"Welcome to Dailey Engineering, where precision meets performance in every drop. Dailey oil pumps are crafted with meticulous attention to detail, engineered to deliver unparalleled reliability and efficiency in the heart of your engine. From drag racers to high-performance street machines, Dailey pumps are trusted by enthusiasts and professionals alike to keep engines running smoothly under the most demanding conditions.

Discover the difference with Dailey Engineering Oil Pumps:

  • Precision Engineering: Each pump is crafted with precision machining and cutting-edge technology to ensure optimal oil flow and pressure regulation.
  • Unrivaled Performance: Experience enhanced engine performance and longevity with our pumps, designed to meet the demands of high-performance applications.
  • Proven Reliability: Trusted by top racing teams and automotive enthusiasts worldwide, our pumps deliver consistent performance you can rely on.
  • Custom Solutions: Whether you need a standard pump or a custom solution tailored to your specific requirements, we have the expertise to deliver.

Join the ranks of champions and enthusiasts who trust Dailey Engineering for their oil pump needs. Explore our range of products and experience the difference today."

We custom order our Dailey Oil Pumps to suit your requirements!

Get your hands on a Kit today, or opt for an individual oil pump. When it comes to Dailey Engineering, look no further – this is your destination. We tailor each pump to your exact specifications.

Choose from our range of Custom Quickbitz Kits, available in Single Stage , 5 Stage, or 6 Stage configurations, each with a head vac section.

Our dry sump pumps also feature their own dedicated turbo section.

Need help making a selection , feel free to give us a call or reach out to us online.

VIEW DAILEY PRODUCTS

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.

"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.

"Standard Series"

The "Standard Series" dry sump oil pumps are designed using the industry-standard pump body size, featuring a ⅝” drive shaft, and typically operate at approximately 50% of the engine speed.

"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.

Motorcycle Pumps

Dailey Engineering sponsors Formula SAE teams worldwide, which drives many of the designs for the 600cc engine category. We have many configurations, so please contact us with your specific application.

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.

OIL PANS

CUSTOM DRY SUMP OIL PANS

At Dailey Engineering, we specialize in designing and manufacturing custom Dry Sump Oil Pans from billet 6061 T6 aluminum. Our “Signature Series” integral Dry Sump Oil Systems feature an innovative design where the oil pump bolts directly to the oil pan. This integration eliminates the need for A/N lines between the oil pump and the oil pan, making the system more efficient and reducing the weight, cost, and complexity of external scavenge A/N lines. The billet construction allows us to precisely shape the interior of the pan for optimal oil scavenging and windage control.

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VERSATILE MODULAR OIL PANS

The “Signature Series” also includes modular oil pans that mount the oil pump using a secondary manifold. This design incorporates integral oil transfer passages, allowing for flexible pump configurations and positions. Whether you need to comply with specific regulations, add an air/oil separator, or optimize space, our modular design can be adapted to meet your requirements. This flexibility ensures that you get a custom solution tailored to your needs.

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EXTENSIVE RANGE OF DRY SUMP SYSTEMS

With over 200 Dry Sump Systems available, Dailey Engineering offers a wide array of options to meet performance and packaging needs. Explore our systems to find the perfect fit for your application.