Quote:
Originally Posted by jakobnev
How/when is the vacuum gauge used really?
I'm thinking on highway cruise for example, without a gauge you'd give it enough gas to not lose speed, what would you do differently if you had a gauge to look at?
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jakobnev, at highway speeds one can't always tell the road has started to climb, and one's foot is applying more gas, but the gauge will automatically remind you. In much the same way a cruise-control can't foresee the top of a hill, but the driver can let-off before reaching the top to save gas. It became a habit to watch the light (gauge) in our Pinto and MPG did improve. Understand, I am looking at ways to improve MPG in older cars with more modern engines but not necessarily Fuel Injection. My Sunbeam has a 1985 Ford 2.3 with overdrive automatic. The Autolite 2100 carb invented annular atomization which did the best job breaking up fuel droplets into vapor, which increased MPG, HP, and Torque...and with just 5 lbs. fuel pressure.