fuel pressure

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fuel pressure

Post  o henry on October 13th 2018, 5:58 pm

i have 7 lbs on starting line , going thru 1/8 mile traps pressure drops to 6 lbs ,,never really noticed it before ,, is this normal .. barry grant 250 electric pump.. this is first pass off trailer batteries all charged up 16 volt. 1150 holley.

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Re: fuel pressure

Post  BBFTorino on October 13th 2018, 8:58 pm

Does it go back up to 7 lbs when you are slowing down??

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fuel pressure

Post  o henry on October 13th 2018, 9:36 pm

yes , i was just worried about leaning out motor .

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Re: fuel pressure

Post  BBFTorino on October 13th 2018, 11:00 pm

In a 1/8 th mile, it may not be much cause for alarm, but in a full 1/4 mile, it could get below 6, then you would risk a lean condition.
What size fuel supply line are you using??.....how fast is the vehicle??

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