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Oil Pumps
ABOUT OUR DRY SUMP OIL PUMPS
Our Dry Sump Oil Pumps are available in “Standard Size” and our “SP Series“ small pump design. Introduced in 2001, our small pump design has a housing body size of just 2.4″ X 2.7″ with a weight reduction of 33% over our current standard-size oil pump. Roots Style rotors are used in the scavenge sections for both style pumps, and bronze spur gears are used for the pressure section. Drive and idler shafts are made from heat-treated alloy steel and precision ground to run in ball bearings front and rear with Teflon bushings supporting the inner loads to minimize the rotating friction. Precision ground stainless steel studs are used to align the dowel pin for a compact body size. The scavenge sections are all internally cross-ported together, so only a few scavenge outlet fittings are necessary. However, optional scavenge manifolds with -20 fittings can achieve our oil pumps' maximum capacity.
Between our two sizes of oil pumps, we currently have over 4000 unique configurations in use.
ROOTS-STYLE ALUMINUM SCAVENGE ROTORS
Aluminum rotors reduce the weight by up to 25% over conventional steel gear and gerotor oil pumps. The aluminum housings and rotor combination, all made from 7075 T6511 billet aluminum, maintain a constant internal clearance over the entire operating temperature range. Our two-lobe Roots Style design provides up to 50% more volumetric capacity, greater hydrodynamic sealing, and maximum crankcase vacuum than other dry sump oil pumps on the market. In some selected models, our aluminum rotors are available in either our straight or high helix twisted rotor design.
AIR/OIL SEPARATORS
Dailey Engineering oil pumps with the pressure section in front of the pump can be fitted with an optional Air/Oil Separator. The Air/Oil Separator routes pure oil (rather than foamy oil) back to the oil tank. This centrifugal hydrodynamic device mechanically separates the air from the foamy oil and then routes pure oil and air back to the tank through separator lines.
Dailey Engineering Air Separator vs Competitor Without Separator
Check out a video of our air oil separator in action
It is not just a blow-by vent but truly takes the air out of foamy oil. This is shown on a very high-end motor with significant aeration problems, which was the only cure to keep bearings alive.
"SP Series"
This revolutionary design introduced in 2001 allows this “Small Pump” with a body size of 2.4″ X 2.7″ to match the flow of our full-size oil pump. Combined with a weight reduction of 33% from our full-size oil pump, we have created a 6-stage NASCAR oil pump that weighs less than 7 lbs. and still outperforms other standard full-size pumps on the market today. This pump operates at speeds up to 10000 rpm in drag racing applications and 7500 rpm in endurance racing applications. We have over 1000 unique configurations in use today, categorized below by the number of stages.
"Classic Series"
The “Classic Series” line of dry sump oil pumps are based on the “Standard Series” oil pumps and are the typical industry standard configurations for drag racing. This economical line of pumps has been made possible by using new and efficient manufacturing methods and by producing the parts that make up the classic pumps in large volumes. You don’t have to settle for a spur gear, or gerotor-style scavenge oil pump for your racing engine. For an economical price, you can have a Dailey Engineering Roots Style Dry Sump Oil Pump built with the same quality and standards as their full line of modularly designed custom dry sump oil pumps.
Custom Pumps
Dailey Engineering has integrated additional pumps into dry sump systems, such as torque converter oil pumps, fuel pumps, and water pumps. We have also manufactured stand-alone fuel pumps, differential pumps, and water pumps for custom applications.
Dailey Engineering offers rapid prototyping for any configuration you need. Our pumps are designed with Pro-Engineer solid modeling and manufacturing software, ensuring precision and reliability. At Dailey Engineering, we deliver superior pump designs with a level of excellence once reserved for race-bred engines. When it comes to Dry Sump oil pumps, you won't find a better option on the market today.