In a message dated 8/31/2006 12:30:45 AM Eastern Daylight Time,
chris.buckley@tz.knightfrank.com writes:
> Any comments on the (all in old distributor) Petronix ignition system
Chris,
I've been using it on my TR6 since 2003 with no problems and much praise. In
addition to just simply replacing points, the Petronix system helps decrease
the effects of fluctuating dwell angle (and timing to some extent) that a
wobbly distributor shaft imposes on the points.
In the "old days" (the '60s for me!!) when my rust bucket '58 TR3A was my
daily driver for college, dates, etc. we all used standard ignition parts. As
long as you maintained them and replaced them at reasonable intervals, your car
ran fine. But, today, many of our cars have distributors with some wear in
the shaft that causes shaft wobble or the shaft lobes aren't quite as defined
as
they once were. The wobble (depending on how bad it is) can change the dwell
angle which utlimately affects the strength of the spark. Since Petronix and
other systems like it don't rely on a rubbing block from a point set to open
and close points, a little wobble isn't a trouble maker.
Petronix versus standard really becomes less of a debate in my opinion when
either you've got an ailing, tired motor (low compression, blowby, etc.) or the
other extreme - a rebuilt motor with performance modifications. In either
case, I believe from experience that replacing a standard ignition system with
a
Petronix (or equivalent) will help your motor's driveability, power response
and fuel economy. If you go with a Petronix, buy a high voltage output
coil.....Lucas, Petronix all are good choices.
Hope that helps.
Chip Krout
Delaware Valley Triumphs, Ltd.
Skippack, PA USA
'76 TR6 CF57822U
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