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  • Injector Upgrades

    ok well recently i purchased a megasquirt system.MegaSquirt II v3.0 PCB Assembled + 4 BAR MAP , and im just about ready to buy some injectors only i am unsure wich ones to buy. im wondering if z32 injectors drop straight into the stock location.

    im looking at these.
    http://cgi.ebay.com/ebaymotors/NEW-SARD ... enameZWDVW

    if you have any better ideas, please let me know.
    http://www.youtube.com/user/onefast87

  • #2
    NO they do not drop in. Go look at your car to see what the injectors look like. That will eliminate a LOT of confusion on what might fit. Also, there are a lot of references on this site and z31.com indicating what will fit and what won't. Including some pictures and good descriptions.
    http://z31performance.com/forum/viewtopic.php?f=5&t=147

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    • #3
      i know what the stock injectors look like, i didnt find very much info on injectors on jasons site. im just looking for some huge injectors that will fit the stock plenum, i will be making fuel rails.

      anyone have an opinion on where i should buy my injectors?
      right now im looking at http://www.rceng.com/
      http://www.youtube.com/user/onefast87

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      • #4
        This is where I got my 860cc siemens fuel injectors. I think I paid 450 for 6 of them. Same physical size as stock injectors.

        http://www.fiveomotorsport.com/Injector_Sets.html
        85 Z31 6.0 LSX turbo 766whp/792wtq
        04 GTO, LS6, big cam, porting, N20... underway for summertime daily driver.

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        • #5
          If you are looking at legit suppliers like RC then you shouldnt need anything from us. They just need to know which style the in and out are and which plug you want on the connector and then flow rate. DONE!

          450 for 6 that large is not a bad price at all. I'd check with them if you think it would be advantageous to go that large.
          http://z31performance.com/forum/viewtopic.php?f=5&t=147

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          • #6
            Steve88t wrote: If you are looking at legit suppliers like RC then you shouldnt need anything from us. They just need to know which style the in and out are and which plug you want on the connector and then flow rate. DONE!

            450 for 6 that large is not a bad price at all. I'd check with them if you think it would be advantageous to go that large.
            I personally think that going large on injectors is a good thing. You can always tune them down. Even if you only need about 50% duty cycle at full boost you still have room to grow, air wise. That and when you start buying large injectors (500cc's or more) the price doesnt really change with the size of the injector. So you might as well get some big ones and just turn down the pulse width if you need to.

            On the other hand, you CAN go too large. So large that your car will flood at idle no matter how much you turn down the injectors. You can even turn them down far enough to where they dont even open at all. This is common on lots of smaller displacement super high horsepower engines. If you ever notice a lot of them have a high idle to accomodate for the flooding at normal idle.
            Attached Files
            85 Z31 6.0 LSX turbo 766whp/792wtq
            04 GTO, LS6, big cam, porting, N20... underway for summertime daily driver.

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            • #7
              thanks alot satan, i was wondering where exaclty on the page you found your 860's? or do i email them about it
              http://www.youtube.com/user/onefast87

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              • #8
                onefast87 wrote: thanks alot satan, i was wondering where exaclty on the page you found your 860's? or do i email them about it

                Yeah, I would email them or somthing. They have so many injectors I wouldn't think they would list them all. They do have them though along with other brands of the same size as well.

                "if you have injector questions, call our Tech Line at (562) 867-4999
                "
                85 Z31 6.0 LSX turbo 766whp/792wtq
                04 GTO, LS6, big cam, porting, N20... underway for summertime daily driver.

                Comment


                • #9
                  Thanks Satan, I think you just found my injector upgrade for me. Can get those Siemens for AU$110 each over here. Way cheaper than Nismo or the Japanese brands aren't they.

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