Not exact matches
By varying and strategically directing the amount of exhaust pulse used to run its turbocharger, the 2.5 - liter Skyactiv - G
engine can spool up more
quickly at low rpm.
You want the turbo to spool up more
quickly at low rpm for quick response, so the system sends
engine exhaust to smaller ports to increase boost pressure.
Jump on the gas from a light and there is a little bit of turbo lag
at the
lower revs, but boost builds
quickly and the
engine has good response above 3,000
rpm.
Compared to the significantly larger normally - aspirated 2.4 - liter
engine that was standard in the previous - generation Civic Si (model year 2015), the 2017 Si
engine develops the same peak horsepower (205) but
at a much
lower and more
quickly accessible
rpm (5700
rpm compared to 7000
rpm).
Its smooth shifts come more
quickly, helping acceleration, and it lets the
engine turn
at a
lower rpm on the highway, giving it the same fuel economy as the Ford F - 150's 3.5 - liter EcoBoost
engine.