R.E. Mazda Skyactive Sounds.... that's because of the Direct Injection
R.E. Honda K Engine - that's a major part of the draw of a K-Series engine.
Yeah maybe, though I think a 17 Civic 2.0 I test drove before still sounded better and that was DI. Haven't spent a lot of time with DI I4 engines to know if they all sound like that.
The sounds tube seemed to bring in more of the harsh sounds probably related to the direct injection. I swear it sounds a little better now but could be a placebo effect.
That's one thing with DI I4 engines, there is no place to place a sound-deadening material to mute the DI ticking sounds, and to people who are not familiar with DI engines, that sound can be concerning.
On Gen V LT1, there is a piece of foam that goes above the valley of the V, just below the intake manifold to deaden the DI ticking sound so it's not nearly as audible.
It's like a diesel on cold starts and doesn't sound great when hot, either.
Agree 100%. Miss Peanut sounds like a diesel with pneumonia on winter mornings.
That's not too weird, actually, given how Skyactiv works. DI, high compression ratio are both characteristics of a diesel engine. The 2.5T is practically a diesel engine that burns gas, with a turbo and a torque/power curve to match.
And then there is the VVT, which adjusts the exhaust valve timing to reduce cold emissions and warm up the car quicker.
