What engine does the 1990 Integra LS have?
The 1990 Integra LS is powered by a 1.8-liter inline-four engine known as the B18A1, a non-VTEC DOHC unit that delivers roughly 130 horsepower.
Engine details
The second-generation Integra lineup introduced in 1990 used the 1.8-liter B18A1 engine for the LS and GS trims in the U.S. market. This engine is a double overhead camshaft (DOHC) four-cylinder with multi-point fuel injection and non-VTEC technology, distinguishing it from the higher-performance GS-R and Type R variants of the era.
Here are the core specifications of the engine used in the 1990 Integra LS:
- Engine code: B18A1
- Displacement: 1.8 liters (approximately 1,798 cc)
- Configuration: Inline-4
- Valvetrain: DOHC (double overhead cam)
- Fuel system: Multi-point fuel injection
- Power (approximate): ~130 horsepower
- Torque (approximate): ~120 lb-ft
Note: horsepower and torque figures can vary slightly by market and emissions specifications, but the B18A1 is consistently cited as the 1990 Integra LS engine.
Design and performance context
The B18A1 engine represented a shift toward more refined, broader-performance power in the Integra lineup, with the LS offering a balance of daily usability and capable acceleration. While not a VTEC-equipped engine, the 1.8-liter four provided smooth torque delivery and reliable reliability that characterized early 1990s Honda/Acura compact performance cars.
Why this matters for the car
Cognizant buyers and enthusiasts note that the 1990 Integra LS’s 1.8L B18A1 engine paired with the five-speed manual or optional automatic transmission gave the car its characteristic everyday usability with respectable mid-range pull. It set the benchmark for the LS trim before higher-performance variants like the GS-R would arrive with more aggressive powerplants.
Summary: The 1990 Integra LS uses a 1.8-liter inline-four, B18A1 DOHC non-VTEC engine, producing about 130 horsepower and around 120 lb-ft of torque, a setup typical for the LS/GS trims of that generation.
What engine came in Integra LS?
Third generation (1993)
| Series DB6-DB9, DC1-DC2, DC4 | |
|---|---|
| Powertrain | |
| Engine | 1.6 L ZC I4 (DB6, DB9, DC1) 1.8 L B18B DOHC I4 (DB7, DC4) 1.8 L B18C DOHC VTEC I4 (DB8, DC2) |
| Transmission | 5-speed close-ratio manual 4-speed automatic (with 2,400 rpm torque converter) |
| Dimensions |
What does LS mean on Integra?
The LS is very similar to the latter three in terms of performance, as they all come with the same B18B1 non-VTEC engine. It generates 142 hp at 7000 rpm. The LS trim of the Integra is considered to be the most preferred of all the trims. The abbreviation stands for 'Luxury Sport', and was available in coupe and sedan.
Was the 1990 Integra a fast car?
The engine is a small 4 cylinder, but with the light weight of the car and the dual overhead camshaft, it is a fast car.
What engine does a 1990 Acura Integra have?
Engine
| Base engine size | 1.8 L |
|---|---|
| Cylinders | Inline 4 |
| Base engine type | Gas |
