Overhead cam engines

  • 25-Mar-2011 10:04 EDT

The SP Series is the latest addition to Subaru’s line of air-cooled engines, offering advanced overhead cam (OHC) technology for improved performance and longevity. Designed for light commercial and residential engine markets, SP Series engines provide increased power and easier starts while minimizing noise and emissions, making them suitable for use with pressure washers, generators, pumps, go-carts, and various lawn and garden equipment. The Series includes the 5.7-hp (4.2-kW) SP170 169 cm³ displacement engine as well as the SP210 211 cm³ unit offering 7 hp (5.2 kW). Both feature chain-driven OHC technology and a hemispherical combustion chamber for improved engine performance. Intake and exhaust valves are positioned to lower resistance for the air/fuel mixture, while a high compression ratio produces greater power and torque. Fewer moving parts and rigid mufflers reduce mechanical noise.

HTML for Linking to Page
Page URL
Rate It
0.00 Avg. Rating

Read More Articles On

Christopher Grundler, the Director of OTAQ for the U.S. EPA, answered questions about Phase 2 rule-making for heavy trucks, global harmonization of emissions regulations, and his outlook for a new national NOx standard. Grundler will be the featured speaker on opening day of the SAE 2017 Government/Industry Meeting taking place January 25-27 in Washington D.C.
London Mayor Sadiq Khan unveiled the world’s first double-decker hydrogen bus at the end of November as part of a commitment to phase out purchase of new pure diesel buses in the capital's fleet beginning in 2018.
The engine maker used the ConExpo 2017 stage to announce its intention to produce a dual-fuel capable (natural gas and propane) off-highway engine by mid-2018, leveraging its already-in-production on-highway CNG truck engine.
Hyliion's electric-drive system hybridizes the trailer portion of the tractor-trailer combination and uses regenerative braking to capture power, possibly saving the trucking industry billions in fuel costs. The company recently won the grand prize in the 2016 "Create the Future" Design Contest for the technology.

Related Items

Training / Education
Training / Education
Training / Education
Training / Education