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f22a6 w/f22b dohc head

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    f22a6 w/f22b dohc head

    If I were to go n/a with the above mentioned setup could I reach 220whp with the following modifications (basic bolt-ons included:

    Head-pnp,crower stage 2/3 cams,valves,valve springs,retainers,obx cam gear
    Block-12:1 bisimoto forged pistons
    Ecu-chipped p28 or hondata s200

    #2
    why not go with bisi cams?

    Comment


      #3
      Interested in the answer to this. I'm thinking of doing an unmodded version of this shortly.


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        #4
        Originally posted by sulimed View Post
        why not go with bisi cams?
        I don't want to go through the hassle of shipping in my stock cams but then again I don't actually plan on instaling the head until its fully built so who knows.

        Comment


          #5
          The reason for choosing this setup is because a major setback with the f22 is the single cam so I figured that if I swapped it for a dual cam head that could fix that problem resulting in much higher numbers and possibly revs. Also since the f22b is pretty much a f22 block with an h23 head it should bolt right up and also being that its 85mm and not 87mm that will eliminate the problem with hotspots. Right? Lol this is all speculation for me so if anyone has any suggestions I would definitely appreciate the help.

          Comment


            #6
            The F22B DOHC chamber while being 85mm is still a few ccs bigger than the F22A. As a result you will lose some compression ratio and therefore some power. The OE JDM F22B cams are pretty tiny so with low CR and tiny cams you'll not get much of a boost in power over the F22A that also has low CR and tiny cam(s). Going from 8:1 to 12:1 wil get you more torque (which means more power) and better fuel economy (though you'll have to run 91 oct) and won't require much tuning on stock cams. Might get you to 155whp or so. Power will fall flat on its face at about 5300 rpm though without a cam upgrade.
            VTEC G27? = ???whp ???wtq
            VTEC G23 = 220whp 191wtq
            nonVTEC G23 = 200whp 183wtq
            K24 iVTEC hybrid = 260whp 210wtq

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              #7
              Originally posted by PirateMcFred View Post
              The F22B DOHC chamber while being 85mm is still a few ccs bigger than the F22A. As a result you will lose some compression ratio and therefore some power. The OE JDM F22B cams are pretty tiny so with low CR and tiny cams you'll not get much of a boost in power over the F22A that also has low CR and tiny cam(s). Going from 8:1 to 12:1 wil get you more torque (which means more power) and better fuel economy (though you'll have to run 91 oct) and won't require much tuning on stock cams. Might get you to 155whp or so. Power will fall flat on its face at about 5300 rpm though without a cam upgrade.
              He's already planning on different cams.

              Originally posted by TuneAccordingly View Post
              If I were to go n/a with the above mentioned setup could I reach 220whp with the following modifications (basic bolt-ons included:

              Head-pnp,crower stage 2/3 cams,valves,valve springs,retainers,obx cam gear
              Block-12:1 bisimoto forged pistons
              Ecu-chipped p28 or hondata s200
              220 sounds possible, but your specs are pretty sketchy. What size valves? What size TB do you plan on using? What size exhaust? Little things make a big difference when you add them together.

              Comment


                #8
                Originally posted by visualpoet View Post
                He's already planning on different cams.



                220 sounds possible, but your specs are pretty sketchy. What size valves? What size TB do you plan on using? What size exhaust? Little things make a big difference when you add them together.
                H23 tb and manifold, 2.5 in exhaust, cold air intake, possibly itb's in the future

                Comment


                  #9
                  Originally posted by visualpoet View Post
                  He's already planning on different cams.



                  220 sounds possible, but your specs are pretty sketchy. What size valves? What size TB do you plan on using? What size exhaust? Little things make a big difference when you add them together.
                  H23 tb and manifold, 2.5 in exhaust, cold air intake, possibly itb's in the future, and normal size valves possibly .5-1mm oversize

                  Comment


                    #10
                    Originally posted by PirateMcFred View Post
                    The F22B DOHC chamber while being 85mm is still a few ccs bigger than the F22A. As a result you will lose some compression ratio and therefore some power. The OE JDM F22B cams are pretty tiny so with low CR and tiny cams you'll not get much of a boost in power over the F22A that also has low CR and tiny cam(s). Going from 8:1 to 12:1 wil get you more torque (which means more power) and better fuel economy (though you'll have to run 91 oct) and won't require much tuning on stock cams. Might get you to 155whp or so. Power will fall flat on its face at about 5300 rpm though without a cam upgrade.
                    So with a cam upgrade I should see 200whp easily right? But as far as the stock head its a downgrade, but has potential once you switch out for 2 big cams, right?

                    Comment


                      #11
                      Would it just be better to buy a jdm f22b longdblock or h23 because I know I can get an h23 for dirt cheap. Would the h23 also make more power with such mods due to the larger cylinder bore thereby making 2.3L? 87mm>85mm, 2.3L>2.2L=h23 n/a>f22n/a?

                      Comment


                        #12
                        Sorry to hijack the tread, but am I to understand that you guys are saying that putting a F22b head on a F22A6 block would be a downgrade if left stock??


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                          #13
                          Originally posted by brownhornet View Post
                          Sorry to hijack the tread, but am I to understand that you guys are saying that putting a F22b head on a F22A6 block would be a downgrade if left stock??
                          Not so much a downgrade as not worth the effort.

                          Comment


                            #14
                            Originally posted by visualpoet View Post
                            Not so much a downgrade as not worth the effort.
                            So do you think an h23 would be a better choice? Possibly a vtec head swap? Im just trying to come up with some n/a motor alternatives rather than just swapping in an h22. But if all else fails then that's just what I'll do.

                            Comment


                              #15
                              IMHO if you're going to swap the head on any motor, it better be an H22 head. The head alone should get you to about 155whp I believe. Then throw in your Bisi 12:1 pistons, larger cams and simple I/H/E with a good tune....I'd say 200whp should be quite attainable. But as always the simple alternative is to just swap an H22, preferably JDM; add I/H/E and tune.
                              '94 JDM H22A: 178whp 146wtq

                              Originally posted by deevergote
                              If you say double dutch rudder, i'm banning you...

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