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  • stock injector upgrade limit

    Concerning a 2nd gen STOCK computer running injectors, what is the largest cc rating you can go with without having issues? 240cc/min? 360cc/min?
    im wanting to run 7psi. thanks!
    -Conrad<br /><br /><br />Pioneers just end up with a bunch of arrows sticking out of their backs.

  • #2
    FWIW, 37 lbers would not idle on a stock OBD 1 94. not without playing with fuel pressure. which i wont do.

    i think 33 lbers will, but 7 psi will be pushing those hard.
    sigpic
    2005 Legacy GT
    2004 Vue V6 AWD
    1995 SL1

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    • #3
      don't plan on just throwing larger injectors on the stock fuel system and ecu and think it will run well, or even half way decent
      -Vinny

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      • #4
        saturnshadow runs 33lbers + a RRFPR + ford super 60 and hes been turbo for quite a while. i also think hes lucky it still runs. he must drive off boost alot.

        megasquirt FTW!
        sigpic
        2005 Legacy GT
        2004 Vue V6 AWD
        1995 SL1

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        • #5
          exactly
          -Vinny

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          • #6
            Originally posted by Schizzo97SC2
            don't plan on just throwing larger injectors on the stock fuel system and ecu and think it will run well, or even half way decent
            exactly. it can get to the point that the ecu will run the injectors down so the car goes lean then it will pick it back up. you have to have some kind of controller with bigger injectors or a seperate set of injectors with their own controller.
            Ian---The Fat Ass

            1995 SL2-High compression engine FOR SALE
            2010 Chevy Cobalt SS- tuned with plenty of goodness
            2002 SC2-New daily
            2017 Kawasaki Ninja 650 KRT- got a stupid deal
            2003 Ford Taurus SES- free daily beater

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            • #7
              is saturnshadow on stock pcm? what year is his ride?
              -Conrad<br /><br /><br />Pioneers just end up with a bunch of arrows sticking out of their backs.

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              • #8
                stock pcm

                93 sc2 i think.


                megasquirt is less than $200 and as easy to hook up as a stereo (IMO).
                sigpic
                2005 Legacy GT
                2004 Vue V6 AWD
                1995 SL1

                Comment


                • #9
                  Originally posted by brentg
                  stock pcm

                  93 sc2 i think.


                  megasquirt is less than $200 and as easy to hook up as a stereo (IMO).
                  whoa I thought it was past 500 in price. thanks.

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                  • #10
                    Originally posted by brentg
                    stock pcm

                    93 sc2 i think.


                    megasquirt is less than $200 and as easy to hook up as a stereo (IMO).
                    Course the biggest problem is tuning it. Ive read guides for DSM's that make it sound so easy, but for a satty [img]{SMILIES_PATH}/confused.gif[/img]

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                    • #11
                      ms is the same all around, got to do the tuning. if you understand how it functions and know how to mess with it, then yeah it probably going to be easy, but if you have no idea then its going to be hard. must read up on it. but saying a dsm would be easier then a saturn isnt right. they both go through the same thing, you just have to know how to tune it.
                      Ian---The Fat Ass

                      1995 SL2-High compression engine FOR SALE
                      2010 Chevy Cobalt SS- tuned with plenty of goodness
                      2002 SC2-New daily
                      2017 Kawasaki Ninja 650 KRT- got a stupid deal
                      2003 Ford Taurus SES- free daily beater

                      Comment


                      • #12
                        MS is pretty easy
                        -6S Resident Mechanical Forensics member #001.
                        1995 SC2 Turbo 3.6L DOHC, 6sp manual, Ford 8.8 rearend running on MS3x.
                        1998 F-250 5.4L triton...stock.

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                        • #13
                          Originally posted by brentg
                          i think 33 lbers will, but 7 psi will be pushing those hard.
                          That depends on how efficient the system is. I was running 30's on 10 psi for over a year.


                          You should look into an 034 efi gimmick, a megasuirt, or at least an SAFC
                          -6S Resident Mechanical Forensics member #001.
                          1995 SC2 Turbo 3.6L DOHC, 6sp manual, Ford 8.8 rearend running on MS3x.
                          1998 F-250 5.4L triton...stock.

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                          • #14
                            MS is a piece of cake. my car started on the first try. runs just fine and hasnt left me down in over 2000 miles.
                            sigpic
                            2005 Legacy GT
                            2004 Vue V6 AWD
                            1995 SL1

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                            • #15
                              Originally posted by brentg
                              saturnshadow runs 33lbers + a RRFPR + ford super 60 and hes been turbo for quite a while. i also think hes lucky it still runs. he must drive off boost alot.

                              megasquirt FTW!
                              there was another guy i believe that did the same thing; i think it was supersaturn on TSN running 33 i think too without any fuel tuning
                              <br /><br />

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