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How do you switch from a Standard Transmission to to an Automatic.
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<blockquote data-quote="swampratt" data-source="post: 4300055" data-attributes="member: 15054"><p>Some people think cruising at lower RPM gets better MPG.</p><p>Not so all the time.. if the vehicle is not aerodynamic like a vette and is more like a sheet of plywood getting the RPM up while cruising will many times help MPG as you are not lugging it and you have less throttle opening if it is not being lugged.</p><p></p><p>My 1984 Ford van E150 got 2 MPG better with the 235-75-15 spare tire on the front bumper.</p><p>I kid you not.</p><p>Great bumper for hitting deer also.</p><p></p><p>Coolant temp plays a huge roll in MPH get it to 195 and MPG gets better than cruising around at 160 coolant temps.</p><p>I do not know if this is a Fuel injected deal or what but I like to lean out my carbs until they lean surge slightly on flat land cruising.</p><p></p><p>Then richen it up .001 at a time until it is gone then come up .001"-.002" in jet size and call it done.</p><p></p><p>Timing curves play a huge role in MPG..I like all my timing in by cruise rpm.</p><p> My 84 ford van weighed 6000 lbs and had 3.50 gear and I did not use Over drive.</p><p>Cruise was in the 2800 RPM area and .030 over 302 ford with ported everything and 2 barrel intake.</p><p></p><p>17.6 MPG this was Carbed and I recurved the distributor.</p><p>This was the MPG 95% of the time I filled it up.</p><p></p><p>I tried OD and it hurt MPG I tried more timing and it also Hurt the MPG.</p><p>It would either ping or lug and that is not the path to good MPG</p></blockquote><p></p>
[QUOTE="swampratt, post: 4300055, member: 15054"] Some people think cruising at lower RPM gets better MPG. Not so all the time.. if the vehicle is not aerodynamic like a vette and is more like a sheet of plywood getting the RPM up while cruising will many times help MPG as you are not lugging it and you have less throttle opening if it is not being lugged. My 1984 Ford van E150 got 2 MPG better with the 235-75-15 spare tire on the front bumper. I kid you not. Great bumper for hitting deer also. Coolant temp plays a huge roll in MPH get it to 195 and MPG gets better than cruising around at 160 coolant temps. I do not know if this is a Fuel injected deal or what but I like to lean out my carbs until they lean surge slightly on flat land cruising. Then richen it up .001 at a time until it is gone then come up .001"-.002" in jet size and call it done. Timing curves play a huge role in MPG..I like all my timing in by cruise rpm. My 84 ford van weighed 6000 lbs and had 3.50 gear and I did not use Over drive. Cruise was in the 2800 RPM area and .030 over 302 ford with ported everything and 2 barrel intake. 17.6 MPG this was Carbed and I recurved the distributor. This was the MPG 95% of the time I filled it up. I tried OD and it hurt MPG I tried more timing and it also Hurt the MPG. It would either ping or lug and that is not the path to good MPG [/QUOTE]
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