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08-18-2011, 01:28 PM | #1 |
Scooby Newbie
Member#: 291417
Join Date: Aug 2011
Chapter/Region:
International
Location: oxfordshire england
Vehicle:1995 jap impreza imp silver |
sti 330s 2.5 block to be mated with my ej20g heads
So been given a 2.5 sti block from a 2009 sti for 100 pounds and seems like a cheap way to fix my 96 impreza which has bottom end gone on number 3 and 4 anyone know of any issues with this i work at as a technitian for a subaru dealer over here in england so.know how to build a subaru engine so that bit is fine but my subaru training doesnt go far into mixing and matching stuff will get pics of my already stripped engine up next week when i get home
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08-19-2011, 03:25 PM | #2 |
Scooby Newbie
Member#: 291417
Join Date: Aug 2011
Chapter/Region:
International
Location: oxfordshire england
Vehicle:1995 jap impreza imp silver |
Does anyone know of any issues with fitting such a late model block with phase one heads also what do people do with the extra breather pipe on the block
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08-19-2011, 07:04 PM | #3 |
Scooby Specialist
Member#: 101865
Join Date: Nov 2005
Chapter/Region:
NWIC
Location: Covington, WA
Vehicle:88 GL-10 STi silver |
i am currently running a 2005 STI EJ257 block with EJ20K heads... they have the same CC chambers. and should be close to the same...
I am using stock STI head gaskets, although i am using low compression JE pistons. has been in for about 10k miles and no problems to date... -=Suberdave=- |
08-20-2011, 12:54 PM | #4 |
Scooby Newbie
Member#: 291417
Join Date: Aug 2011
Chapter/Region:
International
Location: oxfordshire england
Vehicle:1995 jap impreza imp silver |
Good stuff suberdave i take it your running a turbo did u have to tune your or leave it alone for stock ecu to run i am happy to keep mine at stock level if it will run ok
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08-22-2011, 09:29 AM | #5 |
Scooby Specialist
Member#: 101865
Join Date: Nov 2005
Chapter/Region:
NWIC
Location: Covington, WA
Vehicle:88 GL-10 STi silver |
Here is a link to my webpage with all my engine specs on it:
http://www.suberdave.com I am running a VF37 turbo and a ViPEC standalone ECU with custom dyno tune. -=Suberdave=- |
08-22-2011, 10:17 AM | #6 |
Scooby Guru
Member#: 177
Join Date: Aug 1999
Chapter/Region:
NWIC
Location: Austin, Texas, USA
Vehicle:The 93 W/EJ20K-sold Subaru-less :( |
no way you will be able to change compression ratio, increase displacement by 25% and not need a custom tune (and bigger injectors)
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08-24-2011, 04:19 AM | #7 |
Scooby Newbie
Member#: 291417
Join Date: Aug 2011
Chapter/Region:
International
Location: oxfordshire england
Vehicle:1995 jap impreza imp silver |
I.heard that the stock ecu and injectors can handle it was i told wrong then.can the injectors not handle the extra amount then
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08-24-2011, 11:36 PM | #8 |
Scooby Specialist
Member#: 101865
Join Date: Nov 2005
Chapter/Region:
NWIC
Location: Covington, WA
Vehicle:88 GL-10 STi silver |
Stock injectors are ~440cc
I am running ~780cc injectors on my Hybrid engine. the ~440cc injectors were maxing out with the stock engine and a few bolt on mods. -=Suberdave=- |
09-01-2011, 11:20 PM | #9 |
Scooby Newbie
Member#: 230144
Join Date: Nov 2009
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Question
Is there any problems with valve clearance with the stock 2.5 pistons and if not would stage 3 cams have clearance issues? I am doing this build myself right now
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09-04-2011, 10:12 AM | #10 |
Scooby Newbie
Member#: 291417
Join Date: Aug 2011
Chapter/Region:
International
Location: oxfordshire england
Vehicle:1995 jap impreza imp silver |
Will let you know about valve clearence when i get there hopefully not what stage you at with your engine just pulled mine out yesterday with the tractor wish i had filmed it. It came out easier then with a engine crane
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09-04-2011, 10:17 AM | #11 |
Scooby Newbie
Member#: 291417
Join Date: Aug 2011
Chapter/Region:
International
Location: oxfordshire england
Vehicle:1995 jap impreza imp silver |
What thickness head gasket didi you use on your engine to change compresion ratios
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09-07-2011, 10:02 AM | #12 |
Scooby Newbie
Member#: 230144
Join Date: Nov 2009
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I have not ordered the cams yet. What are you running?
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