The Integra Type R is equipped with a 1.8-liter DOHC VTEC in-line 4-cylinder (B18C) engine. In the JDM Type R this engine produces at 8,000 rpm, whereas in the US models it produces at 8,000 rpm and of torque at 5,700 rpm. JDM cars and cars sold in other international markets came with an 11:1 compression ratio whereas the US Integra Type R has a compression ratio of 10.6:1. There were numerous differences between the Type R engine and the DOHC VTEC engine available in other Integra models (GS-R) but the increased power was primarily due to the higher compression, larger throttle body, high lift camshafts and high-volume exhaust manifold.