Prelude fresh air intakes do they work?

Discussion in 'Prelude' started by KiwiinOz, Oct 16, 2004.

  1. KiwiinOz

    KiwiinOz Guest

    I'm thinking of buying one of those freah air intakes for my 1991 Prelude
    and wonder if anyone has knowledge about if they work at all?
    KiwiinOz, Oct 16, 2004
  2. KiwiinOz

    Jim Yanik Guest

    I got a noticable increase in power with my Integra CAI.
    Honda Tuning Magazine did testing of short rams,CAIs last year,both flow
    bench and dyno on an RSX-S and the CAIs gave a 20 hp increase.

    the intake NOISE level increaes dramatically,too.
    Jim Yanik, Oct 16, 2004
  3. KiwiinOz

    Cosmin N. Guest

    The RSX did gain almost 20hp, however it is a special case, because the
    stock intake was extremely restrictive. I haven't read the actual
    article, but I think it was the base model, not the RXS-s. My 5th gen
    Prelude would not benefit much from a CAI, since it doesn't increase the
    power by more than 5hp.

    The point is untill you dyno your car you won't know for certain how
    much hp you gained from a CAI. In some cases the increased noise might
    make the car feel faster, when in reality it may be almost the same.

    Cosmin N., Oct 16, 2004
  4. KiwiinOz

    KiwiinOz Guest

    I'm mainly looking for more miles per gallon than outright power.
    Any noticable improvements found out there?
    KiwiinOz, Oct 17, 2004
  5. KiwiinOz

    Cosmin N. Guest

    If you install a cai, your car will be less fuel efficient.

    Cosmin N., Oct 17, 2004
  6. Oh please, do explain.
    Steve Bigelow, Oct 17, 2004
  7. KiwiinOz

    Jim Yanik Guest

    I believe you are right about the stock RSX.
    What makes you think the Prelude's stock intake is not as restrictive as
    the Integra's?

    It might be even more restrictive;larger displacement of the 2.0 L Prelude
    compared to the 1.8L of the GSR.

    In referring to my noticeable increase in power,I refer to the seat-of-the-
    pants feel of accelleration,not noise.
    Jim Yanik, Oct 17, 2004
  8. KiwiinOz

    Jim Yanik Guest

    Then pay attention to tire inflation and driving style.
    Feather-foot it.Narrower,harder tires get better mileage.

    The intended use of CAIs are for more power,not fuel economy.
    Jim Yanik, Oct 17, 2004
  9. KiwiinOz

    Eightupman Guest

    he has to mean the psycological experience of getting less gas mileage. You
    know, the one where you bolt on HP and then you feel you have to drag race
    from light to light. The constant mashing of the accelerator will surely
    cause poor gas mileage!!!
    Eightupman, Oct 17, 2004
  10. KiwiinOz

    test Guest

    Yes they definitely work, my boyfriend used to work in a performance shop.
    The best is using a cold air intake, preferably by AEM. If not then just a
    short ram intake will be good. Adds horsepower.
    test, Oct 18, 2004
  11. KiwiinOz

    JEHU Guest

    I put a short ram intake on my 2000 Civic SiR and didn't really notice much
    other then major increase in noise... but i must say that I really like the
    new sound, exspecially when VTEC kicks in. It scares the hell out of
    JEHU, Oct 18, 2004
  12. KiwiinOz

    Jim Yanik Guest

    When Honda Tuning Magazine did flow bench and dyno tests on an RSX and
    several short rams and 2 cold air intakes,they found the short rams to have
    ~5-7 hp increases,negligible torque increases,but both CAIs had 20 hp
    increases,and slight torque increases.
    Incoming air temp has a large effect on power.
    Jim Yanik, Oct 19, 2004
  13. KiwiinOz

    JEHU Guest

    that just makes me want a CAI now :)

    JEHU, Oct 19, 2004
  14. KiwiinOz

    Jim Yanik Guest

    Jim Yanik, Oct 19, 2004
  15. KiwiinOz

    Cosmin N. Guest

    I just noticed your reply to my post. I said a CAI would make the car
    less fuel efficient because it allows more air into the engine. Since
    the mixture ratio should be constant, it makes sense that there should
    be more gas going into the engine as well. if only the air intake would
    increase but the gas would stay the same the car would run lean.

    If this reasoning is wrong, please correct me.

    Cosmin N., Oct 20, 2004
  16. KiwiinOz

    Jim Yanik Guest

    More air + more fuel= more power,thus less throttle needed.
    You may get more volumetric efficiency,too.

    This may be offset by the tendency to USE the extra power.(leadfoot effect)
    Jim Yanik, Oct 21, 2004
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.