The Honda HR-414E, HR-417E and Honda HR-420E are a series of prototype, four-stroke 2.0-litre single-turbocharged inline-4 racing engines, developed and produced by Honda for the Super GT series and Super Formula under the Nippon Race Engine framework. The HR-420E engine is fully custom-built.
Versions HR-414E (2013–2016) HR-417E (2017–present) HR-420E (2020–present)
Applications Dallara SF14 Dallara SF19 Dallara SF23 Honda NSX Concept-GT Honda NSX-GT Honda NSX-GT "Type S" Honda Civic Type R-GT Honda HRC Prelude-GT
See also Toyota RI engine, similar engine also developed under the Nippon Race Engine framework Nissan NR engine, similar engine also developed under the Nippon Race Engine framework
References