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Fuel pressure????

   
Old 08-29-2012, 07:55 PM
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Default Fuel pressure????
I have a 04 GTO ls1 with a walbro255 in the tank and if I put a fuel pressure gauge on the rail it reads 20 psi. The motor starts and runs even revs but I should have more like 60 psi correct?

Anyone?
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Old 08-29-2012, 09:12 PM
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I think the spec is 58 psi. I suppose it could run on 20, but I'd suspect a bad gauge.
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Old 08-29-2012, 09:34 PM
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58-61 psi
Should not rev on 20 psi. Have seen them run on mid 40s
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