Dry Sump vs Wet Sump

Discussion in 'PSI Superchargers Tech Questions' started by Danny Humphreys, May 10, 2010.

  1. Danny Humphreys

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    I am selling my current car and moving up to promod. We run a dry sump now(kb block 526 screw hemi Plueger pump) and have zero oiling issues. A car I'm looking at does not have a dry sump tank, i can build one, but wondering why some run dry vs wet. it seems that you could save some weight by running wet sump, eliminate a few lines, lighter pump, and no tank. Thoughts?
     
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  2. 23T Hemmee

    23T Hemmee Member

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    Danny,

    I have to run dry sump in my altered because I've got so little ground clearance and have to run a shallow pan. I ran the same engine in a RED several years ago with a 6" deep wet sump T/F pan with no problems. If you've got enough clearance to run a deep pan a wet sump is definitely simpler and lighter, the dry sump is pretty fool-proof though.
     
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  3. sean70ss

    sean70ss Member

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    dry sump

    Your asking for problems if you do not run a dry sump in your pro mod Danny. Nitrous motor no problem in the 1/8. You can actually scavenge the pan and run it dry using a wet sump deal. I have a 2 gallon tank on mine if that tells you anything.

    Sean
     
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  4. bruce mullins

    bruce mullins Top Dragster

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    danny, the dry sump tank will hold more oil than an oil pan will for starts. if you are still running the veney motor , you will need the extra capacity for the oilers to the rockers.
     
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  5. Danny Humphreys

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    oil

    Bruce, still running the veney deal, motor has been flawless and makes plenty o' power, thanks for the deal! Thought I might be able to simplify things a little.
     
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  6. shawn davis

    shawn davis Member

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    Danny I think Frankie went to wet sump on his car and Wes' car. We just put a wet pump on a 481x alterd,from a plueger dry. 1/8 mile only had 150 lbs in the traps. May put it on mine also.
     
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  7. PROMOD63

    PROMOD63 Member

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    Bae block with a wet sump and 14 quarts with no oiling issues on a pro mod a lot simpler than the dry sump we used to run it does drop oil pressure when i slow from the burnout but never under 80lbs and unless we do something stupid no issues at all i am happy with no belt to come off or a bunch of lines to leak so i guess i am a pro mod wet sump fan
     
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  8. jim phillips

    jim phillips ta/fc

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    i have always run a wet sump in ta/fc never any problems 130lbs when its starts 120lbs when i leave 12qts in the pan my question is why do you think the dry sump is better other than mabe getting the crank out of the oil i guess
     
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  9. bruce mullins

    bruce mullins Top Dragster

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    the veney head requires external oilers to the rockers. you have to run #3 lines from the pressure side of the pump to both sides of each head. you can't put enough oil in a pan with a wet sump to keep up with everything. everyone that I know that has tried has come out with the same result. . .blackened rear main on the first pass. :( the least amount I have run with no problems is 16 quarts. also 120 lbs of oil pressure at fire up!. that kind of pressure and demand is why I have always run a dry sump. The Brad Anderson motors seem to live fine with just the oil coming up through the head passage on each side so they survive with a wet sump. Another reason for a dry sump is safety. you don't have 12 to 14 quarts to worry about getting under the tires if a rod decides to exit the block unexpectedly.
     
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    Last edited: May 14, 2010
  10. jim phillips

    jim phillips ta/fc

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    i ran my venny head motor with a wet sump external lines to the heads thanks bruce for the explanation back then i didnt know any better i guess more money than brains back then
     
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