{"id":9838,"date":"2014-12-09T14:26:26","date_gmt":"2014-12-09T22:26:26","guid":{"rendered":"http:\/\/www.racingjunk.com\/news\/?p=9838"},"modified":"2016-11-30T15:14:58","modified_gmt":"2016-11-30T23:14:58","slug":"lubrication-dry-sump-oiling","status":"publish","type":"post","link":"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/","title":{"rendered":"Lubrication: Dry Sump Oiling"},"content":{"rendered":"<figure id=\"attachment_9840\" aria-describedby=\"caption-attachment-9840\" style=\"width: 400px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/mor-22425_w.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9840\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/mor-22425_w-2\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/mor-22425_w.jpg\" data-orig-size=\"400,400\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"mor-22425_w\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Moroso Stage Five Dry Sump Pump&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/mor-22425_w-300x300.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/mor-22425_w.jpg\" class=\"size-full wp-image-9840 \" alt=\"Moroso Stage Five Dry Sump Pump\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/mor-22425_w.jpg\" width=\"400\" height=\"400\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/mor-22425_w.jpg 400w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/mor-22425_w-150x150.jpg 150w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/mor-22425_w-300x300.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><figcaption id=\"caption-attachment-9840\" class=\"wp-caption-text\">Moroso Stage Five Dry Sump Pump<\/figcaption><\/figure>\n<p>Choosing the right dry sump oil pump can be a difficult process. Here I break down the steps and factors to help make it a little easier.<\/p>\n<div><\/div>\n<p>Whether you\u2019ve got a few more pennies rubbing together in your pockets, or you\u2019re building a real strip burner producing several hundred horsepower and foot-pounds, you\u2019ve decided that the best oiling\/lubrication system for your strip burner\u2019s engine is a dry sump system.<\/p>\n<p>There are a number of companies supplying whole kits as well as bits and pieces. So how do you decide which to get? In my opinion, the major deciding factor, once you\u2019ve come to the dry sump conclusion, \u00a0is cost. None of it comes cheap, which means you want to be sure you&#8217;re getting the right pump for your vehicle. I\u2019m going to lay out the different types of systems out there, as well as some of the more popular manufacturers to help you make a more informed decision.<\/p>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n<p>&nbsp;<\/p>\n<p><strong>When to Go with a Dry Sump System<\/strong><\/p>\n<figure id=\"attachment_9844\" aria-describedby=\"caption-attachment-9844\" style=\"width: 671px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3020.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9844\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/attachment\/3020\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3020.jpg\" data-orig-size=\"671,394\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;4.9&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;E4600&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;-62169984000&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;6&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.00805801&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"3020\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;ARE Two Stage Dry Sump Oil Pump with pulley and belt&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3020-300x176.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3020.jpg\" class=\"size-full wp-image-9844\" alt=\"ARE Two Stage Dry Sump Oil Pump with pulley and belt\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3020.jpg\" width=\"671\" height=\"394\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3020.jpg 671w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3020-300x176.jpg 300w\" sizes=\"auto, (max-width: 671px) 100vw, 671px\" \/><\/a><figcaption id=\"caption-attachment-9844\" class=\"wp-caption-text\">ARE Two Stage Dry Sump Oil Pump with pulley and belt<\/figcaption><\/figure>\n<p>We\u2019ve gone over this before, but there are a few reasons for going with a dry sump system for lubricating your engine. The first one is how much power you expect to be making and what kind of launches you expect to get. If you don\u2019t expect much oil splash, you can technically stick with a wet sump system and put your money into making more power and hooking that power up.<\/p>\n<figure id=\"attachment_9845\" aria-describedby=\"caption-attachment-9845\" style=\"width: 665px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021s.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9845\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/3021s\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021s.jpg\" data-orig-size=\"665,384\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;5.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;E4600&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;-62169984000&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;7.7&quot;,&quot;iso&quot;:&quot;50&quot;,&quot;shutter_speed&quot;:&quot;0.0092081&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"3021s\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;An ARE 3 Stage Dry Sump Pump with belt and pulley&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021s-300x173.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021s.jpg\" class=\"size-full wp-image-9845\" alt=\"An ARE 3 Stage Dry Sump Pump with belt and pulley\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021s.jpg\" width=\"665\" height=\"384\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021s.jpg 665w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021s-300x173.jpg 300w\" sizes=\"auto, (max-width: 665px) 100vw, 665px\" \/><\/a><figcaption id=\"caption-attachment-9845\" class=\"wp-caption-text\">An ARE 3 Stage Dry Sump Pump with belt and pulley<\/figcaption><\/figure>\n<p>However, if you\u2019re expecting to get funny car or dragster-type launches, especially with wheelstands, you\u2019ll probably need a dry sump system. If you\u2019re building a high-RPM engine, the problem is compounded. All that oil slopping to the back of the engine can seriously damage, if not outright kill that multi-thousand dollar investment known as a drag racing engine.<\/p>\n<div>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_9846\" aria-describedby=\"caption-attachment-9846\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021-sample.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9846\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/3021-sample\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021-sample.jpg\" data-orig-size=\"500,415\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"3021-sample\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;An ARE 3 Stage Dry Sump Pump mounted to an engine&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021-sample-300x249.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021-sample.jpg\" class=\"size-full wp-image-9846\" alt=\"An ARE 3 Stage Dry Sump Pump mounted to an engine\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021-sample.jpg\" width=\"500\" height=\"415\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021-sample.jpg 500w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/3021-sample-300x249.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><figcaption id=\"caption-attachment-9846\" class=\"wp-caption-text\">An ARE 3 Stage Dry Sump Pump mounted to an engine<\/figcaption><\/figure>\n<\/div>\n<p>The original design of dry sump systems was driven by a need for more reliable lubrication systems in high power race cars. Over the years these systems have evolved to the point where they also help engines deliver more horsepower and allow them to be mounted lower, increasing high speed stability by lowering the center of gravity.<\/p>\n<p><strong>What Constitutes a Dry Sump Lubrication System?<\/strong><\/p>\n<div>\n<figure id=\"attachment_9847\" aria-describedby=\"caption-attachment-9847\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot1.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9847\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/dry-sump-screenshot1\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot1.jpg\" data-orig-size=\"1024,890\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Dry-Sump-Screenshot1\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Top Left: An ARE Low Capacity Oil Pan showing the scavenge stage tubing.&lt;br \/&gt;\nTop Right: Front shot of a SB Chevy engine with an ARE Stage 3 left-side mount dry sump pump installed, as well as the scavenge tubing.&lt;br \/&gt;\nBottom: Stage 3 SB Chevy dry sump pump&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot1-300x260.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot1.jpg\" class=\"size-full wp-image-9847\" alt=\"Top Left: An ARE Low Capacity Oil Pan showing the scavenge stage tubing. Top Right: Front shot of a SB Chevy engine with an ARE Stage 3 left-side mount dry sump pump installed, as well as the scavenge tubing. Bottom: Stage 3 SB Chevy dry sump pump\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot1.jpg\" width=\"1024\" height=\"890\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot1.jpg 1024w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot1-300x260.jpg 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption id=\"caption-attachment-9847\" class=\"wp-caption-text\">Top Left: An ARE Low Capacity Oil Pan showing the scavenge stage tubing.<br \/>Top Right: Front shot of a SB Chevy engine with an ARE Stage 3 left-side mount dry sump pump installed, as well as the scavenge tubing.<br \/>Bottom: Stage 3 SB Chevy dry sump pump<\/figcaption><\/figure>\n<\/div>\n<p><span style=\"line-height: 1.5em;\">As I\u2019ve mentioned before, a wet sump lubrication system scavenges the oil from the oil pan, the sump, keeping the pan as dry as possible. This type of system is made up of the following parts:<\/span><\/p>\n<ul>\n<li>The dry sump oil pump which is a multi-stage pump driven by an accessory drive belt.<\/li>\n<li>The external oil storage tank.<\/li>\n<li>The external oil filter and mount.<\/li>\n<li>An oil pan with scavenge fittings attached.<\/li>\n<li>Tubing and piping to connect the system\u2019s components.<\/li>\n<\/ul>\n<figure id=\"attachment_9839\" aria-describedby=\"caption-attachment-9839\" style=\"width: 1024px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot2.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9839\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/dry-sump-screenshot2\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot2.jpg\" data-orig-size=\"1024,528\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Dry-Sump-Screenshot2\" data-image-description=\"\" data-image-caption=\"&lt;p&gt; Screenshot showing a low capacity dry sump oil pan from ARE with two scavenge outlets.&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot2-300x154.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot2.jpg\" class=\"size-full wp-image-9839\" alt=\" Screenshot showing a low capacity dry sump oil pan from ARE with two scavenge outlets.\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot2.jpg\" width=\"1024\" height=\"528\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot2.jpg 1024w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/Dry-Sump-Screenshot2-300x154.jpg 300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption id=\"caption-attachment-9839\" class=\"wp-caption-text\">Screenshot showing a low capacity dry sump oil pan from ARE with two scavenge outlets.<\/figcaption><\/figure>\n<p>There are a variety of different types of dry sump pumps made by a number of companies. Pumps are usually identified by how many stages they contain, with these stages numbering anywhere from two to six. At least one stage will be used to scavenge all the oil from the oil pan and pump it to the reservoir. The second stage will pump the oil through the filter and to the engine.<\/p>\n<p><strong>How Many Stages Does Your Dry Sump Pump Need?<\/strong><\/p>\n<div><\/div>\n<figure id=\"attachment_9842\" aria-describedby=\"caption-attachment-9842\" style=\"width: 599px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1042.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9842\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/02-99-1042\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1042.jpg\" data-orig-size=\"856,555\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"02-99-1042\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;A drawing of a five stage dry sump oil pump from Dailey Engineering&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1042-300x194.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1042.jpg\" class=\" wp-image-9842 \" alt=\"A drawing of a five stage dry sump oil pump from Dailey Engineering\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1042.jpg\" width=\"599\" height=\"389\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1042.jpg 856w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1042-300x194.jpg 300w\" sizes=\"auto, (max-width: 599px) 100vw, 599px\" \/><\/a><figcaption id=\"caption-attachment-9842\" class=\"wp-caption-text\">A drawing of a five stage dry sump oil pump from Dailey Engineering<\/figcaption><\/figure>\n<div><\/div>\n<p>For the average strip burner, a two stage dry sump pump should be sufficient. However, if you throw in a good-sized oil cooler and a large oil reservoir-more and cooler oil retains viscosity, thus engine protection-you\u2019re going to need to increase the number of stages.<\/p>\n<p>The guys that get paid big bucks to design and build the engines for the racing teams use expensive programs to help them calculate the requirements of the engine they\u2019re building. Most of us don\u2019t have that luxury, we\u2019ve got to do it ourselves.<\/p>\n<p>Engine and pump designers tell us that two stage pumps should be fine for most engines developing moderate amounts of horsepower. A third stage will be helpful, but most likely not necessary. This tells me that I want three stages, at minimum. If I\u2019m building a huge blown big-block that\u2019s going to spin at high RPMs, I\u2019m going with at least four or five stages.<\/p>\n<div><\/div>\n<p><strong>What about the Different Types of Scavenger Stages?<\/strong><\/p>\n<p>There are two different types of scavenge pumps\/stages used in dry sump pumps. The first, and most common is the gear type. This is composed of two or more gears that mesh together in such a way as to create pockets which trap air and oil. As the gears rotate, the fluid that is trapped is pressurized and moved from one part of the pump to another. Because this type of pump traps less air, it is more efficient.<\/p>\n<p>The second type of scavenge stage is Roots. In this design, instead of gears, we have spinning rotors that trap air and oil between the rotors, pressuring them and moving them further along the system. The Roots type scavenger pump pushes more volume, but it also traps more air, thus decreasing efficiency.<\/p>\n<p>I prefer to utilize a pump with a mix of both gear type and Roots stages. This way I get the best of both worlds. I increase volume using the Roots stage and I increase efficiency using the gear stage or stages. If I\u2019m building an engine that will produce moderate amounts of horsepower, I\u2019ll go with one of each. If I\u2019m building a beast, I\u2019ll go with two gear stages and one Roots. Finally, if I\u2019m building a monster blown big block, that baby is going to have two and two, or three gear stages and one Roots stage.<\/p>\n<figure id=\"attachment_9843\" aria-describedby=\"caption-attachment-9843\" style=\"width: 636px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1051.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9843\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/02-99-1051\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1051.jpg\" data-orig-size=\"636,521\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"02-99-1051\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Drawing of a Dailey Engineering 4 stage pump showing two separate scavenge stage orifice sizes&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1051-300x245.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1051.jpg\" class=\"size-full wp-image-9843\" alt=\"Drawing of a Dailey Engineering 4 stage pump showing two separate scavenge stage orifice sizes\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1051.jpg\" width=\"636\" height=\"521\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1051.jpg 636w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1051-300x245.jpg 300w\" sizes=\"auto, (max-width: 636px) 100vw, 636px\" \/><\/a><figcaption id=\"caption-attachment-9843\" class=\"wp-caption-text\">Drawing of a Dailey Engineering 4 stage pump showing two separate scavenge stage orifice sizes<\/figcaption><\/figure>\n<p><span style=\"line-height: 1.5em;\">\u00a0<\/span><\/p>\n<p><strong>Another Word on the Differences Between Gear and Roots Stages<\/strong><\/p>\n<p>Every engine, no matter how much care you take of it, generates some form of debris. This is carried away by the oil and hopefully trapped in the filter or filters. Sometimes we\u2019ll put a strong magnet on the bottom of the oil pan to catch the bigger pieces. This debris causes damage throughout the engine, and the oil pump is no exception. To cut down on the amount of debris floating in the engine, besides the magnets I mentioned above, dry sump pumps have filters in the scavenge tubes, this helps keep the worst of the debris from damaging the pump.<\/p>\n<figure id=\"attachment_9841\" aria-describedby=\"caption-attachment-9841\" style=\"width: 300px\" class=\"wp-caption alignleft\"><a href=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/oilpum3.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9841\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/lubrication-dry-sump-oiling\/oilpum3\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/oilpum3.jpg\" data-orig-size=\"300,150\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"oilpum3\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;An example of the rotors in a Roots-style pump&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/oilpum3.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/oilpum3.jpg\" class=\"size-full wp-image-9841 \" alt=\"An example of the rotors in a Roots-style pump\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/oilpum3.jpg\" width=\"300\" height=\"150\" \/><\/a><figcaption id=\"caption-attachment-9841\" class=\"wp-caption-text\">An example of the rotors in a Roots-style pump<\/figcaption><\/figure>\n<p><span style=\"line-height: 1.5em;\">Roots-type pumps are somewhat fragile and susceptible to damage caused by debris floating around in the oil. Gear-type pumps are far less susceptible to damage by debris. Because of this, the filter\/screen in the scavenge line can be bigger, allowing smaller pieces to move through the pump and be trapped by the main filter without degrading oil flow.<\/span><\/p>\n<div><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Some Final Words on Dry Sump Systems<\/strong><\/p>\n<div><span style=\"line-height: 1.5em;\">Along with the pump, reservoir, the external filter, and tubing, you\u2019ll need drive pulleys. You need to install pulleys on the crankshaft and the pump that will allow the pump to run at approximately half the speed of the crankshaft. This means you want the crankshaft pulley to be smaller than the oil pump pulley.<\/span><\/div>\n<p>Every pump will have listed on its spec sheet the ideal RPM range, after which the pump will begin losing efficiency due to cavitation-the creation of air bubbles in the oil being pumped. Some dry sump pumps begin cavitating around 4700-5000 RPM. You will need to determine the max RPM of your engine to determine the proper pulley sizes so as to stay within the ideal operating speed range.<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Drag Race 101: Lubrication. Choosing the right dry sump oil pump can be a difficult process. Here are some steps and factors to help make the choice a little easier.<\/p>\n<\/div>","protected":false},"author":28,"featured_media":9851,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3448,3465,5008,11,9],"tags":[961,1473,281,1074,1471,461],"class_list":["post-9838","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drag-race-101","category-drag-racing","category-engine","category-how-tos","category-tech-tips","tag-drag-race-101","tag-dry-sump-oiling","tag-how-to","tag-mike-aguilar","tag-oiling","tag-tech-tips-2"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2014\/12\/02-99-1042-feature.jpg","jetpack_shortlink":"https:\/\/wp.me\/p42YSK-2yG","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/9838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/users\/28"}],"replies":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/comments?post=9838"}],"version-history":[{"count":8,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/9838\/revisions"}],"predecessor-version":[{"id":9863,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/9838\/revisions\/9863"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/media\/9851"}],"wp:attachment":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/media?parent=9838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/categories?post=9838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/tags?post=9838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}