[DeTomaso] Is there any clear advantage of one coil per cylinder?

[Mark McWhinney]

I have a 1993 300zx non-turbo 3.0 liter V6 with a coil per cylinder (That is
stock.) It makes 222 Hp which was not shabby in its day.  I don't know to
what degree if any the coil per cylinder helped or hindered performance.  Of
course, it does add expense at $90 a pop.

I had heard that the fire-on-exhaust done for pollution control does cost
the Corvettes some Hp.  I poked around on Google to confirm but did not turn
up anything.  As usual, I leave it to better minds to talk about it.

BTW, in poking around Google, I came across a good introductory article on
turning for power.  It lays out the general principles in a way even I can
understand.  It is written for Harleys but the general principles APPLY to
anyone who wants a good street engine with low end torque.  (Harleys are the
Panteras of the bike world, ya know. :->)

http://calsci.com/motorcycleinfo/HP2.html



-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Ken Green
Sent: Tuesday, September 25, 2007 6:23 PM
To: detomaso at realbig.com
Subject: [DeTomaso] Is there any clear advantage of one coil per cylinder?

I think most new cars share each coil between 2 cylinders, but the LS-1
family, and I assume others, have one coil for every cylinder.  These aren't
screaming high RPM motors so I'm wondering if there is a cost to firing at
the end of the exhaust stroke?
   
  Ken
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