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H23 plenum spacer

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    #1

    H23 plenum spacer

    OK guys here is the run down, I have a '91 LX with a F22A1 engine. I have only had this car running for about 2 weeks and have done these modification so far;

    1. Complete H23 intake manifold
    2. F22A6 cam
    3. PT6 ECU
    4. Cold Air Intake
    5. EGR block off
    6. FITV delete

    It's not much but parts are on the way.

    I have been seeing all the posts about people putting the plenum spacer on their H23A1/F22A6 hybrid manifolds for longer runners thus for added torque, but what about the complete H23 intake manifolds? The H23 already have longer runners why not put the plenum spacer on the H23 manifold? (Some people say hood clearance issues but I can't find any.)

    Well that's what I am here to test. Just so you guys know I will not be able to take it to a dyno, I will just being doing it all on feel because the closest dyno is 3 hours away from where I live and don't really have the time, money, or that many modifications to be going and playing on the dyno, so my apologies in advance. Maybe someone else can post their dyno sheet.

    Pictures will be up shortly and will be hopefully getting it all done by tonight. As of right now I have let the JB weld dry over night on my OEM IAB plate with butterflies taken out of course and am sanding away. Update soon.
    Originally posted by 92jdm
    if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.
    Tags: None
    #2
    I don't see the clearance issue.


    Sorry about the picture being too big
    Originally posted by 92jdm
    if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

    Comment

      #3
      Got the bolts they are 8x1.25x80mm and 8x1.25x100mm as posted in the DIY plenum spacer with the H23/A6 hybrid manifold.


      The spacer is done.


      Now I have read that people have put the spacer both above or below the secondaries, but which is better than the other? That's what I am going to find out, I am going to put it above and try it that way and then put it below and see if there is truly a difference between them and to see if there are any gain just from installing the blank plate.
      Originally posted by 92jdm
      if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

      Comment

        #4
        Hey guys I have got the spacer installed under the secondaries will have pictures up soon having some trouble with my camera, sorry guys.
        Originally posted by 92jdm
        if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

        Comment

          #5
          YA! Another Idahoan!
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          Comment

            #6
            Alright, got my camera to work again. Sorry that the pictures don't look that great.

            Spacer Installed

            And still have plenty of room under the hood



            Just so you guys know, on the bolt sizes be sure to get of course the (2) 8x1.25x100mm and on the other bolts be sure to get (3) 8x1.25x90mm, I didn't like the 80mm they were to short for my taste, they barely reached.

            Anyways, with the spacer below the secondaries the car seems to pull a little more from the start and did not notice any change in the top end. I will keep this set up for a full day or two and then will switch the spacer and secondaries around and see if that makes a difference.
            Originally posted by 92jdm
            if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

            Comment

              #7
              Originally posted by frootloops View Post
              YA! Another Idahoan!
              Yep from South-Central. It's hard to find people here in my neck of the woods that like Accords or even working on cars for that matter.
              Originally posted by 92jdm
              if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

              Comment

                #8
                hi hi i`m going to be doing mine soon also i still have to get some hoses

                Last edited by Teddy; 02-26-2010, 12:28 AM.

                Comment

                  #9
                  i'm pretty sure the f22a6 runners are longer than the h23
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                    #10
                    Originally posted by Teddy View Post
                    hi hi i`m going to be doing mine soon also i still have to get some hoses

                    That's sweet dude, I just couldn't find any other post with people putting the spacer on H23 intake manifolds so i figured I'd start one.

                    Not to question your build but aren't you worried about losing low end with both the secondaries deleted?? Just curiosity, I have heard that you lose low end. I haven't tried that yet but I have an extra blank plate that my buddy was going to use but I guess I can try it and see how it does, let me know how yours runs though, I am very interested keep me posted.
                    Originally posted by 92jdm
                    if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

                    Comment

                      #11
                      Originally posted by theSOB View Post
                      i'm pretty sure the f22a6 runners are longer than the h23
                      I am sorry and don't want to sound like a dick but, you are wrong sir. The F22A6 runners are shorter than the H23A1 runners and that is why some people switch to F22A6 runner to get better top end. If you feel that I am still wrong be my guest and research it or even get both of them and measure them. It has been discussed in many posts and many people have been told and even you have said;

                      Originally posted by theSOB View Post
                      the h23 IM really isnt much bigger than the f22 IM. looks like maybe 1/2" if that
                      So you already know the H23 intake manifold is bigger, why are you contradicting yourself???
                      Originally posted by 92jdm
                      if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

                      Comment

                        #12
                        Originally posted by Chico Suave View Post
                        I am sorry and don't want to sound like a dick but, you are wrong sir. The F22A6 runners are shorter than the H23A1 runners and that is why some people switch to F22A6 runner to get better top end. If you feel that I am still wrong be my guest and research it or even get both of them and measure them. It has been discussed in many posts and many people have been told and even you have said;



                        So you already know the H23 intake manifold is bigger, why are you contradicting yourself???
                        congrats, you do sound like a dick, you went ahead and made a post of the famous Spacer double stack H23/A6 IM....don't fuck it up by being a smart ass....if you want to correct someone correctly.....do it nicely not post like you own the site(deeve).....H23 does have longer runners....so what he was wrong don't have to go and have a 2010 H23 vs A6 Im debate..and go technical!.lol....let it go keep this thread going i did this spacer on my last two accords out of 5....love it.....Keep it up bro!...just remember take it easy!


                        Originally posted by deevergote
                        .......If they seem smart, and just trying to learn, I'll offer as much help as possible. If they seem stupid and lazy, I'll do my best to piss them off so they leave and never come back... while still answering the question.

                        Comment

                          #13
                          Originally posted by turboAccordHSF View Post
                          congrats, you do sound like a dick, you went ahead and made a post of the famous Spacer double stack H23/A6 IM....don't fuck it up by being a smart ass....if you want to correct someone correctly.....do it nicely not post like you own the site(deeve).....H23 does have longer runners....so what he was wrong don't have to go and have a 2010 H23 vs A6 Im debate..and go technical!.lol....let it go keep this thread going i did this spacer on my last two accords out of 5....love it.....Keep it up bro!...just remember take it easy!
                          I know thats my bad and I do apologize for it, I was a little heated from arguing with my buddy cause he was saying the other way and ya.. no excuse sorry for transferring that to here.
                          Originally posted by 92jdm
                          if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

                          Comment

                            #14
                            hi i got anther ab plate to ..i just painted it ..the person ran it with 2 open plates and got great gas mpg i`m hoping for the same

                            Comment

                              #15
                              Originally posted by Teddy View Post
                              hi i got anther ab plate to ..i just painted it ..the person ran it with 2 open plates and got great gas mpg i`m hoping for the same
                              Oh alright that's cool, let me know how it works for you. After this experiment I might try that too and see if it is better than having the IAB's at all.
                              Originally posted by 92jdm
                              if you have any mechanical inclination, it should be easier than a drunk highschool girl after prom.

                              Comment

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