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head & intake manifold compatibility

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    #1

    head & intake manifold compatibility

    I have a F22B1 from my totalled 95 EX that I plan on putting into my hatch. I am thinking of starting the build on the motor after the holidays. But first I have some things I have to decide first. I have searched for these answers but I have not been able to find deffinative answers. So I'm hoping some of you can help me out.

    1. It has been brought to my attention that an a4 or a6 head would have better flow than the b1 head currently on the motor. Is the flow that much better, enough to warrant buying a new head and swapping?

    2. Does the a4 or a6 head mount up to the b1 block without problems? Or are there any issues with this swap?

    3. If I were to go with an a4 or a6 head, which intake manifold would be best to go with. stock? H23?

    4. If the flow of the a4/a6 head isn't that much better than the b1 head, then which intake manifold would be best to use with the b1? The H23 intake manifold will mount up to the b1 head, correct? If so, what needs to be done?

    Any help or links to threads with answers would be great.

    Thanks
    Last edited by TouringAccord; 11-22-2005, 11:20 PM.
    Tags: None
    #2
    is the f22b1 a vtec? if so wouldnt that be better the a6 or a4?

    Old Ride-New Ride

    Comment

      #3
      yes, the b1 is vtec. But that doesn't necessarily mean it's better. Thats part of what I'm trying to figure out to make my decision. F22's make good torque numbers but tend to lose it up top. So with the better flow of the a4/a6 head and intake manifold, better the top end should be.

      So part of what I'm trying to get answered is, is the better flow of the a4/a6 good enough to out way the b1 vtec?

      Comment

        #4
        yes, a cam is on the list. I just want to make sure I'm going to be going with the better head. I figure I'll be going with an H23 IM either way though for the dual runner setup. So, rickyduckworth, your saying to just stick with the b1 head and get a good cam and IM?

        Comment

          #5
          ok, thanks. It's answers like those that I'm looking for.

          Not that I don't value your (rickyduckworth) replies, but are their any others that have some input on these questions I have?

          Thanks

          Comment

            #6
            Originally posted by TouringAccord
            yes, the b1 is vtec. But that doesn't necessarily mean it's better. Thats part of what I'm trying to figure out to make my decision. F22's make good torque numbers but tend to lose it up top. So with the better flow of the a4/a6 head and intake manifold, better the top end should be.

            So part of what I'm trying to get answered is, is the better flow of the a4/a6 good enough to out way the b1 vtec?
            whati would do is keep the vtec head. use the h23 or a6 intake manifold (have to trim the intake gasket but make sure anyway) they make cams and valvetrain for the sohc vtec. so theres ur advantage on more flow in the top end, were the non-vtec head doesnt have this advantage

            Comment

              #7
              thanks

              so the general consences is to just keep the B1 head and get a better flowing intake manifold like the H23.

              Now I just need to find a complete H23 intake manifold.

              Comment

                #8
                u might have allready seen this but dhracing makes a real sick intake mani ...its says they come for f22s but they dont specifiy which f22s maby all of them...but id def cheak it out maby a bit more expensive but definalty worth the money

                Old Ride-New Ride

                Comment

                  #9
                  nope, never heard of those but ouch thats a lot. As for F22's, I want to say all F22 IM's share the same port location and mounting. Is it really worth the extra money over an H23 IM thats been P&P?

                  Don't get me wrong, I want all the power I can get out of this all-motor setup but I personally prefer the look of the stock manifolds over those custom ones. So if the gain isn't that much I think I'll just stick with a stock H23 IM with a P&P. But if it is that much better, then I may really consider it.

                  Either way, thanks for the suggestion.

                  Comment

                    #10
                    does anyone know the difference between an H23 throttle body and an H23 throtle body? I'm looking at buying an H23 intake manifold from this guy but he doesn't have the H23 TB but would include an H22 TB.

                    Whats the difference? Would it hurt to buy this and use the H22 TB on the H23 IM? Or would it need to be bored out? Is there anything else other than boring it out that would or might need to be done?

                    Thanks

                    Comment

                      #11
                      Originally posted by TouringAccord
                      does anyone know the difference between an H23 throttle body and an H23 throtle body? I'm looking at buying an H23 intake manifold from this guy but he doesn't have the H23 TB but would include an H22 TB.

                      Whats the difference? Would it hurt to buy this and use the H22 TB on the H23 IM? Or would it need to be bored out? Is there anything else other than boring it out that would or might need to be done?

                      Thanks
                      Well, both the H22 and H23 T/B's are 60mm, now the bolt pattern, I'm not sure if it's the same or not! Maybe compare gaskets, I'm leaning on they will be the same, but not 100% sure. I know they both have the FIV on the underside of the T/B. You could bore it out, if you're getting a nice cam for it, the bore it out!

                      So are the IM's from the F22B SOHC and the F22A the same? I was always under the impression that the port spacing on both manifolds were diff. b/c I know the exhaust port pattern is way different!

                      Dan

                      Comment

                        #12
                        From what I've found on other sites (Honda-Tech) the TB's are pretty much the same.

                        As for the intake ports. From what everyone has said so far is that all F22's have the same intake ports. There is a member on AccordinglyDone that has already swapped an H23 intake manifold onto his F22B1 head. I posted this same question on there and he said the TB he has on his H23 manifold is from an H22.

                        He did do a write-up and said there is some grinding needed to mount it and some issues with mounting the thermostat housing. Other than that thought his write-up was pretty straight forward.

                        Comment

                          #13
                          ^Hey, nice info. That's good to know that all F22's have the same intake port pattern. Good luck w/ your plans for the manifold!

                          Comment

                            #14
                            thanks

                            hey, got a question for you. In your sig you have listed something about a EGR service port set screw mod. Could you explain a little more on this. It sounds sorta self explainitory but I want to make sure.

                            Comment

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