The Integra Type R features an advanced 1.8-liter, 195-horsepower, dual overhead cam, 16-valve inline 4-cylinder engine equipped with the Variable Valve Timing and Lift Electronic Control (VTEC) system pioneered in the Acura NSX.
Its additional horsepower, which is 25 more than the 170-horsepower Acura Integra GS-R, is the result of key technological achievements such as:
- High-compression, low-friction pistons
- High-performance camshafts and valve gear
- Larger throttle body and single-port intake manifold
- Hand-polished intake and exhaust ports
- High-volume induction and exhaust system
The engine also features Programmed Fuel Injection (PGM-FI), a highly rigid crankshaft with eight full balance weights, a crankshaft reinforcing bridge, an oil cooling system and oil jet piston cooling, twin-spring intake and exhaust valves, a highly rigid integrated aluminum die-cast engine stiffener, and a number of other technologies to increase performance while maintaining reliability and durability, along with smooth operation.
To get the most out of the engine’s added horsepower, the Type R also features a close-ratio, 5-speed manual transmission and a new limited slip differential. The development emphasis was placed on dramatically increasing performance at high rpm. This emphasis resulted in an engine with a significantly different character than the Integra GS-R, further reinforcing the Type R’s image of a limited production, ultra-high performance sports coupe.
Putting out 195 horsepower at 8000 rpm, and 130 lbs-ft of torque at 7300 rpm, the Type R engine was the most powerful normally aspirated mass-produced automobile engine per liter ever produced (108 horsepower per liter) for the United States from 1997 to 1998. And its relatively long stroke and high redline give it the highest piston speed of any automobile engine in the world, even faster than the legendary World Championship Honda Formula One and IndyCar engines.
Key performance features of the Integra Type R include:
- 195-horsepower 1.8-liter dual overhead cam 16-valve VTEC inline 4-cylinder engine that provides more horsepower per liter than any normally aspirated mass-produced engine in the U.S.
- Hand-polished intake and exhaust ports and single-port intake manifold
- An exhaust system with a larger diameter to allow larger volume flow
- Overall vehicle weight reduced by 93 Ibs. (42 kg)
- Torque-sensitive helical limited slip differential
- Lower overall vehicle height (by 15 mm) and aerodynamic refinements that result in 30% less lift (CI) and 1% less drag (Cd)
- Racetrack-calibrated suspension and high-performance tires
- Larger disk brakes with performance-oriented calipers
- Refined Anti-Lock Braking System (ABS)
- Reinforced unit body structure
A number of other features were added to heighten the sporty appeal of the Type R, including:
- Chin spoiler, wing-type rear spoiler, and body-colored side sills
- Lightweight aluminum alloy wheels that match the Type R’s exclusive color — Championship White
- Sport-style seats
- Leather-wrapped steering wheel and shifter knob
- Exclusive Type R ignition key
- Special serial number plate affixed to the center console
- Carbon fiber-like instrumentation design with amber illumination
In the true spirit of racing, a select number of comfort and convenience features on the Integra Type R have been eliminated in an effort to minimize the vehicle’s overallweight. These include items such as a sunroof, vanity mirrors, cruise control, rear window wiper/washer. Air conditioning becomes optional equipment. Other items that haTie been eliminated for weight considerations include dashboard insulator, transmission mount , drive shaft and shifter dynamic damper, and meltsheet for the floor stamping.
Key safety features of the Type R include:
- Standard driver’s and front passenger’s Supplemental Restraint System (SRS) air bags on all models
- 3-point seat belts
- Projector beam headlights
- Side-impact protection