which intake type for best MPGs

wagodizzlewagodizzle Council Member and EDM expert
i have been messing around with a few intake parts before but havent really been able to make a clear analysis of what the better intake type is for best MPGs as my car was always getting modified with like headers, wider wheels, lowering etc..

basically i would like to know which intake type is the best, for example:

-complete stock box
-stock flat filter with no box
-performance flat filter
-cone filter
-mushroom filter

the best MPGs i got were with the cone filter but that was before ANY modifications at all... ebay and such claim that there CAI cone filter systems get you better gas mileage from more free flowing air, but i also heard that freer flowing air reduces MPGs.. so what is true?

Comments

  • quartersquarters Council Member
    i've heard that the stock box with a good filter and removing that tube that goes out over the rad is the best. but i don't really know.
  • HaydzHaydz Moderator
    I'd say the full stock setup, maybe without the resonator.

    A good compromise would be a 2.5" intake tube, 2.5" inlet pod filter and a cold air box with cold air ducting. Too many people go for the 3" intakes and you tend to lose alot of throttle response and economy because of it.
  • SiWagonSiWagon Council Member
    Complete airbox with the following mod.Take a page from the CRX HF.Use the CAI that goes from the airbox to the TB.I It's so small in dia. that I don't think a golf ball would roll in it.Changes in ur drivin style would yield much better MPG.
  • jpciiijpciii familEE
    Your intake choice isn't going to affect MPG very much. The only improvement I've ever experienced from an aftermarket CAI is *slightly* better high revving power. The only problem is it came at the expense of low revving drivability. I would get the occasional idle hiccups, sputters, idle jumps, and other weird occurrences with a cone filter and CAI. They where pretty minor problems, but they happened on a couple of different mildly modified Hondas. CAIs are louder and make the engine sound more "sporty". They also look kinda bling. If you want the best all around performance, however, stick with your stock setup and maybe get a K&N filter... which is what I ultimately decided works best for me.

    Like what was already said, your driving style will BY FAR have the biggest influence over your MPG.
  • wagodizzlewagodizzle Council Member and EDM expert
    no way am i putting an HF "drinking straw" intake on my car, haha... i get 37 mpg average right now with headers, 2.25 catback and stock intake. im pretty happy with that. im still trying to maintain some "performance"..anyways...

    i've never had any idle issues or blurps with a CAI... anywho.
  • wagodizzle wrote:
    i have been messing around with a few intake parts before but havent really been able to make a clear analysis of what the better intake type is for best MPGs as my car was always getting modified with like headers, wider wheels, lowering etc..

    basically i would like to know which intake type is the best, for example:

    -complete stock box
    -stock flat filter with no box
    -performance flat filter
    -cone filter
    -mushroom filter

    the best MPGs i got were with the cone filter but that was before ANY modifications at all... ebay and such claim that there CAI cone filter systems get you better gas mileage from more free flowing air, but i also heard that freer flowing air reduces MPGs.. so what is true?
    I am a strong supporter of K&N filters (cone or OE replacement) as long as it is used in NON MAF sustem. MAF equipped systems will get contaminated overtime, especially after improper servicing of such filter.
    I had in in all my vehicles. I even have it in My SV1K along with some other mods...
    As for MPG, I haven't noticed any increase/decrease from stock air box.
    What I have is a stocck snout that connects to intake and an elbow form an E350 7.3DTI intercooler pipe with a K&N cone filter at the end (behind battery).
    It sounds like a WRX at full throttle.
    I've been getting stron 28-29 MPG with my 4WD waggy.
    I am planning to cut a hole underneath the filter and fit it inside the fender away from heat of engine compatment. I have 2 or 3 spare elbos from E350 7.3 DTI
    MPG is affected by two factors your right foot and where you live(terrain).
    Hilly areas, urban invironment will yield lower MPG, open roads, country side will do opposite!
    As for CAI it has to be combined with adequate exhaust system to perform as designed. Never forget removing exhaust back pressure lower TQ output...and low to mid range performance...
    Breathing(intake air) and exhaling(expeling gases) is everything even for a car :wink:
    I think it is not worth to alter stock system unless perfomance mods are in order.
    I did it because I had CAI set-up from a previous car ... :roll:



    Cheres!
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