350 Magnum EFI (TBI) Performance Improvements
Yes, you found the website too. I'm looking for good price performance
mods, not a marketing term.
Anyway, I found out some interesting stuff about MPFI from edlebrock I
should share.
Well, the local FI expert at edlebrock seems to think that since marine
manifolds have dry areas, it's completely feasible (and has been done to
extrodinary success) to place aftermarket MPFI systems on marine engines in
a closed loop configuration - you simply sleeve the waterjacket with a
larger hole down to the manifold itself and drill/tap a smaller hole for the
sensor. An absolutely brilliant solution - Having a sensor looking at only
one side of the motor is a compromise, but only a liability if it's out of
tune in the first place, in which case the sensor's not gonna work or last
in anycase.
Now I got a lot of flak a couple months ago about using O2 sensors in marine
applications ( a statement was made that O2 sensors are only valuable for
emissions and catalyst health - which I personally do not agree with but am
not in a position to argue)
Comments on closed loop aftermarket MPFI marine applications???
"Tom Ruta" wrote in message
...
On Tue, 27 Jan 2004 18:30:58 -0800, "no one"
wrote:
I called summit, they didn't stock anything called vortec...
Vortec is a word GM used to describe a swirling of the intake gasses in
the
cylinder and combustion chamber - what specifically are you talking
about?
The name "Vortec" originated in the 1986 4.3L V-6 engine that used
"vortex technology" to create a vortex inside the combustion chamber.
GM Powertrain engineers incorporated this phenomenon into their
engines to achieve a better air-to-fuel mixture in the combustion
process. The result is what has now developed into Vortec engines --
engines that are designed to deliver plenty of horsepower without
sacrificing fuel efficiency. While the technology has evolved over
time, the design philosophy remains the same. Vortec engines deliver
both power and efficiency, all in a low-maintenance, durable package.
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