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  4. EV1 vs EV6 Injectors for OBD1 m50

EV1 vs EV6 Injectors for OBD1 m50

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  • B
    B
    B C
    wrote on last edited by
    #6

    Id run Bosch 0280155746

    Going by gut feel I would expect the 0.86lb/hr difference to be no big deal

    1 Reply Last reply
    0
    • jc43089J
      jc43089J
      jc43089
      wrote on last edited by
      #7

      0280155746 is a 19lb orange one.  calculates to 20.5 at 3.5 bar

      0280155771  is a 17lb @3bar. Kindof a cream color, my calculation is 18.36 at 3.5 bar

      Why would I use the 19lb?  I would rather not swap the FPR if I don't have to.

      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
        #8

        Sorry, my brain operates on 3 BAR.

        Carry on

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        0
        • 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

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            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

                    1 Reply Last reply
                    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

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