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uber settings/low comp pistons

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    #1

    uber settings/low comp pistons

    This is my NEW situation , so got a new computer from r33 and she works mint, using a sweet map that works great, but i am running into a problem at idle. It is really sloppy, like not holding constant at all, and the vacuum is around 16-18. I am running lower compression pistons (like 8;1) but would this account for about a loss of 6 in/hg?
    It is throwing the IAC code, and have tested that also. I have hooked direct current to it to MAKE sure that it opens and it smoothes it a bit, but still wont pull more then 20 in/hg of vacuum.
    My brother suggested cam timing could be off (maybe skipped a tooth) and that could be a reason for it being sloppy, but it isnt throwing the TDC code from the computer...
    Most of u know the engine i am running, so i am not going to go on about it. I am using uber to change the curve, and at idle the A/f is around about 21 and then as soon as i give it some gas she jumps right to 14-12 which i like. HAvent tested under boost yet bc i need higher octane fuel and havent gotten to the gas station as of yet...
    My baby laying down some power...

    http://www.youtube.com/watch?v=kd_Q8HSIyqA
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    #2
    seems like a mechanical problem more than an uber problem tho. Do a compression test and make sure everything is ok on the inside. Check the timging like your brother said. And completely fix the IAC. If your around 20 in/hg you'll be fine, mine runs about a 20-21 in/hg at idle so if your within 1-2 in/hg your fine. Is it only idle thats weird? Hold 2000rpm and check the a/f's then. You should be pulling almost exactly 19in/hg if everything is ok.
    Knowledge is power...in EVERY sense of the word

    FSAE (F Series Accord Enthusiasts) ..."A dying breed thats taking it to the next level" #12

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