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SportTrac Discussion
Engine & Drivetrain
Raising Gas Mileage on a 2003
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<blockquote data-quote="Dean Hedin" data-source="post: 1009472" data-attributes="member: 57230"><p>Rich, your concerns are duly noted, but unwarranted. Let's say my setup is "off" with respect to VSS. Let's say I really am getting 23mpg when if fact the unit reports 25mpg. Fine.</p><p></p><p></p><p></p><p>What I'm going to attempt to do here is gather some highway and commute mpg data, to establish a baseline, and then perform some mods to see if there is an improvement. </p><p></p><p> </p><p></p><p>So, you have now found yourself in the position of having to argue that the unit is not repeatable in it's method of measurement. I happily await your response in this regard for it is based on a well accepted formula and the consistency of the speed and mass air flow sensors.</p><p></p><p></p><p></p><p>The fact of the matter is that my tires are well within 1% of the diameter of the stock tires. I also highly doubt the vehicle speed sensor is off by 5%. </p><p></p><p></p><p></p><p>I'm sorry you have no confidence in the readings with Proscan. I know that 25.5 sounds high but I think it is a real number. In early October I drove up to Lake Wanpaupak on a 252 mile round trip. Unfortunately I did not have Proscan running on this trip. But I do know that the fuel gauge still read over half a tank left over when I got back home.</p></blockquote><p></p>
[QUOTE="Dean Hedin, post: 1009472, member: 57230"] Rich, your concerns are duly noted, but unwarranted. Let's say my setup is "off" with respect to VSS. Let's say I really am getting 23mpg when if fact the unit reports 25mpg. Fine. What I'm going to attempt to do here is gather some highway and commute mpg data, to establish a baseline, and then perform some mods to see if there is an improvement. So, you have now found yourself in the position of having to argue that the unit is not repeatable in it's method of measurement. I happily await your response in this regard for it is based on a well accepted formula and the consistency of the speed and mass air flow sensors. The fact of the matter is that my tires are well within 1% of the diameter of the stock tires. I also highly doubt the vehicle speed sensor is off by 5%. I'm sorry you have no confidence in the readings with Proscan. I know that 25.5 sounds high but I think it is a real number. In early October I drove up to Lake Wanpaupak on a 252 mile round trip. Unfortunately I did not have Proscan running on this trip. But I do know that the fuel gauge still read over half a tank left over when I got back home. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Raising Gas Mileage on a 2003
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