B16a OBD1Engines:

B16a engine

The Honda B16A OBD1 is the next evolution of Honda’s legendary B-series, building on the foundation laid by the earlier OBD0 version. Found mainly in 1992–1995 JDM Honda Civics, CRXs (del Sols), and Integras, this version came with several refinements in both performance and technology.

One of the most noticeable differences is the switch from a cable transmission to a hydraulic setup, which offered smoother engagement and better drivability. The OBD1 system also introduced improved electronics, making tuning and diagnostics more flexible than before — a big plus for enthusiasts doing swaps or performance builds.

Key Features & Identifiers

  • Hydraulic transmission (instead of cable-actuated)
  • Higher compression ratio — around 10.4:1, depending on the exact model
  • “PGM-FI” on the intake manifold and larger “DOHC” text on the valve cover
  • OBD1 ECU setup (P30) for more efficient fuel and ignition mapping
  • Improved head design and VTEC engagement for slightly better midrange response

In terms of performance, the OBD1 B16A produced around 168 horsepower at 7,800 RPM and 116 lb-ft of torque, giving it a modest but noticeable bump over the earlier version. It still retained that signature high-revving B-series feel and the iconic VTEC crossover that made these engines so beloved.