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07-25-2002, 08:48 AM | #1 |
Scooby Newbie
Member#: 4992
Join Date: Mar 2001
Location: Revelstoke BC, CANADA
Vehicle:2000 Impreza 2.5 RS Blue Ridge Pearl |
EJ20/EJ25 Intake manifold swap
Guys, I did a search, but alas I found nothing.
Does anyone know the differences between the new EJ20 intake manifold and the EJ25? Asides from obvious visual differences, are they interchangable? Are the fuel rail mounting points the same? etc etc. Future thanks to someone who's head is filled with this trivia. -Simon.
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07-25-2002, 09:35 AM | #2 |
Moderator Member#: 922
Join Date: Feb 2000
Chapter/Region:
MWSOC
Location: Schaumburg, IL
Vehicle:16 WRX (white) 04 FXT (red) |
DOHC vs. SOHC... the heights are going to be different, but they should be able to fit on each others' heads. Not sure about the US WRX as it's tumbler valves may need to be transferred with them, but the older style WRX's possibly.
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07-25-2002, 09:48 AM | #3 |
Scooby Newbie
Member#: 4992
Join Date: Mar 2001
Location: Revelstoke BC, CANADA
Vehicle:2000 Impreza 2.5 RS Blue Ridge Pearl |
I've heard mention of "tumbler valves" what exactly are they?
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07-25-2002, 10:28 AM | #4 |
Scooby Specialist
Member#: 1829
Join Date: Jul 2000
Location: Long Island
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You will have to be more specific with your question...Are you talking about a JDM EJ20 manifold or a USDM manifold?..Forget the USDM manifold..It won't work..As for the JDM..It won't fit either. On the EJ25 the bolt holes are staggered...On the JDM they are straight..Also depending on which year and engine you have..Some injectors are side feed...Here is a pic of a JDM manifold bolt patern...Gerry
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