LS2 carbed fuel pressure PSI??
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There is nothing actually WRONG with running 8 lbs. fuel pressure. If you are running a high horsepower motor that is having trouble keeping the bowls full, it is definately the plan. But why take a chance on washing the rings out on a street motor? The Holley or Demon are able to control this pressure. Most carbs can't. Since fuel pressure has absolutely nothing to do with the way a carb meters the fuel air ratio, you could run 2 lbs. if it would keep the bowls full. The fuel has to be at the right level in the carb for it to do it's job correctly, but most carbs can do this with .093 needle seats and around 6 lbs. pressure. Also, you are not at the limit of what the float can control and there is not as much chance of extra fuel blowing past the seats and upsetting your mixture settings or spilling over into the motor and damaging the rings. Just my $.02 worth . Ron
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I can assure I have no fuel spill into the oil, and yes I do drag my car and it can keep up with the 8psi just fine. Keep in mind that most set-ups are not the same and have different requirements. Fuel pressure gauges should be set-up so you can see them, If you do inside the car you need an isolater that would prevent fuel from coming in should you have some failure with the line. Or set it up so it can be seen through the windshield
to see if you maintain your pressure when under a hard load. Start at a lower setting and see how you do. You can also see how your fuel pump is doing .
to see if you maintain your pressure when under a hard load. Start at a lower setting and see how you do. You can also see how your fuel pump is doing .
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[QUOTE=bluethunder364;10001129]I can assure I have no fuel spill into the oil, and yes I do drag my car and it can keep up with the 8psi just fine. Keep in mind that most set-ups are not the same and have different requirements. Fuel pressure gauges should be set-up so you can see them, If you do inside the car you need an isolater that would prevent fuel from coming in should you have some failure with the line. Or set it up so it can be seen through the windshield
to see if you maintain your pressure when under a hard load. Start at a lower setting and see how you do. You can also see how your fuel pump is doing .[/QUOTE]
Can you show me the pix of where the F/P mount set-up so can see.
What I need to have the hose/fitting to dash-in from carb?
to see if you maintain your pressure when under a hard load. Start at a lower setting and see how you do. You can also see how your fuel pump is doing .[/QUOTE]
Can you show me the pix of where the F/P mount set-up so can see.
What I need to have the hose/fitting to dash-in from carb?
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2 lbs probably would not be enough in an LS2 car thats gonna see track time. The G force alone would keep fuel from making it to the carb. Thats why 7-8# is recommended, it overcomes the G's of the launch.
But for cruising I think you're right, 2 # is plenty, unless you ever want to accelerate.
But for cruising I think you're right, 2 # is plenty, unless you ever want to accelerate.
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2 lbs probably would not be enough in an LS2 car thats gonna see track time. The G force alone would keep fuel from making it to the carb. Thats why 7-8# is recommended, it overcomes the G's of the launch.
But for cruising I think you're right, 2 # is plenty, unless you ever want to accelerate.
But for cruising I think you're right, 2 # is plenty, unless you ever want to accelerate.