new mpg record
08-08-2008, 10:22 AM
#27
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Did you verify this using the gas pump and mileage method?
I can tell you that changing your injector calibration requires you to be VERY accurate otherwise mpg readouts are not accurate. Tune can be spot on, but meter is not right. Because you are running at very very low pulse widths of your injector, a slight issue with the tables at low PW makes huge changes to that meter.
How did you calibrate your injector PW table? just a mulitplication of the stock table? Was a flow bench involved?
I can tell you that changing your injector calibration requires you to be VERY accurate otherwise mpg readouts are not accurate. Tune can be spot on, but meter is not right. Because you are running at very very low pulse widths of your injector, a slight issue with the tables at low PW makes huge changes to that meter.
How did you calibrate your injector PW table? just a mulitplication of the stock table? Was a flow bench involved?
.... I'd be happy to see 40.... I think 35-38 is my best
08-08-2008, 11:46 AM
#29
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Did you verify this using the gas pump and mileage method?
I can tell you that changing your injector calibration requires you to be VERY accurate otherwise mpg readouts are not accurate. Tune can be spot on, but meter is not right. Because you are running at very very low pulse widths of your injector, a slight issue with the tables at low PW makes huge changes to that meter.
How did you calibrate your injector PW table? just a mulitplication of the stock table? Was a flow bench involved?
I can tell you that changing your injector calibration requires you to be VERY accurate otherwise mpg readouts are not accurate. Tune can be spot on, but meter is not right. Because you are running at very very low pulse widths of your injector, a slight issue with the tables at low PW makes huge changes to that meter.
How did you calibrate your injector PW table? just a mulitplication of the stock table? Was a flow bench involved?
DIC read an average of 43, calculations showed 42
08-08-2008, 11:49 AM
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09-01-2008, 01:46 AM
#31
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I have a '08 XFE 5 spd with 5500 miles on it and has no aftermarket upgrades yet. The very best that I have gotten on the DIC is 36.2 @ 65 mph. That is 2 trips (140 mile round trips) to work and back that is all highway. The pencil came out to 35.4 mpg on the same tank. Take it up the 70 and it gets 33 to 35 tops. What are you guys doing to get that mileage, because I am not seeing it? Thanks - 08cobalt
09-01-2008, 01:50 AM
#32
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I have a '08 XFE 5 spd with 5500 miles on it and has no aftermarket upgrades yet. The very best that I have gotten on the DIC is 36.2 @ 65 mph. That is 2 trips (140 mile round trips) to work and back that is all highway. The pencil came out to 35.4 mpg on the same tank. Take it up the 70 and it gets 33 to 35 tops. What are you guys doing to get that mileage, because I am not seeing it? Thanks - 08cobalt
look for a hypermilling forum, crazy stuff
09-08-2008, 08:02 PM
#34
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With my XFE I was able to hold 42.3 MPG over 375 miles during a portion of my drive from Detroit to Boulder CO
The rest of the drive was spent at 75+ mph...and I averaged about 35-38mpg, which ain't all that bad either!
The rest of the drive was spent at 75+ mph...and I averaged about 35-38mpg, which ain't all that bad either!
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