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Standard off the shelf advance auto replacement pump. Anybody make a softer by-pass spring?

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That doesn't sound right Sounds like they sold you a high volume or high pressure pump and said it was a standad pump you can cut one coil off of the spring, especially if it is the black spring. I'm assuming this is a BB and not a SB Mopar, either way the pressure is to high and you can trim either spring to reduce pressure if you can find a spring that will reduce the pressure. I trim almost all of the new springs on the high volume pumps I use, I like to have 10 lbs per 1000 RPM, or 70 lbs at 7000 RPM I do break the motor in with 5W20WT oil and wait until the oil is hot before starting the trimming process, rev it up and read the oil pressure and go from there

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Quote:

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Standard off the shelf advance auto replacement pump. Anybody make a softer by-pass spring?

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That doesn't sound right Sounds like they sold you a high volume or high pressure pump and said it was a standad pump you can cut one coil off of the spring, especially if it is the black spring. I'm assuming this is a BB and not a SB Mopar, either way the pressure is to high and you can trim either spring to reduce pressure if you can find a spring that will reduce the pressure. I trim almost all of the new springs on the high volume pumps I use, I like to have 10 lbs per 1000 RPM, or 70 lbs at 7000 RPM I do break the motor in with 5W20WT oil and wait until the oil is hot before starting the trimming process, rev it up and read the oil pressure and go from there

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Good advice!!

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Sounds like the relief valve is stuck.

Kevin

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try a different pump

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I put a thicker washer in my by-pass to up the pressure
due to a error in my build(forgot the plug in the front
oil galley) and when I figured out what the problem
was and corrected that , I forgot to pull that washer
out and when I rev'd it the pressure went to 140 and
blew the oil filter apart.... so watch out for that high
pressure...... also it takes more HP away from your
engine to spin the pump with all that pressure
This was on a BB

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Buddy of mine did exactly the same thing years ago.
It blew a brand new Lee Eliminator filter across the shop with 8 quarts of Kendall racing 50 right behind it.

Kevin