engine harshness at high revs

Phimosis · 06-28-2009, 01:43 PM

If you take a Porsche flat six or a Chevy LSx V8 to the rev limiter, it sounds like a beautiful, hard working sports car engine that builds like a crescendo all the way to the fuel cutoff, both inside the car and out.

The 370z has a muted exhaust tone that has the overall boring soundtrack of the vq engine that we all know from Muranos, Altimas, etc, but with some of the qualities of the 70's straight sixes. You get that sound up until 5,000 rpm or so when the cacaphony of engine clatter starts to become as loud as the exhaust. An aftermarket exhaust helps that, but overall, it's still pretty noisy under the hood. A similar ammount of vibration is transmitted back through the steering, pedals and shifter, but for me, it's mostly the noise.

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06-28-2009, 01:43 PM	#11 (permalink)
Phimosis Enthusiast Member Join Date: May 2009 Location: Oildale, CA Posts: 412 Drives: 2013 911 4S Rep Power: 418	If you take a Porsche flat six or a Chevy LSx V8 to the rev limiter, it sounds like a beautiful, hard working sports car engine that builds like a crescendo all the way to the fuel cutoff, both inside the car and out. The 370z has a muted exhaust tone that has the overall boring soundtrack of the vq engine that we all know from Muranos, Altimas, etc, but with some of the qualities of the 70's straight sixes. You get that sound up until 5,000 rpm or so when the cacaphony of engine clatter starts to become as loud as the exhaust. An aftermarket exhaust helps that, but overall, it's still pretty noisy under the hood. A similar ammount of vibration is transmitted back through the steering, pedals and shifter, but for me, it's mostly the noise.