MustangWorks.com : Ford Forums - View Single Post - How low can I safely set my fuel pressure?

jimberg · 06-04-2001, 10:32 AM

I read the other thread and Unit 5302's comment about the spray pattern being bad is correct, especially if you try to make an adjustment through fuel pressure. Optimal spray pattern will be at normal fuel pressure. The biggest problem you'll have is at the low end since the computer will not be able to open and close the injectors fast enough to keep the air/fuel curve normal. Going back to 19# injectors for your mods would give you better fuel control. If you start having fuel starvation issues then you can bump up your fuel pressure to compensate.

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351W 89 Mustang GT Convertible

06-04-2001, 10:32 AM	#3
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	I read the other thread and Unit 5302's comment about the spray pattern being bad is correct, especially if you try to make an adjustment through fuel pressure. Optimal spray pattern will be at normal fuel pressure. The biggest problem you'll have is at the low end since the computer will not be able to open and close the injectors fast enough to keep the air/fuel curve normal. Going back to 19# injectors for your mods would give you better fuel control. If you start having fuel starvation issues then you can bump up your fuel pressure to compensate. ------------------ 351W 89 Mustang GT Convertible