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Gas mileage and TB

Old Dec 26, 2007 | 05:52 PM
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Default Gas mileage and TB

Has anyone else seen a decrease in gas mileage after installing a larger TB?
 
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Old Dec 26, 2007 | 06:13 PM
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Default RE: Gas mileage and TB

Its funny after I installed it my gas mileage went from 15mpg to 14mpg. But about 2 weeks later it went back up to 15mpg. I do all stop and go driving so depending on traffic I guess I could see better mileage on light traffic days. With the switch to the winter blend gas I get 12 mpg. I am very happy with the TB though. This morning I stomped on it to pass a slower car and Man I thought I had nitrous. With the temerature in the low 30's the truck accelerates like a rocket.
 
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Old Dec 26, 2007 | 06:24 PM
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Default RE: Gas mileage and TB

And if you do the power wire mod, it'll drive like that all the time.
 
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Old Dec 26, 2007 | 07:22 PM
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Default RE: Gas mileage and TB

Yea and watch the gas gauge go down to empty real fast too.
 
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Old Dec 26, 2007 | 08:54 PM
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Default RE: Gas mileage and TB

What is the power wire mod?
 
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Old Dec 26, 2007 | 08:58 PM
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Default RE: Gas mileage and TB

i accually checked my mileage on the highway this afternoon on the way to work. 23.3 mpg at 65 with the cruise on. once i started to climb a hill it went back down some. and once i leved off right back up tp 23 mpg. cant complain. on the average i get between 380 and 420 to a tank of gas.
 
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Old Dec 27, 2007 | 09:25 AM
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Default RE: Gas mileage and TB

ORIGINAL: superdak05

i accually checked my mileage on the highway this afternoon on the way to work. 23.3 mpg at 65 with the cruise on. once i started to climb a hill it went back down some. and once i leved off right back up tp 23 mpg. cant complain. on the average i get between 380 and 420 to a tank of gas.
Holy crap, man. You have a 4.7, right? Around town I'm getting 200-225 miles, and on the highway I think I'm doing good to get 270-280 out of a tank. On the rare occasion that I check I'm around 13-14MPG in town and 16-17 on the highway. I would think the stick should make it better than an auto, but it doesn't seem to from what I've heard and read.

Granted, mine is a 4X4 and a bit heavier being a QC, but how the hell are you getting virtually twice the miles out of a tank than what I am?
 
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Old Dec 27, 2007 | 10:59 AM
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Default RE: Gas mileage and TB

ORIGINAL: Racinartist

Holy crap, man. You have a 4.7, right? Around town I'm getting 200-225 miles, and on the highway I think I'm doing good to get 270-280 out of a tank. On the rare occasion that I check I'm around 13-14MPG in town and 16-17 on the highway. I would think the stick should make it better than an auto, but it doesn't seem to from what I've heard and read.

Granted, mine is a 4X4 and a bit heavier being a QC, but how the hell are you getting virtually twice the miles out of a tank than what I am?
You answered your own question...you have the 4X4 QC...your mileage is not too dissimilar from what I am getting.

When Drove down from Chicago to Tampa I got about 18.5 (kept it at 75). Lately in and around town (not too many lights) I have been getting about 16 or so but when I was in Chicago (a lot more stop lights) I was getting about 14...
 
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Old Dec 27, 2007 | 12:29 PM
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Default RE: Gas mileage and TB

I was trying to find out if the guys with the bigger TB saw a decrease, increase, or no change in MPG after the install. Or if there is some kind of maintenance I need to do other than resetting the computer.
 
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Old Dec 28, 2007 | 08:57 AM
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Default RE: Gas mileage and TB

MPG should neither go up or down with throttle body change
...but normal driving has MPG jumping around anyway
 
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