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Piping differences and issues for h22's and f22

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    #16
    Originally posted by deevergote
    Ok, to clear up a few things here:

    1) Honda catalytic converters don't rob much hp at all... if it's as much as .5hp, I'd be amazed. Honda has designed their converters to be very free flowing. Because of this, any stock replacement converter (quality, anyway) will be the same. Taking off your cat will do nothing but pollute the air and make you look like an idiot. h22sparkle, kudos for putting yours back on (though hi-flow when referring to Honda cats is pretty redundant. You can't get much more out of it.) Of course, running a stock Accord cat with an H22 and a 2.5" exhaust system would rob some power, simply because of the smaller diameter piping that it was designed for.

    .
    agreed! from what i have heard/read Deev is correct, honda cats flow just fine.

    why not use a prelude VTEC (oem replacement) cat?? id assume the length of the cat should be the same as the accord ones since the prelude exhaust manifolds and downpipe bolts up to the stock accord cat. id believe the only difference between the accord cat and prelude cat (93-95VTEC) is the actual diameter of the piping?.

    those were my thoughts since the sizing of the o-ring gaskets for the prelude/accord cats are quite different in size.

    anyone know for sure if you can bolt up a prelude VTEC replacement cat??
    F22a1-->F22A-->H22A-->auto-2-5spd-->K20 6spd-->F22C 6spd RWD-->4G63 6spd AWD-->K24 6spd????



    Sold to: blackice, Myothercar, Rennat, Ilikebigbutts, HA91, DA92CB7, accord91lx, Cb7GHOST, Gemini, whiteaccord92,Warudakumi, jhondayaaj
    Bought from: 93twodoorLX, Datmofo, g7kobayashi, accord_inspire, Accord SiR, Kurobei, UK-Accord, phreakish93, RENR, k-mart

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      #17
      The Prelude cat would probably be an easier way to go about it, actually. I had to have a new flange welded on to use the stock cat (I'm sure it was the header they modified...) A Prelude cat would probably bolt right up, and an aftermarket exhaust is pretty much necessary with the H22 swap anyway... Good thinking!

      Also, SMSP sells a very well designed aftermarket cat for a very fair price (compared to their crazy expensive headers, their cat is at a giveaway price!) www.smsproducts.com if I remember correctly. When I get a good header (RMF, SMSP, or something of equal quality... maybe Bisimoto if Bisi shows some more H love!) I plan on getting the SMSP cat for street use. I MAY get a straight pipe for the track at that point, since a high-end header and exhaust system WILL benefit somewhat from the deletion of the cat. For a street car with anything short of a $1000 header, no cat doesn't do anything worthwhile... nothing worth polluting the air even more for!






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        #18
        Originally posted by deevergote
        The Prelude cat would probably be an easier way to go about it, actually. I had to have a new flange welded on to use the stock cat (I'm sure it was the header they modified...) A Prelude cat would probably bolt right up, and an aftermarket exhaust is pretty much necessary with the H22 swap anyway... Good thinking!

        Also, SMSP sells a very well designed aftermarket cat for a very fair price (compared to their crazy expensive headers, their cat is at a giveaway price!) www.smsproducts.com if I remember correctly. When I get a good header (RMF, SMSP, or something of equal quality... maybe Bisimoto if Bisi shows some more H love!) I plan on getting the SMSP cat for street use. I MAY get a straight pipe for the track at that point, since a high-end header and exhaust system WILL benefit somewhat from the deletion of the cat. For a street car with anything short of a $1000 header, no cat doesn't do anything worthwhile... nothing worth polluting the air even more for!
        no offense intended, but the site's http://www.sms-products.com/

        that one will take you there, without the dash it takes you to some other site

        THEN: 1993 Accord 10th Ann. Ed.---------------------- NOW: 1996 Accord EX
        My Ride thread
        Flickr
        Originally posted by d112crzy
        And it can only get better. That's the best part.
        All I gotta really say is:
        People of cb7tuner, this AUTO is NOT a joke. It has impressed ME, the hater of auto's.

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          #19
          wow back from the dead

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