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Old 06-11-2003, 01:08 PM   #1
Scooby Specialist
Member#: 17120
Join Date: Apr 2002
Chapter/Region: Tri-State
Location: Chicago/Manhattan/Queens NYC
2004 04WRX STi 99 RS
sold and MBP, SQC# 33

Default injector size???

does anyone know what the stock STi and stock WRX injector specs are? how much do they flow?
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Old 06-11-2003, 03:17 PM   #2
Scooby Specialist
Member#: 26837
Join Date: Oct 2002
Chapter/Region: MAIC
Location: Annapolis
04 STi - Sold! :(


bump, cause I wanna know too.
Pre-diddy is offline  
Old 06-11-2003, 11:17 PM   #3
Scooby Specialist
Member#: 36852
Join Date: May 2003
Location: North West
2004 STI

Default Re: injector size???

Someone said 560cc for the STI, which should be good for over 400hp (75% duty cycle, fuel rail pressure around 40psi)

Anyone know what the stock fuel pressure is?

Originally posted by Qbushido
does anyone know what the stock STi and stock WRX injector specs are? how much do they flow?
hatchy is offline  
Old 06-12-2003, 02:41 AM   #4
Wombat North
Scooby Specialist
Member#: 21267
Join Date: Jul 2002
Location: Eats, roots and then leaves
STI, EWG 8cm Green
UTEC/ECUtek/WI & SD tune


Factory rate injectors


As most of you know the pink STI injectors flow 565cc but factory rate those at 520cc. WRX flow 440cc and factory rate them at 410cc.

Just guessing the New UJ USDM STI injectors would flow a little more than 565cc.
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