How does i-VTEC work in Honda R18A?
So the Rseries SOHC i-VTEC is a fuel economy implementation that works by targetting at the reduction of pumping losses in the engine in driving conditions which are most conducive to fuel economy. Now the R18A engine can truly be seen as a ‘dual mode’ engine with clear-cut normal driving and ‘economy driving’ modes.
What kind of engine does a Honda R18A have?
Now normal driving conditions means a torquey and quite powerful R18A engine, thanks to the relatively aggressive high (low) cams and the new variable length intake manifold and other friction reducing technologies in the engine.
Which is better Honda Civic or Honda R18A?
According to Honda, they have managed to design the R18A to deliver an off-the-line acceleration performance equivalent to a 2.0-liter engine while also delivering a fuel economy approximately 6% better than the current 1.7-liter Civic engine (through its low friction loss technologies).
What does dBW do on a Honda R18A?
The new DBW (Drive By Wire) system on the R18A now constitutes a major and crucial part of the R18A’s SOHC i-VTEC mechanism. Firstly, it provides the high-precision control over the throttle valve required while the valve timing is being changed over, ensuring smooth driving performance that leaves the driver unaware of any torque fluctuations.
How many horsepower does a Honda Civic r18z have?
R18Z1 – 141 hp (104 kW) at 6,500 rpm, 128 lb-ft (174 Nm) at 4,300 rpm. The engine has a 10.6:1 compression ratio. You can find this engine in the ninth generation Honda Civic.
So the Rseries SOHC i-VTEC is a fuel economy implementation that works by targetting at the reduction of pumping losses in the engine in driving conditions which are most conducive to fuel economy. Now the R18A engine can truly be seen as a ‘dual mode’ engine with clear-cut normal driving and ‘economy driving’ modes.
Is the Honda R18 engine rated at ULEV-2?
Thanks to these big improvements, the R18 engine is rated at California Air Resources Board (CARB) ULEV-2 (Ultra Low Emissions Vehicle). The i-VTEC system allows, when it’s needed, to perform like a 2.0L engine while also delivering a fuel economy on a par with that of a 1.5-liter engine.
Now normal driving conditions means a torquey and quite powerful R18A engine, thanks to the relatively aggressive high (low) cams and the new variable length intake manifold and other friction reducing technologies in the engine.