R-series
R18Z4
R18Z4 SOHC i-VTEC
Displacement
1.8L (1799 cc)
Configuration
Inline-4
Power
145 PS (107 kW; 143 hp) @ 6500 rpm
Torque
175 Nm (129 lb-ft) @ 4300 rpm
Compression
10.6:1
Bore × Stroke
81.0 mm x 87.3 mm
Valvetrain
SOHC i-VTEC
Aspiration
Naturally aspirated
Fuel System
PGM-FI
OBD
OBD2
Redline
6800 rpm
Years
2012-2017
Factory Fitment
Honda Civic FK2 (Europe)
Notes
European R18 variant with a balancer shaft; 7100 rpm fuel cutoff.
Guides mentioning the R18Z4
Moderate
1-2 hours
Honda Civic 2.2 i-CTDi Diesel EGR Valve Removal and Cleaning
Expert
About 1 week (5 working days)
Honda Civic (8th Gen, R18) Engine Bay Wire Tuck
Moderate
3-4 hours
TSX Front Brake Upgrade for the 8th-Generation Honda Civic (LX/EX)
Difficult
3-5 hours
Diagnosing Dead ECT, CMP and Wideband O2 Signals After a K-Series Conversion Harness Swap
Moderate
1-2 hours
Honda Civic 1.8 Manual Transmission Fluid Change (8th Gen R18)