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low compression header

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    #1

    low compression header

    hi could any one tell me how to lower the compression im f20a7 header or recomend a low compression header i could use
    you help would be much appriciated as i am new to modifying am trying to learn accordinly
    many thanks jamie
    Tags: None
    #2
    low compression header? not flaming but um all i can say is do some research

    Old Ride-New Ride

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      #3
      have tried to search the forums but cannot find any thing on them ?

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        #4
        because as far i no they dont exist

        Old Ride-New Ride

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          #5
          First of all, why do want low compression? Are you going turbo?

          Second, maybe you're looking to lower the compression by putting a new HEAD on not HEADER?

          Comment

            #6
            Originally posted by 90AccordEXR
            First of all, why do want low compression? Are you going turbo?

            Second, maybe you're looking to lower the compression by putting a new HEAD on not HEADER?
            not really . . . unless the head has a bigger dome (more CC's) then it wont really do anything . . . you could raise compression by decking the head . . . pistons are the easiest way to raise/lower compression however
            -Mark-
            CB7
            CD5


            And if i could swim I'd swim out to you in the ocean
            Swim out to where you were floating in the dark.

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              #7
              Yah, thats what I was getting at, I didn't say that a different head will significantly change the compression, but yes a head with a higher dome would do that, so would a thicker head gasket. Anyways, this is getting as nobody really knows what he's talking about?

              Comment

                #8
                just want to know the best way to drop the compression in the head because i plan on turbo chargeing it with a td05 from a impretsa

                Comment

                  #9
                  thicker hg? that could help, but the easiest way is gona be with lower cr pistons.

                  -jose

                  CrzyTuning now offering port services

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                    #10
                    Originally posted by jambaps accord
                    just want to know the best way to drop the compression in the head because i plan on turbo chargeing it with a td05 from a impretsa
                    Dude our compression is perfect for turboing. You're better off leaving the compression as is rather than lowering it and having an less efficient lump to work with...1st gen DSMs have to run quite a bit more boost than us to make the same power from what I understand...


                    Originally posted by lordoja
                    im with you on that one bro! aint nothing beat free food and drinks any day of the week, even if its at a funeral

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                      #11
                      he has the f20 dude


                      -jose

                      CrzyTuning now offering port services

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                        #12
                        Ah...get an F22?


                        Originally posted by lordoja
                        im with you on that one bro! aint nothing beat free food and drinks any day of the week, even if its at a funeral

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                          #13
                          how can you tell how much the compression is lowered by changing the head gasket ? also does any one know where they sell the thicker headgaskets .

                          Comment

                            #14
                            I didnt think the f20a had that high of a compression to begin with... isnt like a little over 9:1? thicker IM gasket is only going to lower compression like .2.
                            Shift_BOOST

                            BOOM!

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                              #15
                              yah, a thicker head gasket isn't going to do too much... Like stated before, the best way to go is with low compression pistons. If you're going turbo you're going to want forged pistons anyways. Don't know if they sell for the f20 but here's some useful sites to check out:
                              www.dh-racing.com
                              www.atomicspeedware.com
                              www.importperformanceparts.net

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