I just got my 06 si a week ago and im loving it . I just ordered a short shifter for it and now think about what kind of intake i should get. My question is if i ordered a cold air intake would i get better gas mileage ?

 

no

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by goku335 &raquo;</TD></TR><TR><TD CLASS="quote">I just got my 06 si a week ago and im loving it . </TD></TR></TABLE>

I think people are beginning to use this symbol way to much out of context.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FA5civicSI &raquo;</TD></TR><TR><TD CLASS="quote">no</TD></TR></TABLE>

agreed

 

You see it in alot of magazine ads saying "Buy this intake, and get better MPG", most of the time, its nothing more than a marketing scam.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FA5civicSI &raquo;</TD></TR><TR><TD CLASS="quote">no</TD></TR></TABLE>

 

Buy an ubertastic mpg chip for your SI off ebay. 300+ MPG after you put it on.

(I used it in context )

 

really all it does is make it sound better. especially in higher rpms jk haha

 

It burns more gas, but so little that it's not noticable

 

you will spend more money on gas when you install an intake coz u will always wanna hear the vtec kicks in when you have an intake.. hahaha

 

Theoretically, it burns the gas more "solidly", resulting in the engine working less, which, in-turn, results in less gas being consumed.

Or at least that's what they want you to believe.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FA5civicSI &raquo;</TD></TR><TR><TD CLASS="quote">no</TD></TR></TABLE>

You are wrong, it will improve fuel economy.

OP what you need to do is drive on the freeway at a time where traffic will be very light. Fill up before you do so reset your trip, drive about 150 miles, fill up and divide the miles by the number of gallons you filled up. Then repeat this process with the intake.

If you have an Si I recommend the the newly revised AEM cold air intake. It has vanes for the MAF housing and a radiator hose that will clear the intake.

For all those who say it won't improve fuel economy you better tell AEM and K&N to stop advertising fuel economy improvements.

http://aempower.com/ViewTopic.aspx?TopicID=9

http://www.knfilters.com/ads/linegas.aspx


Modified by Kidnkorner at 12:43 PM 10/15/2008

 

didnt you post earlier that you want a turbo, if you do then you dont need an intake unless you go supercharged j/k

 

not an intake but when put on my ws2, i got more power in 5th gear for cruising and better gas mileage. 1-2mpg more.

 

ok install it and tell us your results. the engine will run better , not more fuel efficient

 

I had an Injen cai on my 99 Si back in the day and on long trips with cruise control on I saw 20-30 miles more per tank. In town I engaged vtec more than before intake but it stayed pretty much the same.

 

if you drive it easy it will slightly increase your fuel mileage overall. 20-30miles more a tank is definately not a surprise. the engine breathes easier, more efficient combustion. it make your engine run more consistant.

 

I thought this was true with all vehicles but I'm not sure about the new si's for sure. A cold air intake utilizes cooler air that is more dense. If the air is more dense then it has more oxygen present. Naturally, if there is more oxygen present then the engine will counter with more fuel and more fuel usually means more power. So if there is more fuel being used to compensate for the added oxygen that should techinically mean a slight loss of gas mileage. But at the same time, the intake is designed to breathe better which may help gas mileage because the engine isn't working as hard. If anything, the difference is probably so minimal either way.

 

I installed my Fujita SRI in august. That month I drove from CT to NC to visit a friend, and I tested my fuel efficiency as follows. On the way down I filled up at a rest area once I was passed major metropolitan areas to minimize traffic, reset the trip odometer, drove until I was almost empty with only one or two stops for a ****/snack break. I drove with NO A/C, in cruise whenever possible, minimal acceleration, and kept it between 65-70mph to minimize air resistance. Once I was near empty I divided the total miles driven by the amount of gas added. I forget what the exact figures were but my gas mileage was around 34.86mpg I think.

While I was in NC I installed my intake and drove for a few days so the computer could 'relearn' my driving habits and operate as before. On the way back I drove as much as I could under the same circumstances and conditions and averaged 39.13mpg. So for those who say an intake does not improve you're fuel economy, you are wrong. As for city driving I did not notice any improvement, possibly due to driving more aggressively combined with a loss of torque below 3k rpm which caused me to step more on the accelerator to get the same rate of acceleration.

Cliffs: My SRI gave me roughly 4.3mpg MORE on the highway

PS - the following weekend I might be taking my car to VT, I will try to duplicate these conditions now that I've also added a Vibrant cat back and I'll report back with the results.

Peter

 

I got an intake on my car 2 weeks ago and haven't noticed any difference with gas..

 

You haven't noticed a difference because you are eyeballing your fuel gauge and mileage, pretty hard to gain accurate tally that way.

The way to test if a particular part increased fuel economy is similar to the way you would measure power gained on a dyno, by immediately performing before and after results.

Simply fill your tank up, map out a route and drive about 150 miles on the freeway using cruise control on a particular day and time where there is little to no traffic. Then fill your tank up and record the MPG, install said part(s) and perform the same test on the same route in the same manner. That is the most accurate way to test if parts increased fuel economy. The only better way would be on a closed circuit track.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Shimakid12 &raquo;</TD></TR><TR><TD CLASS="quote">I thought this was true with all vehicles but I'm not sure about the new si's for sure. A cold air intake utilizes cooler air that is more dense. If the air is more dense then it has more oxygen present. Naturally, if there is more oxygen present then the engine will counter with more fuel and more fuel usually means more power. So if there is more fuel being used to compensate for the added oxygen that should techinically mean a slight loss of gas mileage. But at the same time, the intake is designed to breathe better which may help gas mileage because the engine isn't working as hard. If anything, the difference is probably so minimal either way. </TD></TR></TABLE>

Fuel is just but one equation, did you think about cam phasing or spark timing? A car can adjust timing to make more power without having to add fuel.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jim0626 &raquo;</TD></TR><TR><TD CLASS="quote">You see it in alot of magazine ads saying "Buy this intake, and get better MPG", most of the time, its nothing more than a marketing scam. </TD></TR></TABLE>

Perpetuated by AEM and K&N too?


Modified by Kidnkorner at 12:25 AM 10/30/2008


Modified by Kidnkorner at 12:37 AM 10/30/2008

 

I drive the same route every day. It still is about the same.

 

but it takes out all the fun and purpose of having a cai to just drive slow and try to imporve fuel mileage once you got that cai in you wanna floor it and hear the sound and feel the difference for that satisfying moment and then do it over and over

of course you can improve fuel milage over a steady persistant time, drive like a granny on the freeway when it is clear and keep your ride at a steady speed (the speed thats recomended for the most mpg) and dont let veriables get in the way like breaking or whatever, at this rate, whats the purpose to spend that extra money for the si when it gets lower mileage than the regular civic?

 

All you guys that are saying that a CAI doesn't improve fuel economy think about this; The Si, EX, LX, DX already have cold air intakes stock and they draw air from OUTSIDE the engine bay, so your argument about intake air temps just went right out the window.

Aluminum's heat conducting properties are far worse than the factory plastic and rubber used in the stock set up.

All the after market companies producing intakes are improving volumetric efficiency by making the intake less restrictive and increasing intake velocity.

We all know improving volumetric efficiency power and when reasonable driving is applied fuel economy is also increased.

Since there is generally more power throughout the power band part throttle cruising requires less TPS angle also improving fuel economy.

If replacing a dirty air filter restores your baseline fuel economy then replacing the car's air filter with a less restrictive unit or swapping out to a CAI will increase your baseline fuel economy.


Modified by Kidnkorner at 12:39 AM 10/30/2008


Modified by Kidnkorner at 12:41 AM 10/30/2008

 

haha get that tornado thing that they advertise on tv and in stores
it promises better mpg and cost an arm and a leg