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Will H22 auto trans work with 91 tcu?

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    #1

    Will H22 auto trans work with 91 tcu?

    As the title say was wondering if an h22 auto trans will work with my 91 f series auto tcu? Otherwise I will just run another stock auto trans. Too expensive to switch to manual and it's my wife's car but I plan on boosting later. I know they bolt right up but I wanna make sure that the tcu will mesh with this. Couldn't find anything based on this search. Also as stupid as it sounds the sport mode button makes this car kick ass to drive.
    91 accord daily
    Tags: None
    #2
    I have an h23 trans and I ran the stock Tcu and it shifted like hell and didn't want to ever downshift. Just today I switched to the h23 trans ecu and it shifts smoother and will downshift when I boot it in the ass:

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      #3
      The TCU tells the transmission to shift at a certain RPM. It should work, though it won't make the best use of the transmission's gearing.






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        #4
        It should "work" but the way that the trans is geared as compared to the factory one is going to blow. Because your TCU will cause shifting problems. well not "problems"

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          #5
          You really didn't say anything there...






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            #6
            So get the TCU that goes with the trans. Good to know. I'll see what I can find then make my decision.
            91 accord daily

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              #7
              Originally posted by AccRod91ex View Post
              So get the TCU that goes with the trans. Good to know. I'll see what I can find then make my decision.
              The best TCU to use would be the one that matches the rev range of your current motor. So in your case it would be better to stick with your Accord's TCU, otherwise when you WOT, the H22/H23 TCU will not shift when you hit redline of your motor.
              PT3/6 Development Thread | My 1991 LX Coupe | DIY: 90-93 Tcu Fix

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                #8
                I'll have to find out what the shift points are for a h22 trans then and see what they are vs my f22 redline. Mine is about 6200 rpms iirc. And I think an h22 is around about 6800. Unless I throw a bigger cam in
                Last edited by AccRod91ex; 05-20-2014, 04:33 PM.
                91 accord daily

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                  #9
                  My brain hurts...






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                    #10
                    The TCU will be configured for different gearing, therefor shifting early/late and possibly downshifting sporadically.

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                      #11
                      The TCU will shift at a given RPM.






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