GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

Fuel Pressure

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Old May 11, 2008 | 01:44 PM
  #11  
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I think im just going to try to find a flex fuel truck.
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Old May 12, 2008 | 05:05 PM
  #12  
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I just noticed my regulator has a screw head on it. One day after I get the cam swapped I'll have to see what happens when I tweek it.
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Old Aug 8, 2008 | 04:42 PM
  #13  
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supernaturalracing has a adj. fuel pressure regulator that should fit in the stock location .

Last edited by dewmanshu; Aug 8, 2008 at 04:49 PM.
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Old Aug 8, 2008 | 04:53 PM
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That screw has a tamper proof head on it just so you know. Yes, it will increase/decrease pressure by turning it if you are just looking for a cheat. The fpr is vacuum/boost referenced so that's why you have straight values in the table. The values in the table are your appropriate inj size and the fpr does the rest. If you are going static with a return system you need insure you aren't having an actual pressure drop (bad pump, restriction, or just the pump isn't enough to keep up) and seriously consider bigger injectors IMO.

I only say cheat as I think being static with a return system (return at the rail vs in the tank) is pretty much saying something if everything is working correctly.
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