Some different intercooler options...

WallyKincaid · 10-19-2005, 08:12 AM

Im buying an L impreza and swaping in an EJ20G. Ive been doing a bit of research but have been getting some conflicting information.

When I put in the new engine, I will need a scoop to get air to the intercooler (obviously). I was looking at some carbon fiber hoods, or some aluminum hoods. Another option I considered was getting a FMIC and turning the boost up on the TD05 to around 21 psi. I thought I could do this second option without a problem and it seemed like the better choice money/power ratio. Now Im having difficulties figuring out the fuel injectors... I thought the 450cc would be enough, then I heard that even 550 wouldnt be enough... Trying to get a "third party" opinion... any help?

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99WRXEJ20 · 10-19-2005, 09:36 AM

What kinda EM you plan on using? and I belive 550s should be enough.

WallyKincaid · 10-19-2005, 09:52 AM

Using stock JDM wiring harness. no aftermarket is required (as far as I know).

Jaxx · 10-19-2005, 11:51 AM

the stock 425/440 (conflicting) is not enough to run 21 psi .. maybe 15ish

550 are fine i am using usdm STI injectors in a modified 1.8 rail but you will need some sort of EM to compensate for the bigger squirters (and less advance?) i am still at 15 on the stock crooked intercooler (w/ a tec2)

WallyKincaid · 10-19-2005, 12:01 PM

This is all getting complicated again haha.... maybe Ill just buy the hood and run normal boost

99WRXEJ20 · 10-19-2005, 05:46 PM

and the stock boost sensor can only read up to 17psi. So you would need some sort of EM or a Fuel cut defenser w/ boost controller.

10-19-2005, 08:12 AM	#1
WallyKincaid Scooby Newbie Member#: 90566 Join Date: Jul 2005 Chapter/Region: Tri-State Location: Upstate NY Vehicle: 1999 Legacy 2.5 GT I want JDM WRX!	Some different intercooler options... Im buying an L impreza and swaping in an EJ20G. Ive been doing a bit of research but have been getting some conflicting information. When I put in the new engine, I will need a scoop to get air to the intercooler (obviously). I was looking at some carbon fiber hoods, or some aluminum hoods. Another option I considered was getting a FMIC and turning the boost up on the TD05 to around 21 psi. I thought I could do this second option without a problem and it seemed like the better choice money/power ratio. Now Im having difficulties figuring out the fuel injectors... I thought the 450cc would be enough, then I heard that even 550 wouldnt be enough... Trying to get a "third party" opinion... any help? * Registered users of the site do not see these ads.

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10-19-2005, 09:36 AM	#2
99WRXEJ20 Scooby Specialist Member#: 34545 Join Date: Mar 2003 Chapter/Region: MWSOC Location: Worthington, Ohio Vehicle: 1999 GC8 74f	What kinda EM you plan on using? and I belive 550s should be enough.

10-19-2005, 09:52 AM	#3
WallyKincaid Scooby Newbie Member#: 90566 Join Date: Jul 2005 Chapter/Region: Tri-State Location: Upstate NY Vehicle: 1999 Legacy 2.5 GT I want JDM WRX!	Using stock JDM wiring harness. no aftermarket is required (as far as I know).

10-19-2005, 11:51 AM	#4
Jaxx NASIOC Supporter Member#: 177 Join Date: Aug 1999 Chapter/Region: NWIC Location: Boise,Idaho,USA Vehicle: The 93 Imp W/EJ20K flat black	the stock 425/440 (conflicting) is not enough to run 21 psi .. maybe 15ish 550 are fine i am using usdm STI injectors in a modified 1.8 rail but you will need some sort of EM to compensate for the bigger squirters (and less advance?) i am still at 15 on the stock crooked intercooler (w/ a tec2)

10-19-2005, 12:01 PM	#5
WallyKincaid Scooby Newbie Member#: 90566 Join Date: Jul 2005 Chapter/Region: Tri-State Location: Upstate NY Vehicle: 1999 Legacy 2.5 GT I want JDM WRX!	This is all getting complicated again haha.... maybe Ill just buy the hood and run normal boost

10-19-2005, 05:46 PM	#6
99WRXEJ20 Scooby Specialist Member#: 34545 Join Date: Mar 2003 Chapter/Region: MWSOC Location: Worthington, Ohio Vehicle: 1999 GC8 74f	and the stock boost sensor can only read up to 17psi. So you would need some sort of EM or a Fuel cut defenser w/ boost controller.