The subject of product updatesnotestemplateszerobounce surfe encompasses a wide range of important elements. LS1 fuel pressure range? I was curious if anyone knew the fuel pressure range for the LS1. I know that you need a minimum of 58lbs at the rail, but what is the spec for idle pressure and under load or high rpm. fuel pressure test - LS1LT1 Forum.
That's on the low side. It should read 43-44 with ignition on, and at WOT. It could be lower because of a dirty fuel filter, leaking fuel pressure regulator, failing fuel pump, or problems with the fuel lines or pump screen. Fuel pressure for LS: | CK5.
Using the C5 Corvette regulator/ filter is the Most effective method of providing all LS-based motors with the 58psi Fuel pressure they require. In this context, usually mounted close to the tank, this regulator has a fixed fuel pressure of 58psi, and provides inline filtration between the fuel pump and the... Equally important, fuel Pressure Fixes - The Pressure Is On - Tech - MotorTrend.
For those of you not familiar with the LS1 fuel system, a typical working setup should run 58 psi of base fuel pressure, where as ours was around 52 and would drop well into the 40s under mild... This perspective suggests that, acceptable fuel pressure range? I have been reading about the fuel pressure and some posts are saying that anything under 58 indicates issue (most likely glogged filter), but then some posts say that since regulator has vacuum attached it intentionally drops pressure when it's not needed. Help!: Fuel Pressure 52psi at idle and gets 0131/0151 only at WOT - LS1.
Additionally, your pressure is low. You should see around 58 psi at the rail, with the ignition on and the car not running. Start by changing out the fuel filter. LS ENGINE FUEL PRESSURE FACTS AND MISCONCEPTIONS - YouTube.
We also address the... LS1 Fuel pressure question | LS1GTO Forums. Is your pressure running or primed?
The pressure usually is only running. But 3-4 psi high isn't a bad problem. Question on LS engine fuel pressure - Pro-Touring.com.
The gauge I have is bad, as in showing low pressure. I bought a gauge that connects to the schreader valve at the end of the fuel rail, and it showed a steady 56 psi @ idle. Additionally, fuel pressure is 38lbs? The 96 FSM lists 41-47 psi as the fuel pressure range with the vacuum hose to the Fuel Pressure Regulator disconnected and the vacuum source plugged. With the engine idling or driven at part throttle, the fuel pressure will be LOWER.
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