From Acura press: The intention in creating the Acura NSX, first introduced for the 1991 model year, was to produce a hand-built, exotic, mid-engine sports car that would establish entirely new levels of prestige, performance, refinement, drivability and reliability.
The aluminum-bodied NSX defined a new interpretation of the exotic sports car through state-of-the-art, lightweight technology. As the NSX evolved during the 1990s, it was continually hailed as a technological showcase.
The NSX-T model introduced during the 1995 model year, which features a removable roof panel, broadened the appeal of the NSX. It also succeeded in maintaining the extremely high levels of performance and sophistication established by the NSX coupe. Technological achievements include an optional Formula One-inspired Sequential SportShift' automatic transmission with a unique steering column-mounted electronic shifter; a drive-by-wire throttle system and standard variable, electric power-assisted steering (EPS), a compact and efficient system pioneered in the first-year NSX equipped with automatic transmission.
The 1997 NSX/NSX-T took a giant step forward in performance with several major enhancements - the most notable being a larger, more powerful 3.2-liter, 290 hp, V-6 engine with a 6-speed manual transmission.
The standard engine on the NSX is an all-aluminum, 90-degree, 3.2-liter (3179 cc), dual overhead cam, 4 valve-per-cylinder V-6 that produces 290 hp at 7100 rpm and 224 lb-ft of torque at 5500 rpm. It is mated to a 6-speed close-ratio manual transmission. Redline for this engine is 8000 rpm.
The only factory option for the NSX is an electronically controlled 4-speed automatic transmission that comes with an all-aluminum, 90-degree, 3.0-liter (2977 cc), dual overhead cam, 4 valve-per-cylinder V-6 with 252 hp at 6600 rpm and 210 lb-ft of torque at 5300 rpm. Redline for this engine is 7500 rpm.
An exclusive, electronically controlled Variable Valve Timing and Lift Electronic Control (VTEC™) system optimizes volumetric efficiency at both high and low engine speeds.
A unique Variable Volume Induction System changes the configuration of the intake system in conjunction with varying engine speeds, working with the VTEC system to broaden the torque curve and increase peak power output.