nothing sweeter sounding than a Porsche boxer six winding up
I wondered when we'd get to that.
I've made my thoughts on "the sound" as a metric of anything tangible known before. The automotive press (or what passes for it these days) all wax glassy eyed about "the sound" a car makes, as if there's no greater virtue for an engine to possess.
There is. Power. Power and reliability. The Porsche flat 6 is not especially powerful and pretty horribile from a reliability standpoint. And cost. Any engine Porsche builds or has built is horribly expensive for the power and reliability obtained from it.
What they do build are very, very special cars - a nearly ideal combination of beautiful shape, careful and thoughtful assembly, and otherworldly ride and handling. They ooze "quality". They're worth what the sell for, but the engines themselves haven't been a strong suit since... well ever (3.2L Carrera engine excepted). The early 6s had problems with the engine cases, the cam chains were always klugy (until they figured it out with the 3.2), the 964 and 993 were a mess of complexity. And the 996? The 996 and 986 were time-bombs, waiting to eat themselves. The ship was righted with the 997.1 and 987.1, but the damage to the legacy of the Sainted German Engineer (IMHO) has been done. They've made as many mistakes as the powertrain engineers at GM, and maybe more.
Scratch that, definitely more.
From my practical vantagepoint, Danny's exactly right - if the engine in any Boxster, Cayman, or water-cooled 911 blows, there's one logical choice for replacement: an LS/LT Chevrolet. That makes me a mullet-wearing, mouth-breathing, NASCAR watching, blue-collar fanboy, and it's sacrilege to the keepers of the flame - which is why it's so very, very appealing to me.
I'd love to roll into a PCA meeting, with my gen-you-wine Porsche VIN, and have a modified LS engine sitting behind the seats to cause the faithful to soil their bermuda shorts. I'd make sure it was displayed so everybody could see it, and then I'd use it to blow the doors off of every single vehicle there.
Such a device would be rendered essentially worthless as a museum piece, which is another reason to love it.
Back to the sound - any engine in a good state of tune, from a 125 hp 2-stroke single coming on the pipe to a 1000 hp supercharged pushrod V8 sounds fantastic. I've come to LOVE the "angry bumblebee" sound of a 2L pushrod air-cooled flat 4 in the heart of the powerband. I'll agree that an air-cooled Porsche 6 spinning up to 6500 RPM sounds like angels singing, but it also sounds a lot like something really, really expensive might happen soon (at least to me, anyhow).
A cammed V8 with all the appropriate go-fast stuff spinning that same 6500 RPM sounds pretty special as well.