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#1
07-03-2004, 04:05 PM
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Air-intake Mod. Question
First off, I want to wish all a happy and safe 4th of July.
Does modifying the air intake have any effect on MPG? Since I modified the air box I noticed a reduction in my MPG. I used to get 18 mpg around town know I'm only getting around 16 mpg or less, is there any correlation. 
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#2
07-03-2004, 05:27 PM
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Re: Air-intake Mod. Question
I have heard this as well, personally in my car I have seen an increase in mileage with my K&N/airbox gut, possibly because I have a cat back exhaust as well. Ideally proper mods (stage 1, 2 and 3) should increase mileage.
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1997 Aurora "Aurora Snow" 250++HP 4.0L Modified Aurora V8 w/Autobahn Performance On Deck: RSM intake, RSM 80mm TB  Administrator, www.oldsmobileforums.com Administrator,Aurora Club of North America Administrator, www.bonnevilleclub.com Adminstrator, www.ontariobonnevilleclub.com Coming Soon
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#3
07-04-2004, 10:50 AM
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Re: Air-intake Mod. Question
Quote:
I feel better knowing that I'm not imagining the lower mileage. Now I know I'm not the only unlucky SOB.  
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1997 Burgandy Aurora
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#4
07-04-2004, 02:41 PM
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Re: Air-intake Mod. Question
I noticed the same 2mpg drop. The resultant sound and performance is worth it, though :-)
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#5
07-04-2004, 05:33 PM
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Re: Air-intake Mod. Question
Its pretty simple to see:
GM Engineer 1: Ok, here we have a V8, its not very fuel effiecient, what do we do? GM Engineer 2: Ooooh! Pick me! lets fill the airbox with ugly yellow innards so that less air gets in and the resulting lower volume of air will ensure better fuel efficiency! GM execs: Brilliant..heres a raise! Aurora Driver: Here I have this wonderful V8, I want more out of it...what do I do? Aurora Driver 2: Take that yellow crap out of the air box, more air = faster... Aurora Driver 1: Wont that affect my mpg? Aurora Driver 2: Does it matter?! 
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1997 Aurora "Aurora Snow" 250++HP 4.0L Modified Aurora V8 w/Autobahn Performance On Deck: RSM intake, RSM 80mm TB Administrator, www.oldsmobileforums.com Administrator,Aurora Club of North America Administrator, www.bonnevilleclub.com Adminstrator, www.ontariobonnevilleclub.com Coming Soon
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#6
12-04-2005, 09:26 PM
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Re: Re: Air-intake Mod. Question
Quote:
That is exactlly right. Goodbye 2mpg hello better performance!
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