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Fuel needs in low boost application?

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Old 03-17-2007, 08:53 PM
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Default Fuel needs in low boost application?

Im reinstalling my rear mount and i need to sort out the fuel setup.

This setup has never seen over 5psi and as it stands there is a 3.5psi spring in there now.

Is my inline walbro 255 good enough with my 30lb injectors? Ive heard some say the stock pump/injectors will last for 5psi but i dont think ill rely on them. I also dont feel like messing with my tank again.

This is a daily driver with T60, makes under 385rwhp at 3.5psi and under 415rwhp at 5psi.
Old 03-17-2007, 08:55 PM
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The pump is fine, but you may need slightly bigger injectors. Keep in mind, 28s arent enough. 42s are plenty for 5-6psi
Old 03-17-2007, 09:04 PM
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thanks, ill look into 42s. I figured 30 lb svo would be more around 34-36lb in an LS1 application but in an FI application i dont wanna skimp.

My IATs were pretty good with 3.5psi and no IC but the car was never pushed. Im building a dual fan setup mounted on my IC underneath (its in front of my radiator) to keep airflow to radiator but Im wondering how much attention i really need to spend on an IC for this application. Im guessing most are using an IC even at 5psi? even with a small T60?




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