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  4. EV1 vs EV6 Injectors for OBD1 m50

EV1 vs EV6 Injectors for OBD1 m50

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  • jc43089J
    jc43089J
    jc43089
    wrote on last edited by
    #9

    Ok, I will report back with results.  Also should I buy new ones or a flow matched set from Ebay?

    2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
    3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
    '89 325i Vert, Alpine White: 5spd swapped, sold.

    '04 Toyota Sienna: 24V to 24V swap in progress

    '05 Volvo V70R, 6spd.  200k
    '85 Toyota LandCruiser: Lifted, gas hog. 205k
    '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

    1 Reply Last reply
    0
    • B
      B
      B C
      wrote on last edited by
      #10

      If you get new ones, make sure they arent counterfeits. The 42# Bosch "Green Giant" counterfeits run rampant on ebay

      1 Reply Last reply
      0
      • jc43089J
        jc43089J
        jc43089
        wrote on last edited by
        #11

        Ordered a set of OE refurbished/matched set claiming to be within 2%.  We shall see.  It was only 65 bucks.  It seems to be a not very common injector, used in Ford Contours/Mystique with 2.5l SVT engine from 1998-2000, and Cougars in 1999.  No wonder it was hard to find a part number.  I'd rather not do a tune now, I already have a Dinan chip and this coupe is mostly a beater.  I would like to experiment and see how the gen3 design performs.  It would be great to know of a drop in upgrade.  People use m50 injectors in m20 engines too so this might be a good option for them too.

        2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
        3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
        '89 325i Vert, Alpine White: 5spd swapped, sold.

        '04 Toyota Sienna: 24V to 24V swap in progress

        '05 Volvo V70R, 6spd.  200k
        '85 Toyota LandCruiser: Lifted, gas hog. 205k
        '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

        1 Reply Last reply
        0
        • EarlE
          EarlE
          Earl
          wrote on last edited by
          #12

          Do m50's and m52's use the same injectors?

          museum sig 2earl.jpg

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          0
          • jc43089J
            jc43089J
            jc43089
            wrote on last edited by
            #13

            No, I think m52/s52 uses the pinktops.  I think 21.5lb/hr but not sure at what pressure.

            2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
            3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
            '89 325i Vert, Alpine White: 5spd swapped, sold.

            '04 Toyota Sienna: 24V to 24V swap in progress

            '05 Volvo V70R, 6spd.  200k
            '85 Toyota LandCruiser: Lifted, gas hog. 205k
            '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

            1 Reply Last reply
            0
            • EarlE
              EarlE
              Earl
              wrote on last edited by
              #14

              It looks like " The rating at 3.5 bar (50.75 psi) (e36) is 23.8. "

              https://www.bimmerforums.com/forum/showthread.php?417171-NE1-know-flow-rate-on-stock-M52-injectors

              museum sig 2earl.jpg

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              0
              • jc43089J
                jc43089J
                jc43089
                wrote on last edited by
                #15

                Installed last night.  I reset the computer so it is still adapting, it runs great, starts quicker and seems smooth.  I don't know how much is due to these injectors being freshly refurbished vs my old ones that may be original with a zillion miles on them and also sat for at least 5 years recently.

                IMAG0402zpsvcxog0ci.jpg

                2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
                3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
                '89 325i Vert, Alpine White: 5spd swapped, sold.

                '04 Toyota Sienna: 24V to 24V swap in progress

                '05 Volvo V70R, 6spd.  200k
                '85 Toyota LandCruiser: Lifted, gas hog. 205k
                '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

                1 Reply Last reply
                0
                • B
                  B
                  B C
                  wrote on last edited by
                  #16

                  Glad to hear a positive report, i noticed crisper throttle response and slightly better mileage, there is no knowing for sure how much is attributed to dirty vs clean injectors like you said, but more modern design and better atomization is sure to benefit things

                  1 Reply Last reply
                  0
                  • jc43089J
                    jc43089J
                    jc43089
                    wrote on last edited by
                    #17

                    Yes, I will be monitoring fuel mileage.  It is pretty wild to see the difference in spray on some of the youtube videos that do side by side.

                    2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
                    3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
                    '89 325i Vert, Alpine White: 5spd swapped, sold.

                    '04 Toyota Sienna: 24V to 24V swap in progress

                    '05 Volvo V70R, 6spd.  200k
                    '85 Toyota LandCruiser: Lifted, gas hog. 205k
                    '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

                    1 Reply Last reply
                    0
                    • EarlE
                      EarlE
                      Earl
                      wrote on last edited by
                      #18

                      I might need to throw a set of injectors in my coupe then=) How much were these and what ones do you think would suits the m52?

                      museum sig 2earl.jpg

                      1 Reply Last reply
                      0

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