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Old 10-31-2011, 02:53 PM   #3 (permalink)
slowmover
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Location: Fort Worth, Texas
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2004 CTD - '04 DODGE RAM 2500 SLT
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Have a look at fuel flow meters for marine engines ($$$, though, such as FLOSCAN). The trio of driver gauges would be:

Fuel Flow
Vacuum
RPM

Additional would be:

Airspeed


Depending on the car there are (or were) spark timing adjustment boxes (MSD, and others) where one can advance or retard ignition timing. With the above gauges (and maybe a knock sensor) can can "lean out" the engine for best cruise parameters.

Some of the "feedback carbs" worked in a similar manner.

What kind of car is it?

EDIT: I see you are aware of marine fuel flow meters.

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