Honda R engine
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The Honda R series Inline Four Cylinder engine is new for the 2006 Honda Civic (Non-Si). It displaces 1.8 L (1799 cc), is fuel injected, has an aluminum-alloy cylinder block and cylinder head, is a SOHC 16 valve design (4 valves per cylinder), utilizes Honda's i-VTEC system, and produces 138 hp (103 kW) @ 6300 rpm and 128 lbf·ft (174 N·m) @4300 rpm SAE net (torque), with the redline at 6800 rpm. The R series is undersquare with a bore and stroke of 81 x 87.3 mm (stroke ratio of 0.93); it has a compression ratio of 10.5:1, features a "drive by wire" throttle system, and is quite economical, with its CARB ULEV-2 (Ultra Low Emissions Vehicle) rating, and 30/40 city/highway mpg (U.S. gallons). It also uses the same computer (ECU) controlled direct ignition as the Honda K-series engines; it has no distributor. The R Series engine is new, and thus relatively little technical information has circulated so far. The OEM service manual is available at HELM INC.
[edit] External links
- Technical article on the Honda R-series R18A1
- Honda's New R18A Engine (Temple of VTEC Asia)
- SOHC i-VTEC on the R18A (Temple of VTEC Asia)
- Dyno Results the new 8G Asian Civic 1.8S (Temple of VTEC Asia)
