Bigger fuel injectors -

Scion tC 1G Drivetrain & Power Engine and transmission discussions...

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Old 05-16-2018, 05:30 PM   #1  
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Default Bigger fuel injectors

I'm trying to get some idea on fuel injectors, i have a 2005 tC stock motor with some bolt on wanted to know, what size CC are the stock fuel injectors,

What's the max I can upgrade to without going force induction, and would I need to upgrade fuel pump, and would I need to get a ECU tuned for it?

Last edited by MR_LUV; 05-16-2018 at 06:07 PM.
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Old 05-21-2018, 05:26 PM   #2  
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I flow tested my injectors and they come out to 352cc @ 3 bar FP. I doubt you will need more injector for little bolt on stuff. If you go NA built engine with crazy cams then you'll probably start to need injectors. Anytime you change injector types you will have to tune somehow for the fueling change. On these cars a simple AEM FIC will do the job to get the fuel dialed in.
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