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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Shaving down meth bung (No recessed nozzle)



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      02-13-2013, 03:48 PM   #1
robc1976
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Shaving down meth bung (No recessed nozzle)

I want my meth nozzle to not be recessed like in the pics below....there are 2 places to shave down....wich is best? Thinking of just fileing it down with a dremel or hand file.

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      02-13-2013, 03:57 PM   #2
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either of those options is gonna be a finicky PITA. plus you'd have to chase the threads afterwards and hope they stay happy.

I'd almost either plug the hole, and weld a new bung the way you want it, or break the current weld, and seat the bung lower.
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      02-13-2013, 04:28 PM   #3
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Rob, you have way too much time on your hands. LOL Post the pics when you're finished.
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      02-13-2013, 04:37 PM   #4
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Quote:
Originally Posted by Wedge1967 View Post
Rob, you have way too much time on your hands. LOL Post the pics when you're finished.
roflmao!!!
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      02-13-2013, 05:17 PM   #5
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I'd keep it the way it is, it'll allow the spray pattern to develop without being disturbed by the flow.
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      02-13-2013, 08:22 PM   #6
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The nozzles should definitely be flushed....I had bungs that the nozzles didnt screw all the way down and I tested the spray pattern and indeed the atomization was hampered and I saw droplets instead of fine mist..Welded new low profile bungs and now its flushed and the atomization was perfect...I would not shave them but look for some bungs that are not as high as those you have on your charge pipe..I dont remember where I bought them from...Those things look like mountains, and the design and welds are not designed very well...
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      02-13-2013, 10:38 PM   #7
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Quote:
Originally Posted by cn555ic View Post
The nozzles should definitely be flushed....I had bungs that the nozzles didnt screw all the way down and I tested the spray pattern and indeed the atomization was hampered and I saw droplets instead of fine mist..Welded new low profile bungs and now its flushed and the atomization was perfect...I would not shave them but look for some bungs that are not as high as those you have on your charge pipe..I dont remember where I bought them from...Those things look like mountains, and the design and welds are not designed very well...
Totally agree!!
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      02-13-2013, 11:17 PM   #8
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I'd just cut the top of it off with a hack saw, I'd actually use a porta-band, and chase the threads with a tap. Shouldn't be difficult at all.
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