Re: Why not use crankshaft weights on any vee engine?



bobj wrote:
ray wrote:
Steve wrote:

No v6 is ever going to be a smooth as an inline six or v8, but since the length of an inline six is incompatible with most modern small car designs and a v8 is too inefficient when made that small, it comes down to a choice of v6 or inline 4. Given that, the v6 handily wins the smoothness contest.

I wonder what a 2.5L V8 would sound like. Would it still sound like a V8?

Ray



a 2.5 V-8........ methinks a Daimler-SP250 has one that size. It uses the old 60's aluminum Buick V8 that GM sold them. Sounds pretty good too. The sound produced by any engine is directly related to some ratio having to do with the connecting rod length and the engine stroke.

Well.... that, and cam timing, lobe-center separation, ramp rate, intake/exhuast event timing, ignition timing, firing order, exhaust valve configuration, intake plenum volume, intake/exhaust port size/shape, exhaust manifolding, downstream exhaust plumbing.....

In the grand scheme of things, rod-ratio really is a fairly minor contributor to engine sound.

What truly amazes me is that with all these variables, all 90-degree crank v8s still manage to have an identifiable sound that says "I'm a 90-degree crank v8."


.



Relevant Pages

  • Re: Why not use crankshaft weights on any vee engine?
    ... comes down to a choice of v6 or inline 4. ... intake/exhuast event timing, ignition timing, firing order, exhaust ...
    (rec.autos.tech)
  • Re: potato-potato
    ... But, they do sound sweet. ... he hears the crisp exhaust note of a ... Harley engine--a sound one Honda spokesman characterized as, no kidding, ... their design engineers are asked to create products that are technologically ...
    (rec.motorcycles.harley)
  • Re: Exhaust sound differences
    ... a V-8 with a 90 degree crank and a conventional dual exhaust by design ... will exhibit an exhaust sound with a lot more lowe frequencies than ... will produce lower frequencies than an eight. ...
    (rec.autos.driving)
  • Re: Exhaust Problem?
    ... sound is not there when you first turn the car on and only starts up ... Does anyone know what the symtoms of a faulty exhaust are, ... giving the puffing sound and picks up when running a bit faster so ... then compression then valve sealing. ...
    (uk.rec.cars.maintenance)
  • Re: Exhaust Problem?
    ... Does anyone know what the symtoms of a faulty exhaust are, ... It sounds as though one cylinder is not firing, ... giving the puffing sound and picks up when running a bit faster so ... then compression then valve sealing. ...
    (uk.rec.cars.maintenance)