland
Posts: 1,664
Likes: 0
Received 0 Likes
on
0 Posts
Grant at AWD told me the only way to check without removing bits of the engine is to take one of the plugs out and put an endoscope down the hold to look for the forged pistons. Which is handy if you have an endoscope and know what you're looking for
#14
Former Sponsor
iTrader: (4)
Join Date: Jul 2003
Location: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
Posts: 6,377
Likes: 0
Received 3 Likes
on
3 Posts
Paul M, you won't tell by looking at the top of the piston, as all crowns are the same on like for like pistons [ V2 - same year wrx, V3/4 to same year wrx etc ] whether forged or cast broadly speaking. Maybe better to fiddle it up through the sump and look underneath. There is no shortcut as we have found after countless attempts being inconclusive. Piston crowns are marked HF, HF2 etc which is a help, but they can also be forged or cast.
Anybody got a cast iron solution I'm listening !!
API David
Anybody got a cast iron solution I'm listening !!
API David
Thread
Thread Starter
Forum
Replies
Last Post