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H22 Vs. H23

Discussion in 'Engine Building' started by XZILER8, Apr 25, 2003.

  1. XZILER8

    XZILER8 Senior Member

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    I have a '93 prelude Si which obviously has the h23.

    It has 130k miles on it now. It runs surprisingly strong and I have had zero problems with it to date.

    My question is this... Should I keep the h23, build it up and throw a turbo on it, or should I drop some money on a h22 and continue saving money and eventually build that up.

    performance mods that I have done so far are: I/H/E , cam gears, MSD SCI, fuel rail, and fuel pressure regulator.

    I have had no issues racing the majority of what's out there, but I always want more.

    I've seen a built h23 that put out 585 whp so I know my engine is capable, but is a h22 worth the money to have a 30hp jump start?

    Right now, I'm leanin towards keepin the h23 and buildin it up. However I would like to hear your opinions on what route to take....

    Thanks in advance
     
  2. Capt. Orygun

    Capt. Orygun Win the Day

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    I've been throwing questions around on the H23 for quite some time here. IMHO you should

    rebuild the engine for boost

    make a call to turbonetics

    consider world domination

    I THINK!!!!! that the H23 might be the best platform for honda boost made (that's just what I can gather)

    opinion based on (wide gears+closed deck+non V-tec+stupid big turbo kit=Owned like a mopho!!!)
     
  3. h22turbophilippines

    h22turbophilippines Junior Member

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    dude i think the VTEC head of the H22 fits the H23! i wanted to do that. that would be the bomb! 2.3 VTEC power!!! all you need is a VTEC h22 head and comp box! then build from there! more HP to everyone!
     
  4. XZILER8

    XZILER8 Senior Member

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    How sure are you that teh h22 head bolts on to the h23 block?

    I actually considered doing that last year, but was told that it's a very complicated swap and a LOT of machine work is involved to make it fit properly (whether or not that's B.S. ? I don't know)

    That would be really nice though!

    If it does fit, anybody know what a H22 head would cost? (Approximately)

    Thanks

    P.S. I also heard somewhere that the h22 doesn't hold boost all that well and that they tend to blow. Again, I don't know if that's B.S. or not.
     
  5. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    Build the H23 for boost, no sense in paying an extra two grand for VTEC.

    The H22 head fits on an H23 block with a similar amount of work to an LS/VTEC setup. In my opinion, you'd only want to do this if you want to stay n/a.

    The H22 doesn't hold boost well because it's got a fairly high compression ratio from the start. 10.2:1 USDM, 10.6:1 JDM. The H23 sits around a 9.5:1 (I think), which is much more boost-friendly.
     
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