Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

Are 42's big enough

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Old 01-18-2012, 01:08 AM
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So I got to looking the yesterday, I realized my car doesn't have a fuel regulator. I have the aftermarket FAST fuel rails with stock injectors...I know the stock injectors have one, but my injectors just have the steel braid crossover...Where could it be?
Old 01-18-2012, 09:41 AM
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Originally Posted by Swaie
So I got to looking the yesterday, I realized my car doesn't have a fuel regulator. I have the aftermarket FAST fuel rails with stock injectors...I know the stock injectors have one, but my injectors just have the steel braid crossover...Where could it be?
If your looking for the regulator, its stock location is on the fuel pump assy on the bottom of the top where the lines hook up. Its on the return line.
Old 01-18-2012, 10:43 AM
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Originally Posted by Swaie
I heard something like since they are ford injectors, they are rated with a lower fuel pressure. And since the Fbody fuel pressure is higher that makes the injectors flow more...is this making any sense? I was told that the injector could be used safely up to 500 hp. If they are the ford injectors?
I just went through this, I have 42s from my Turbo buicks which flow 42#s at 42 PSI at 58 PSI they will flow 49.6#s So I don't need to buy injectors for my 370 LQ4
Old 01-18-2012, 11:32 AM
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you will want something higher than 42# injectors...preferably 60#s would be nice to start with.
Old 01-19-2012, 12:52 AM
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Yea, imma go with some 60's...Okay so its on the return line near the tank then right? Because it's definatly not under the hood. On stock fuel rails its right on top of the intake manifold right. The little silver circle right?
Old 01-19-2012, 09:38 AM
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Originally Posted by Swaie
Yea, imma go with some 60's...Okay so its on the return line near the tank then right? Because it's definatly not under the hood. On stock fuel rails its right on top of the intake manifold right. The little silver circle right?
Its on the fuel pump bucket assy. If you pull the pump assy out of the tank & flip it upside down look on the back side where the return line comes in & there it is, its not adjustable, there is a spring & a diaphragm in it if you take it apart.
Old 01-20-2012, 12:59 PM
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Okay thanks...I will take a look at that. Will I have to delete that one to run an aftermarket one?
Old 01-20-2012, 01:36 PM
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Originally Posted by Swaie
Okay thanks...I will take a look at that. Will I have to delete that one to run an aftermarket one?
Yeah but its easy, you just pop it out.




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