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  1. #1
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    2 out of 2 members liked this post. Yes Reputation No

    Meth bung shaving for flush nozzle placement DIY

    Decided to do a small DIY for this since some CP have the meth bung to high and needed to b e shave so the meth nozzle can be flush with inner pipe. This DIY is done on a ER Charge pipe.

    This is discussed in detail here:

    http://www.bimmerboost.com/showthrea...-(vid-amp-pics)

    Note: Not responsible for any damage to you or your car, this worked on my car so will work on yours.

    Suggestions:

    I suggest using safety glasses and blowing out charge pipe with leaf blower or compressed air.

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    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

  2. #2
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    What advantage do you expect to have with a flush nozzle vs. a recessed nozzle?

  3. #3
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    Better spray pattern, better optimization and as little pooling as possible.
    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

  4. #4
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    Nice...Little OCD there my friend! lol Nice work
    Click here to enlarge

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    Click here to enlarge Originally Posted by Cn555ic Click here to enlarge
    Nice...Little OCD there my friend! lol Nice work
    mostly because of you lol!!!Click here to enlarge
    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

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    Click here to enlarge Originally Posted by robc1976 Click here to enlarge
    mostly because of you lol!!!Click here to enlarge
    I guess you were following my install threads! lol
    Click here to enlarge

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    Click here to enlarge Originally Posted by Cn555ic Click here to enlarge
    I guess you were following my install threads! lol
    you better believe it....saw a post where yours was flush and had to have it that way lol!!
    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

  8. #8
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    Click here to enlarge Originally Posted by Cn555ic Click here to enlarge
    Nice...Little OCD there my friend! lol Nice work
    lol, you calling someone OCD? Click here to enlarge

  9. #9
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    Click here to enlarge Originally Posted by robc1976 Click here to enlarge
    Better spray pattern, better optimization and as little pooling as possible.
    I don't mean to belittle your efforts, but if the spray cone isn't hitting the sides of the recessed area I can't see where this would improve (or degrade) anything. As long as the meth nozzle is far enough upstream from the intake manifold, the meth should mix essentially the same way in the far-field, recessed or not.

    This isn't an easy thing to predict though.

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    Click here to enlarge Originally Posted by trufus Click here to enlarge
    I don't mean to belittle your efforts, but if the spray cone isn't hitting the sides of the recessed area I can't see where this would improve (or degrade) anything. As long as the meth nozzle is far enough upstream from the intake manifold, the meth should mix essentially the same way in the far-field, recessed or not.

    This isn't an easy thing to predict though.
    It is such a small effort to do this, but the air is going around the outside of the edge of the pipe drawing the meth into the recess wich can hurt optimization/pattern and cause a bit of pooling. I am not saying this is 100% true (we need a clear CP lol!!). But terry burger and many others state that a recessed nozzle indeed does hurt optimization and causes pooling and figured why not. I think this would be more evident with larger single nozzle setups to.
    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

  11. #11
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    Click here to enlarge Originally Posted by robc1976 Click here to enlarge
    It is such a small effort to do this, but the air is going around the outside of the edge of the pipe drawing the meth into the recess wich can hurt optimization/pattern and cause a bit of pooling. I am not saying this is 100% true (we need a clear CP lol!!). But terry burger and many others state that a recessed nozzle indeed does hurt optimization and causes pooling and figured why not. I think this would be more evident with larger single nozzle setups to.
    I am having a hard time believing that any meth would recirculate in the small recessed area. Even if it did, your "flush" mounting hasn't solved the problem, you'd have to plug up what is left of the hole to prevent any pressure deltas on the charge pipe wall. Maybe that's a good next step. Well that and maybe one of us should quit speculating and get some real data Click here to enlarge

    Any idea what kind of speeds the charge air is doing?

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    Click here to enlarge Originally Posted by trufus Click here to enlarge
    I am having a hard time believing that any meth would recirculate in the small recessed area. Even if it did, your "flush" mounting hasn't solved the problem, you'd have to plug up what is left of the hole to prevent any pressure deltas on the charge pipe wall. Maybe that's a good next step. Well that and maybe one of us should quit speculating and get some real data Click here to enlarge

    Any idea what kind of speeds the charge air is doing?
    I would love to get some real data on this, just don't see a way to do it lol!! I think you are correct on that area, that is why a lot of CP's (BMS) for instance has the nozzle flush with the pipe but with no recess around the nozzle.
    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

  13. #13
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    When it comes to performance tuning, OCD gives you an advantage in the end Click here to enlarge definitely better to keep the nozzle flush with the pipe or even ever so slightly protruding inwards.
    Click here to enlarge

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    Yes Reputation No
    Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
    When it comes to performance tuning, OCD gives you an advantage in the end Click here to enlarge definitely better to keep the nozzle flush with the pipe or even ever so slightly protruding inwards.
    The only advantage I'm seeing is less turbulent charge air when meth isn't flowing...?

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
    slightly protruding inwards.
    Hmmm, how 'bout recessed ;-)

    Neil

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    Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
    When it comes to performance tuning, OCD gives you an advantage in the end Click here to enlarge definitely better to keep the nozzle flush with the pipe or even ever so slightly protruding inwards.
    That it does!! Every detail counts Click here to enlarge
    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

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    Click here to enlarge Originally Posted by MDORPHN Click here to enlarge
    Hmmm, how 'bout recessed ;-)

    Neil
    he said "ever so lightly" lol!! My nozzle is recessed so it is "ever so slightly". Click here to enlargeBut all honestly my nozzle was way to recessed IMHO.
    Last edited by robc1976; 02-17-2013 at 10:03 PM.
    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

  18. #18
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    Another great DIY... feel spoiled.

  19. #19
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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Another great DIY... feel spoiled.
    I appreciate that, really do. I have another one I am posting tonight.
    JB4 G5, 455 LPFP, HFS-4 meth kit, BMS OCC, VM 6466 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295

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