07-22-2012, 12:17 AM | #1 |
Drives: 2011 Inferno Orange 2SS/RS Join Date: Jan 2012
Location: Florida
Posts: 357
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CAI - Gas Mileage Adjustment?
Just installed a CAI last night and I'm just wondering what to expect as far as gas mileage. Is it going to take time for the car's avg mpg to adjust itself or would the current indicators be correct? I didn't really expect an increase but I certainly didn't expect it to hurt after reading claims from vendors that you usually see a 1-3mpg gain.
I drive this same 15 mile stretch of highway road often (55-65mph speeds) and I like to watch my gas mileage on the stretch as a way to benchmark how driving habits affect gas mileage. I normally average about 27mpg (+/- 1mpg) but with the new Cold Air Induction CAI installed I was down to 24mpg coming and going tonight according to the car so I'm a little concerned right now. I certainly don't want to lose 40+ miles per tank of gas. I don't need to do a fuse pull or anything like that do it? |
07-22-2012, 12:26 AM | #2 |
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The car should adjust itself for the CAI. However, I did the fuse pull after I did mine just to be safe. As far as your MPG goes, mine went up 1 MPG and I think thats normal for this car. You should reset your MPG and your trips and see what happens. By the way if you are getting 27MPG in an SS, you drive like a scared child.......
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2014 1SS 1LE, bone stock for now.
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07-22-2012, 12:27 AM | #3 |
Master Chief
Drives: 2011 Camaro SS RS L99 Join Date: May 2012
Location: Shippensburg, PA
Posts: 414
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i just installed mine tonight and i saw a drop as well, but a few things i figure are messing with it atm:
1. car hasn't learned the new setup yet and this is throwing it for a loop 2. 90% of my driving was in the city today which only added to the problem 3. my inability to keep my foot out of it (loving the growl) when i came home tonight i did the fuse pull (been wanting to do this anyway) and i figure,from what i've read here it'll be all good tomorrow. i would pull it just to be sure if i were you.
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07-22-2012, 12:30 AM | #4 |
Drives: 2011 Inferno Orange 2SS/RS Join Date: Jan 2012
Location: Florida
Posts: 357
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Only on this one section of road and usually back and forth to church It's just a good stretch where I can reset the indicator and see what I can squeeze out of her from time to time.
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07-22-2012, 03:17 AM | #5 |
Drives: 2011 Camaro 2ss Convertible Join Date: May 2012
Location: Los Angeles
Posts: 175
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My baby is a gas-alcoholic, 12.8 mpg atm and I´m not an agressive driver at all.
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07-22-2012, 04:01 AM | #6 |
Helping Build America
Drives: 2010 2SS/RS,LS3 2013 Duramax 3500HD Join Date: Aug 2008
Location: Freeport LPG Export
Posts: 3,839
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I get 22 mpg on the freeway doing 75-80. That's with cam, cai, headers and dynotune.
I drive 19 miles each way to work and average 14 mpg. 12 miles of that is freeway, it's the other 3-4 miles at either end of the commute where I have fun and it kills the mileage. Thes cars are just too much fun. Especially with extra HP added.
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Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting "Holy shit, what a ride!"
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07-22-2012, 04:04 AM | #7 |
Black Madness
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Im not very educated on this....Whats a fuse pull? and how will it help? Oh and how do i do it?Thanks
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07-22-2012, 05:03 AM | #8 | |
Helping Build America
Drives: 2010 2SS/RS,LS3 2013 Duramax 3500HD Join Date: Aug 2008
Location: Freeport LPG Export
Posts: 3,839
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Quote:
For people with SS Automatic transmissions. There are plenty of threads on here about it. Just search fuse pull. Essentially pull two particular fuses for a period of time will reset the computer. Paticularly if they had low octane gas. The computer would make the adjusment for the lower octane but not when they put high octane back in the tank so the fuse pull would take care of it. I don't even know if that is an issue on the later models still but unless you have an under achieving V8 with automatic tranny it doesn't apply.
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Life's journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting "Holy shit, what a ride!"
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07-22-2012, 07:24 AM | #9 |
Perpetual Order
Drives: indeed Join Date: Jun 2012
Location: Texas Hill Country
Posts: 1,277
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your mileage will go down. your car has a maf and o2 sensors which add fuel to maintain the right mixture for the increased air flow. I know people said they get a 1mpg increase but those are not empirical tests.
these are not carburators where adding intakes and exhaust leans the car out and nothing to add fuel unless you rejet the carb..... with all the pressure from EPA on the manuf, they would have a larger intake if it helped mileage. what's good for mileage? HOT intake air and small intake opening. power? cold air and more of it. |
07-22-2012, 08:38 AM | #10 | |
Drives: 2011 Inferno Orange 2SS/RS Join Date: Jan 2012
Location: Florida
Posts: 357
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Quote:
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07-22-2012, 10:05 AM | #11 |
Drives: Camaro 2SS/RS M6 Black and IOM Join Date: Sep 2011
Location: Deep South Texas
Posts: 109
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I got a 1 MPG drop when I added my CAI I went from 16 to about 15.3
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07-22-2012, 10:21 AM | #12 | |
Perpetual Order
Drives: indeed Join Date: Jun 2012
Location: Texas Hill Country
Posts: 1,277
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Quote:
I can't believe how easily everyone believes claims. I guess that's what happens when the general population doesn't want to learn how things work on their own and educate themselves. |
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07-22-2012, 10:28 AM | #13 |
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Mine stayed right around the same, Iv been averaging 18mpg to and from work. I think it dropped like maybe .5-1mpg and im pretty sure thats just due to my lead foot. Same thing happened when I put my exhaust on for a couple weeks.
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07-22-2012, 10:50 AM | #14 |
Perpetual Order
Drives: indeed Join Date: Jun 2012
Location: Texas Hill Country
Posts: 1,277
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the computer wants to maintain a stoichiometric air fuel ratio in closed loop, which is everything but full throttle, which is open loop. the sensors measure airflow and unburned oxygen and adjusts the amount of fuel accordingly to keep it stoich.
if you have more air for a given throttle position, you will get more fuel. that's life baby. |
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