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

[calvinlc at earthlink.net]

Taka,

No, I wasn't saying that you stated that the V-12's sounded anythinkg like a
Camaro, I was simply trying to re-state what I had said in a previous e-mail
in a different way so that you understood what I was trying to say...I guess
I could have just said you should read more carefully :)  It's that whole
communicating through e-mail thing...sorry.

Anyway, just to set the record straight, the 289 Ford has EXACTLY the same
firing order as a Chevy small block.  Yes, I know the numbers are different,
1-8-4-3-6-5-7-2 for a Chevy and 1-5-4-2-6-3-7-8 for a Ford, but you have to
look at the difference in the way the cylinders are numbered.

Chevy    Ford
1            5
2            1
3            6
4            2
5            7
6            3
7            8
8            4

So if you do the replacement and shift the start point by one cylinder
(since it's a circle it doesn't matter) you will find that the firing orders
are the same.

The valve sizes, exhaust port designs, combustion chamber shrouding of the
valves and burn pattern, etc. have a lot more to do with the exhaust note.
That's why the brands maintain unique sounds even after exhaust system
changes, camshaft adjustments, etc.

--Calvin


  -----Original Message-----
  From: Taka Mizutani [mailto:t44tqtro at gmail.com]
  Sent: Sunday, April 15, 2007 6:07 PM
  To: calvinlc at earthlink.net
  Cc: Pasqualoni, James E; pkrasusky at ups.com; s-car-list at audifans.com;
wmahoney at disk.com
  Subject: Re: [s-cars] CEO car (Quattro... sort of)


  You took my statement and twisted it- show me a GM V-8 with the same
firing order and same crank orientation as a Ford.

  Those two factors make the biggest difference in the sound of the engine.
You can hear the difference from far, far away.

  Also, I never said you would mistake the sound of a Testarossa with a
Camaro or Mustang- I said I prefer the sound of a 12, be it flat or V, in
terms of the engine note. You should read more carefully.

  Taka



  On 4/14/07, calvinlc at earthlink.net <calvinlc at earthlink.net > wrote:
    To take your statement one step further there is no such thing (at least
in the real musclecar era) as a GM V-8...Pontiacs sound totally different
than a Buick, Chevy, Oldsmobile, etc.  I guess my point was that for those
who have not built a lot of American V-8's they could easily mistake a Ford
for a Chevy or vice versa.  BTW, this is especially true with open headers.
However, I very seriously doubt anybody would ever mistake a Testarossa
sound for a Camaro or a Mustang 5.Slow

    --Calvin


      -----Original Message-----
      From: Taka Mizutani [mailto:t44tqtro at gmail.com]
      Sent: Wednesday, April 11, 2007 5:49 AM
      To: calvinlc at earthlink.net
      Cc: Pasqualoni, James E; pkrasusky at ups.com; s-car-list at audifans.com;
wmahoney at disk.com
      Subject: Re: [s-cars] CEO car (Quattro... sort of)


      Big block GM doesn't sound anything like a Ford!

      A worked, oversquare 289 doesn't sound anything like anything that GM
makes.
      Different firing order, oversquare vs. undersquare, high-rpm vs. low
rpm.

      I think the Z06 sounds sweet, but it's a totally different sound than
the Ford- much more
      bass in the exhaust note (even w/ Corsa), the Ford has a lot more
midrange and treble
      in the sound.

      Closest thing in the GM camp would be a C3 LT-1 vette or a 302
crossram Camaro Z-28.

      I guess I just don't really like Ferrari V-8s- that flat-plane crank
gives it a rather dull sound.

      The flat and V-12s are, OTOH, a totally different experience, although
I still prefer the Lambo
      sound (I have a clip of a catless 6-carb Countach 5000QV that sounds
unreal).

      Taka