[s-cars] CEO car (Quattro... sort of)

[Ingo Rautenberg]

Taka et al:

Firing orders of V8's (from various sources):

Audi V8 4.2 (guessing 3.6 & 3.7 same) 1-5-4-8-6-3-7-2
AMC (most V8 engines): Clockwise 1-8-4-3-6-5-7-2
Buick (most V8 except HEI): Clockwise 1-8-4-3-6-5-7-2
Chevrolet: Clockwise 1-8-4-3-6-5-7-2
Chrysler (including Hemi): Clockwise 1-8-4-3-6-5-7-2
Ford (5.0L HO, 351W, 351M, 351C, 400): Counter-clockwise 1-3-7-2-6-5-4-8
Ford: Counter-clockwise 1-5-4-2-6-3-7-8
Oldsmobile (1967 and up): Counter-clockwise 1-8-4-3-6-5-7-2
Pontiac (most 1955-81 V8 engines): Counter-clockwise 1-8-4-3-6-5-7-2
HTH

Ingo

On Apr 16, 2007, at 9:57 AM, s-car-list-request at audifans.com wrote:

> From: "Taka Mizutani" <t44tqtro at gmail.com>
> Date: April 16, 2007 9:19:23 AM GMT-04:00
> To: "calvinlc at earthlink.net" <calvinlc at earthlink.net>
> Cc: s-car-list at audifans.com
> Subject: Re: [s-cars] CEO car (Quattro... sort of)
>
>
> Calvin-
> That really doesn't make a lot of sense- if what you state below  
> are the
> factors that affect exhaust note, then radically different engine  
> designs
> shouldn't sound alike at all.
>
> Ford modular 4.6 and 5.4 motors sound very similar to small-block  
> pushrod
> Ford engines- e.g. 289, 302, 351, etc. How can that be? The combustion
> chamber, valve design, etc. are radically different between a OHV,  
> SOHC and
> DOHC design. The current 3v motor also sounds nearly the same. Doesn't
> matter whether the engines have log manifolds, unequal-length headers,
> equal-length headers, they still sound like Fords, nothing like a  
> Chevy
> engine.
>
> Considering that in a OHV pushrod engine, the 2v cylinder head can  
> only be
> optimized so far in running pump gas and nothing truly exotic being  
> used, it
> doesn't really make sense that a LS-6 and a 351W don't sound similar.
>
> The Nextel Cup cars are even more similar, but you can definitely  
> hear the
> difference between a Ford and a Chevy. Much more difficult to tell  
> between a
> Dodge and a Chevy.
>
> Don't take this as a jab- I'm trying to understand what you're  
> saying but
> I'm not getting it- if you care to elaborate further, I'm all for it.
>
> As for Audi content- the Audi 4.2 sounds a lot like a Ford, BMW or  
> Nissan
> V-8. I thought this was due to firing order. I can't remember off- 
> hand what
> the Audi S4 uses for manifolds, but the BMW V-8 uses equal-length
> tuned-pulse headers (in the E39 M5) and still sounds very similar  
> to the
> Audi and the Nissan (in the Titan it uses a log manifold).
>
> Taka