20R/22R/RE Crank Scraper (Full Perimeter)

Crankshaft Scraper

(Full Perimeter)

During regular engine operation, a significant amount of oil adheres to or becomes entrained in, a cloud surrounding the spinning bottom end. This oil eats up the horsepower your engine is making by increasing the rotating mass and also creating parasitic drag. A crank scraper mechanically strips off excess oil by coming close to, but not touching, the moving crankshaft and rods. It also interferes with the pressure differential that draws oil into the windage cloud.

Our crank scrapers are constructed from steel and include installation instructions. The scrapers are installed between the oil pan and engine block or along with the main bearing caps. Some fitting to your engine may be required, and the procedure for carefully checking this is explained in the installation instructions.

What are some of the benefits of Crank Scrapers?

• Reduced power loss due to excessive drag from oil windage
• Help reduce engine damaging oil-foaming.
• Help avoid oil starvation by keeping the oil in the pan during hard braking and turning as well as during off-road driving.
• Help to cool critical engine parts by quickly returning heated oil to the sump.
• Help to prevent the cylinder walls from being overloaded with oil.
• It can help with fuel efficiency.

Do they work? Yes! Crank scrapers in various forms have been in use for at least 40 years -- and not just in racing! More importantly, they are currently in use in a variety of OEM engines of both large and small displacement -- from relatively low RPM V-8 engines to high RPM straight fours. Most auto enthusiasts are surprised to learn just how common they are. In short, it is an extremely well-proven technology that is often not recognized.