relationship of fuel pressure, tuning, and nitrous
relationship of fuel pressure, tuning, and nitrous Well I figured since desktop dyno 2003 tells me my new setup will make 490 Flywheel HP (dunno if it actually will or not) I decided I would need bigger injectors, ( I have stock ones) or more fuel pressure....... So I bought an Aeromotive because its cheaper than injectors and has the most adjustability of other fuel pressure regulators...(and it looks purty heh hehhhh) but anyway, If I bump up the fuel pressure to about 70 PSI to make my 24lb/hr injectors deliver the necessary 30.6 lb/hr @ 70 PSI to feed that ammount of horsepower...... What will I have to do in LT1 edit to make up for it? If I change the injector sizing section, will it scale automatically so the car runs the same? and how much will I need to lean out the fuel pill on my nitrous kit to keep the correct A/F ratio?
On The Tree
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From: J-VILLE FL
Originally Posted by z28boysteve
dont everyone post at once now! 
TECH Apprentice
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Like Bottledz said above, I wouldn't try pushing 70psi on stock 24# injectors. That's just asking for trouble -- I highly doubt they could handle anything close to that pressure before they start to fail. [Edit -- I don't believe the factory fuel pump could handle that either, if that's what you're running]...
Shameless plug, but I'm selling brand-new in-box 30# Ford SVO's. You'll get a better deal elsewhere though -- I'm trying to get about $280 shipped. New, they are $300 + shipping. Keep looking in the for sale section if you want some used...
I'm using Tunercat, but there's a setting in there to change the injector constant value ('Injector flow rate' under ECM constants). I'm not sure how LT1Edit is set up though.
Shameless plug, but I'm selling brand-new in-box 30# Ford SVO's. You'll get a better deal elsewhere though -- I'm trying to get about $280 shipped. New, they are $300 + shipping. Keep looking in the for sale section if you want some used...
I'm using Tunercat, but there's a setting in there to change the injector constant value ('Injector flow rate' under ECM constants). I'm not sure how LT1Edit is set up though.
Last edited by Alex94TAGT; Mar 24, 2005 at 06:54 PM.
