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Old 02-08-2013, 09:41 AM   #1
Sethk1980
Scooby Newbie
 
Member#: 329793
Join Date: Aug 2012
Location: South Point, Ohio
Vehicle:
2002 WRX
PSM

Default Fuel pressure regulator needed?

I've got a V5 JDM STI motor swap nearing completion. I added a header, green 16g turbo, catless up and down pipes (3 inch, heat wrapped from turbo back), header (also wrapped), 12lb flywheel, silicone hoses throuought, custom piped intake, big aftermarket TMIC, electronic boost controller...you get the idea.

I have also installed a Walbro 255lph fuel pump to feed the beast, and the 555cc yellow injectors. My question is: will I need to install a fuel pressure regulator?
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Old 02-08-2013, 10:33 AM   #2
kpluiten
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Member#: 120273
Join Date: Jul 2006
Chapter/Region: SWIC
Location: AZ
Vehicle:
06 WRBWRXWGN
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Yes. Your car will not run properly without a fuel pressure regulator installed. Now if you're asking whether or not you need an aftermarket regulator or use the stock one, that's another story. But you definitely need one installed either way.

I think the stock one will be fine for your needs, though.
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Old 02-08-2013, 06:10 PM   #3
Sethk1980
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Member#: 329793
Join Date: Aug 2012
Location: South Point, Ohio
Vehicle:
2002 WRX
PSM

Default

Yea I was asking on whether or not to install an aftermarket. Good info! Thank you very much
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