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Q45 Fuel Pump, Injectors, MAF?

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  • Q45 Fuel Pump, Injectors, MAF?

    Since Z31.com is down I tried searching for this info here but I didnt find anything.
    I'm heading to the JY because they have a Z32 and a (Q45?) Infinity V8, both were in a crash.
    I'm crossing my fingers that the Z32 still has it's MAF and Fuel Pump. I already know that the brake Calipers
    have been sacked.

    I was wondering if there is anything worth taking from the Infinity. I believe
    I read on Z31.com a long time ago that it's fuel pump is the same as the Z32, but not the AFM (MAF whatever).
    correct me if I'm not remembering right. How 'bout the infinity injectors, worth it?

    For some reason, there are a million RX7's there too. So i'll be doing some injector shopping aswell.
    Any advice or anything else to look out for will be greatly appreciated before I leave.
    8)
    http://www.vgpowered.com
    Bridging the gap between VG communities...

    Z shirts and more http://www.cafepress.com/zcargifts

  • #2
    Q45 fuel pump is the same as the Z32
    Q45 maf is much larger but said not to "read" as much air/power as the Z32's. (Q maf is around 3", maybe slightly larger)
    Q45 injectors are 370 cc

    The Q45 throttle body is taken a lot as its large enough to swallow a small child or pet. :lol: Its right over 3 inches as well... but is usually overkill for most street setups. Just goes to show to many people think bigger is better. :lol:

    Comment


    • #3
      MachZ wrote: Q45 fuel pump is the same as the Z32
      Q45 maf is much larger but said not to handle as much power as the Z32's. (Q maf is around 3", maybe slightly larger)
      Q45 injectors are 370 cc

      The Q45 throttle body is taken a lot as its large enough to swallow a small child or pet. :lol: Its right over 3 inches as well... but is usually overkill for most street setups. Just goes to show to many people think bigger is better. :lol:
      Thank you for the advice!!!
      http://www.vgpowered.com
      Bridging the gap between VG communities...

      Z shirts and more http://www.cafepress.com/zcargifts

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      • #4
        MachZ wrote: Q45 maf is much larger but said not to "read" as much air/power as the Z32's. (Q maf is around 3", maybe slightly larger)
        It should be 90mm.. (3.54330709 inch)
        Jukka Kivinen - Europe / Finland - '88 Turbo 2+2 Targa
        Datsun Nissan Sports Cars of Finland
        http://www.z31turbo.com / http://www.z31na.com

        Comment


        • #5
          [quote]Kennedy wrote:
          Originally posted by MachZ
          Q45 maf is much larger but said not to "read" as much air/power as the Z32's. (Q maf is around 3", maybe slightly larger)

          It should be 90mm.. (3.54330709 inch)
          it's not

          it's 80mm

          a lot of the 400+ whp S chassis guys are using them with bigger plenums

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          • #6
            Z32 NA vs TT fuel pump

            Just got back. I snagged the fuel pump which is good.
            I'm sure this has been asked before but is there a difference between Z32 NA and TT fuel pumps?
            http://www.vgpowered.com
            Bridging the gap between VG communities...

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            • #7
              I remember someone looking it up in fast and posting a picture. The part reference/lookup number is the same, but the part number itself is different (meaning the pumps are different, at least to Nissan).

              Comment


              • #8
                [quote]Andrevas wrote: [quote=Kennedy]
                Originally posted by MachZ
                Q45 maf is much larger but said not to "read" as much air/power as the Z32's. (Q maf is around 3", maybe slightly larger)

                It should be 90mm.. (3.54330709 inch)it's not

                it's 80mm

                a lot of the 400+ whp S chassis guys are using them with bigger plenums
                Z32TT 80mm
                Q45 90mm

                And google says ->


                The '91-95 Q45 MAF is 90mm
                http://www.drifting.com/forums/showthread.php?p=187821 ->
                Q45
                90mm MAF- $90

                http://www.nissanforums.com/general-240 ... -swap.html ->
                As you can see, the 90mm Q45
                MAF is much larger than the Z32 TT MAF.

                google]www.ka-t.org/forums/viewtopic.php%3Ft%3D1530%26view%3Dnext%26sid%3D439 fe0d908eb7636d3a8f31e4f73eefa+q45+maf+90mm&hl=fi&g l=fi&ct=clnk&cd=18]google cache[/url] All from a 1990 Q45 with 126K miles. Car was rearended. MAF-- includes pigtail/plug, 90mm serial 22680-6IU00


                oh.. and btw. my friend who makes customs chips for SX/ZX cars solds used Infiniti Q45 90mm MAF's.

                Still want to argue?
                Jukka Kivinen - Europe / Finland - '88 Turbo 2+2 Targa
                Datsun Nissan Sports Cars of Finland
                http://www.z31turbo.com / http://www.z31na.com

                Comment


                • #9
                  My friend has an aftermarket programmable ecu in which you can remove the AFM all together...

                  (Why ya'll call it a MAF in the states I dont know, mass air flow what? lol)
                  http://youtube.com/c/zcartube

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                  • #10
                    300zxt wrote: My friend has an aftermarket programmable ecu in which you can remove the AFM all together...

                    (Why ya'll call it a MAF in the states I dont know, mass air flow what? lol)
                    MAF is technically a better name since the hot wire is measuring mass of the air.
                    Try not to be a Yahoo

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                    • #11
                      Jason84NA2T wrote: I remember someone looking it up in fast and posting a picture. The part reference/lookup number is the same, but the part number itself is different (meaning the pumps are different, at least to Nissan).
                      I pulled the pump from a Z32 NA while I was there aswell as the Q45's. The pumps themselves looked exactly the same. I wonder if they are rated the same.
                      I'll post pictures up here for the sake of having some reference since Z31.com is unreliable. Atleast it wont be a repost here :lol:
                      http://www.vgpowered.com
                      Bridging the gap between VG communities...

                      Z shirts and more http://www.cafepress.com/zcargifts

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                      • #12
                        [quote]crowbar wrote:
                        Originally posted by 300zxt
                        My friend has an aftermarket programmable ecu in which you can remove the AFM all together...

                        (Why ya'll call it a MAF in the states I dont know, mass air flow what? lol)
                        MAF is technically a better name since the hot wire is measuring mass of the air.
                        And air flow meter isnt, metering the flow of air? lol At least it's a complete acronym, which MAF isn't hehe... 8)
                        http://youtube.com/c/zcartube

                        Comment


                        • #13
                          Kennedy wrote:
                          Z32TT 80mm
                          Q45 90mm

                          And google says ->


                          The '91-95 Q45 MAF is 90mmhttp://www.drifting.com/forums/showthread.php?p=187821 ->
                          Q45
                          90mm MAF- $90

                          http://www.nissanforums.com/general-240 ... -swap.html ->
                          As you can see, the 90mm Q45 MAF is much larger than the Z32 TT MAF.

                          google]www.ka-t.org/forums/viewtopic.php%3Ft%3D1530%26view%3Dnext%26sid%3D439 fe0d908eb7636d3a8f31e4f73eefa+q45+maf+90mm&hl=fi&g l=fi&ct=clnk&cd=18]google cache[/url] All from a 1990 Q45 with 126K miles. Car was rearended. MAF-- includes pigtail/plug, 90mm serial 22680-6IU00


                          oh.. and btw. my friend who makes customs chips for SX/ZX cars solds used Infiniti Q45 90mm MAF's.

                          Still want to argue?
                          Yup, 90 mm is right. I have one

                          300zxt wrote:
                          And air flow meter isnt, metering the flow of air? lol At least it's a complete acronym, which MAF isn't hehe...
                          I think its technically supposed to be MAFS... mass air flow sensor. I've also see it called MAS or mass air/airflow sensor and MFS, mass flow sensor.

                          Either way though, the MAF/MAFS/MAS/MFS is usually the hot wire type and an AFM is usually a flapper type, where the air flowing in causes a flap to move telling the ECU how much air is coming in.

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                          • #14
                            We call it an AFM here in Australia, and so does the manual lol That's enough for me hehe...

                            My friend uses an ECU called the EMS stinger, in which you can do away with the AFM all together. He runs 10's in his RB30ET powered VL Commadore (GM), that's what I plan to use awsell as there's no need to even bother getting better AFMs that meter more air. Fairly useless really especially when you can get ECU's that dont need it, money best spent elsewhere!
                            http://youtube.com/c/zcartube

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                            • #15
                              map sensors cost money too, and so does the temp sensor you need to be accurate.... their only advantage is you can sample the intake closer to the engine and make quicker changes to fueling based on their feedback

                              and the afm/mas(/maf ) argument is silly, the afm would be a generic name like engine, the mass-air-sensor would be the most correct/specific to ours, whereas the air-flow-meter would be fine for describing the flapper type that moves based on the wind pressure inside

                              the flapper style is actually quite restrictive

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