Cold Air Intake decreases mpg?
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From: Portsmouth UK, England
Re: Cold Air Intake decreases mpg? (sharkcohen)
ok, people go for CAI because colder air is more dense. The more dense the air is the more the oxygen concentration - the more oxygen available for combustion means you can burn more fuel. THEREFORE you get a bit more power/torque but mpg will be reduced.
C'mon guys - there are not many performance mods that will increase your mpg!?!
C'mon guys - there are not many performance mods that will increase your mpg!?!
Joined: Jun 2003
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From: irvine, ca, usa
Re: Cold Air Intake decreases mpg? (sharkcohen)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sharkcohen »</TD></TR><TR><TD CLASS="quote">No, it doesn't increase mileage.</TD></TR></TABLE>
also contributing to this is the fact that with intake and/or exhaust, your car is louder and sounds "cooler" so you are more prone to flooring it, which uses more gas...but if u drive around like a grandma for the most part it wont affect your mpg too much
also contributing to this is the fact that with intake and/or exhaust, your car is louder and sounds "cooler" so you are more prone to flooring it, which uses more gas...but if u drive around like a grandma for the most part it wont affect your mpg too much
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From: Morgantown, wv, usa
Re: Cold Air Intake decreases mpg? (Daemione)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">ok, people go for CAI because colder air is more dense. The more dense the air is the more the oxygen concentration - the more oxygen available for combustion means you can burn more fuel. THEREFORE you get a bit more power/torque but mpg will be reduced.
C'mon guys - there are not many performance mods that will increase your mpg!?!
</TD></TR></TABLE>
Actually in theory it will do nothing to your MPG not hurt it or help it for normal driving. At the same throttle position you will have more O2 going to the engine, thus your car will add more fuel, thus more power, thus car goes faster than it used to at that same throttle position. So, if your trying to cruse at a constant speed you will now have to close the throttle a little more than you did before the CAI was installed. This will restrict the air flow back to were it was before the mod to the intake. Same air and fuel going in, same MPG. The only real diff is if your driving around at WOT all the time, and If you doing that then you don't care about your MPG.
C'mon guys - there are not many performance mods that will increase your mpg!?!
</TD></TR></TABLE>
Actually in theory it will do nothing to your MPG not hurt it or help it for normal driving. At the same throttle position you will have more O2 going to the engine, thus your car will add more fuel, thus more power, thus car goes faster than it used to at that same throttle position. So, if your trying to cruse at a constant speed you will now have to close the throttle a little more than you did before the CAI was installed. This will restrict the air flow back to were it was before the mod to the intake. Same air and fuel going in, same MPG. The only real diff is if your driving around at WOT all the time, and If you doing that then you don't care about your MPG.
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From: so cal, USA
Re: Cold Air Intake decreases mpg? (Monkey Fing a Coconut)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Monkey Fing a Coconut »</TD></TR><TR><TD CLASS="quote">
also contributing to this is the fact that with intake and/or exhaust, your car is louder and sounds "cooler" so you are more prone to flooring it, which uses more gas...but if u drive around like a grandma for the most part it wont affect your mpg too much</TD></TR></TABLE>
samething happens if you have a snail. my grandmas garden has lots of snails too, but mine is hot because im miss p. hilton.<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 577HondaPrelude »</TD></TR><TR><TD CLASS="quote">
Actually in theory it will do nothing to your MPG not hurt it or help it for normal driving. At the same throttle position you will have more O2 going to the engine, thus your car will add more fuel, thus more power, thus car goes faster than it used to at that same throttle position. So, if your trying to cruse at a constant speed you will now have to close the throttle a little more than you did before the CAI was installed. This will restrict the air flow back to were it was before the mod to the intake. Same air and fuel going in, same MPG. The only real diff is if your driving around at WOT all the time, and If you doing that then you don't care about your MPG.
</TD></TR></TABLE>
only in theory, but for my last gas tank mpg, i averaged 23.88 with a snail, so iono, people with boltons can still manage really nice mpg numbers.
also contributing to this is the fact that with intake and/or exhaust, your car is louder and sounds "cooler" so you are more prone to flooring it, which uses more gas...but if u drive around like a grandma for the most part it wont affect your mpg too much</TD></TR></TABLE>
samething happens if you have a snail. my grandmas garden has lots of snails too, but mine is hot because im miss p. hilton.<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 577HondaPrelude »</TD></TR><TR><TD CLASS="quote">
Actually in theory it will do nothing to your MPG not hurt it or help it for normal driving. At the same throttle position you will have more O2 going to the engine, thus your car will add more fuel, thus more power, thus car goes faster than it used to at that same throttle position. So, if your trying to cruse at a constant speed you will now have to close the throttle a little more than you did before the CAI was installed. This will restrict the air flow back to were it was before the mod to the intake. Same air and fuel going in, same MPG. The only real diff is if your driving around at WOT all the time, and If you doing that then you don't care about your MPG.
</TD></TR></TABLE>
only in theory, but for my last gas tank mpg, i averaged 23.88 with a snail, so iono, people with boltons can still manage really nice mpg numbers.
Re: Cold Air Intake decreases mpg? (krnfly2damoon)
I would think that overall, you really wouldn't notice much increase/decrease.
It is freer flowing, but you lose bottomend tq. so you have to use more throttle when taking off. However, on the highway, I would imagine it helps.
It is freer flowing, but you lose bottomend tq. so you have to use more throttle when taking off. However, on the highway, I would imagine it helps.
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Re: Cold Air Intake decreases mpg? (AndyD)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AndyD »</TD></TR><TR><TD CLASS="quote">I would think that overall, you really wouldn't notice much increase/decrease.
It is freer flowing, but you lose bottomend tq. so you have to use more throttle when taking off. However, on the highway, I would imagine it helps.</TD></TR></TABLE>
Thisis the first time that I have heard that you lose bottomend power...Why is that? How much are we talking? Will I notice a differnece?
I get mine tomorrow and am going to put it in...I just had never heard of losing bottomend power after installing a cold air intake.
It is freer flowing, but you lose bottomend tq. so you have to use more throttle when taking off. However, on the highway, I would imagine it helps.</TD></TR></TABLE>
Thisis the first time that I have heard that you lose bottomend power...Why is that? How much are we talking? Will I notice a differnece?
I get mine tomorrow and am going to put it in...I just had never heard of losing bottomend power after installing a cold air intake.
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From: Further down the spiral, TX, usa
Re: Cold Air Intake decreases mpg? (krnfly2damoon)
Yeah, cold air means the car adds more fuel, but you get proportionately more power from each stroke. Giving less pressure on the gas pedal with your foot should pretty much get you moving (with colder air) at the same pace as if you were taking in warmer air with more pedal pressure....IMO.
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From: Mount Holly, NJ, USA
Re: Cold Air Intake decreases mpg? (577HondaPrelude)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 577HondaPrelude »</TD></TR><TR><TD CLASS="quote">Actually in theory it will do nothing to your MPG not hurt it or help it for normal driving. At the same throttle position you will have more O2 going to the engine, thus your car will add more fuel, thus more power, thus car goes faster than it used to at that same throttle position. So, if your trying to cruse at a constant speed you will now have to close the throttle a little more than you did before the CAI was installed. This will restrict the air flow back to were it was before the mod to the intake. Same air and fuel going in, same MPG. The only real diff is if your driving around at WOT all the time, and If you doing that then you don't care about your MPG. </TD></TR></TABLE>
If you wanna get technical, your idea about closing the throttle would make the engine's efficiency go down.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">In addition, engine speed is lower in fifth, so to generate the same amount of power, you have a larger throttle opening (and hence lower throttle losses) - this is another reason to get to higher gears as quickly as possible.</TD></TR></TABLE>
Taken from insightcentral.net, the idea is to make the same amount of power but have the throttle as far open as possible for the best mpg.
People like me can stick a hot air intake on our cars and get better gas mileage because we are getting less o2 and also having the throttle open more.
</TD></TR></TABLE>If you wanna get technical, your idea about closing the throttle would make the engine's efficiency go down.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">In addition, engine speed is lower in fifth, so to generate the same amount of power, you have a larger throttle opening (and hence lower throttle losses) - this is another reason to get to higher gears as quickly as possible.</TD></TR></TABLE>
Taken from insightcentral.net, the idea is to make the same amount of power but have the throttle as far open as possible for the best mpg.
People like me can stick a hot air intake on our cars and get better gas mileage because we are getting less o2 and also having the throttle open more.
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