JDM EJ205 Swap, troubleshooting, differences, nightmare - Page 2

AlexL · 12-08-2024, 02:00 PM

Quote:

Originally Posted by D-Rodman

Make sure the fuel rails are compatible with the jdm intake manifold.

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Yeah, I bought the adapters which say "These Radium Engineering adapters permit the use of any OEM or aftermarket Subaru top feed fuel rail", yeah except if your OEM hardlines push everything out of place.

So I'm doing even bigger injectors, SS lines, and rails now. Waiting on parts at the moment.

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D-Rodman · 12-15-2024, 11:51 PM

Where are you at ?
Did you sort it out ?

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AlexL · 12-16-2024, 12:57 PM

Quote:

Originally Posted by D-Rodman

Where are you at ?
Did you sort it out ?

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More or less!

It's back in with, new fuel lines, new fuel rails, new injectors. I just buttoned it up last night, checked fuel pressure and flashed a new tune for the bigger injectors. I did not start it, because I know better to do that on a Sunday night when I won't get to touch it until next weekend. The saga continues!

feliz · 01-25-2025, 05:10 PM

JDM EJ20 X-Y. throw out the intake and sell heads for scrap metal. you can use valves. shim cups. etc but the 4 cam sensors don't work with US stuff. use the USDM heads-intake and sensors your ECM can work with. slightly higher CR but not huge issue until you go with real boost. then you want 800 buck forged pistons, etc...

D-Rodman · 01-29-2025, 11:01 PM

Quote:

Originally Posted by feliz

JDM EJ20 X-Y. throw out the intake and sell heads for scrap metal. you can use valves. shim cups. etc but the 4 cam sensors don't work with US stuff. use the USDM heads-intake and sensors your ECM can work with. slightly higher CR but not huge issue until you go with real boost. then you want 800 buck forged pistons, etc...

He is not playing with either of those variants, he has a ver 7 ej207

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AlexL · 01-31-2025, 07:12 AM

It's a V9 and nothing fits. The one piece intake is cool but it hits the AVCS solenoids. I started it and it has a massive vacuum leak, so I tore it apart again. It's been cold and I have not been working on it.

D-Rodman · 02-01-2025, 11:35 PM

Quote:

Originally Posted by AlexL

It's a V9 and nothing fits. The one piece intake is cool but it hits the AVCS solenoids. I started it and it has a massive vacuum leak, so I tore it apart again. It's been cold and I have not been working on it.

Why would that be ?
I have a ver 9 ej207 with the original one piece intake manifold and fuel rails. No issues.

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AlexL · 02-02-2025, 06:20 AM

Well, because my 05 has quick disconnect fuel fittings, so I could neither use my old fuel lines (would not bolt up), or the fuel lines from the one piece intake (because they are barb fittings).

So instead, I went full aftermarket fuel lines, which are beautiful and bendy, but the aftermarket fuel rails sit against the AVCS solenoids.

So now I'm thinking I need to go back to TGV deletes, or, I need spacers between the heads and the intake.

This is my nightmare. Name of thread still holds. 8 degrees out this morning, work stoppage.

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12-15-2024, 11:51 PM	#27
D-Rodman Scooby Specialist Member#: 110078 Join Date: Mar 2006 Location: Long Island N.Y. Vehicle: 02 Bugeye JDM STi OBP BLACK	Where are you at ? Did you sort it out ? Sent from my iPhone using NASIOC

01-25-2025, 05:10 PM	#29
feliz Scooby Newbie Member#: 517506 Join Date: Aug 2020 Chapter/Region: MAIC Location: south jersey Vehicle: 97 coupe-bugeyewrx	JDM EJ20 X-Y. throw out the intake and sell heads for scrap metal. you can use valves. shim cups. etc but the 4 cam sensors don't work with US stuff. use the USDM heads-intake and sensors your ECM can work with. slightly higher CR but not huge issue until you go with real boost. then you want 800 buck forged pistons, etc...

01-31-2025, 07:12 AM	#31
AlexL NASIOC Supporter Member#: 192988 Join Date: Oct 2008 Location: CT Vehicle: 2005 WRB GD Wagon	It's a V9 and nothing fits. The one piece intake is cool but it hits the AVCS solenoids. I started it and it has a massive vacuum leak, so I tore it apart again. It's been cold and I have not been working on it.

02-02-2025, 06:20 AM	#33
AlexL NASIOC Supporter Member#: 192988 Join Date: Oct 2008 Location: CT Vehicle: 2005 WRB GD Wagon	Well, because my 05 has quick disconnect fuel fittings, so I could neither use my old fuel lines (would not bolt up), or the fuel lines from the one piece intake (because they are barb fittings). So instead, I went full aftermarket fuel lines, which are beautiful and bendy, but the aftermarket fuel rails sit against the AVCS solenoids. So now I'm thinking I need to go back to TGV deletes, or, I need spacers between the heads and the intake. This is my nightmare. Name of thread still holds. 8 degrees out this morning, work stoppage.