Vishnu Charge Pipe Issue

Chris_Rav · 10-13-2014, 04:10 PM

Hey, so I finally got around to installing my Vishnu Charge pipe last night after picking it up "used" from another member. This morning I installed the JB4 and went to do some high boost pulls to make sure the pipe didn't pop off completely. All was well until I got home and stopped in front of my house, with my car in neutral the idle dropped and the car died.. I thought this was very strange so I started it up again and it seemed to be okay, I reved the engine to 2k rpms and as soon as I let off the gas the rpms dropped below 500 and the engine died again. So I opened up the engine bay and I see a meth bung (with blocking bolt) completely missing from my charge pipe. I guess the 3-4 pulls I did made the bung completely pop off so now I have a hole in my charge pipe. I will attempt to attach a picture but can anyone help me out here? I can't really tell if the hole is threaded but does anyone know what size bolt this should be ? Idk what to do with the car. I might throw some tape over the hole until I can find a bolt but I leave for school tomorrow and don't want my car to die on me on the 2 hour drive, especially if I hit traffic. Is it dangerous for the engine to run the car without the bolt in there? It seemed as though it was still building some good boost on Map 1 of my jb4 and it only seemed to be dying off up over ~5700rpms. Please any advice would be greatly appreciated!

Also has anyone else ever seen 3 bungs on a charge pipe ? I'm confused as to why there are 3 bolts / bungs. Didn't think much of it as im not planning on running meth in the near future but something seems off now

Schmidty335i · 10-13-2014, 04:45 PM

i dont think if that were my car i would want to drive it around like that. if i were you just for a temp fix. go buy a coupler from autozone that is the same size as your pipe then pull out the other meth bung put the coupler over both holes and clamp down. shouldnt loose any boost. but i would only use that until you can get a new bung welded in or a new pipe.

hope you get it figured out man.

335NJ · 10-13-2014, 04:53 PM

I would get that hole plugged with any threaded plug ASAP to eliminate a boost leak. I'm just trying to figure out how the hell it popped out like that unless it was barely in to begin with. 3 meth bungs is a bit excessive, 2 is even a bit much depending on nozzle size.

Make sure you tap in the threads before just cranking a plug so it seals nicely, and use JB weld or something on the threads to ensure it doesn't have any leak to it, obviously remove the pipe prior to doing this. Keep in mind if you use JB weld you'll most likely never get that plug out.

I've never seen a Vishnu CP in person, but that bung looks homemade as opposed to the plugged welded ones you see on other brands.

Dan_Q · 10-13-2014, 04:59 PM

Why don't you just change back to the stock charge pipe and then you can figure out what is going on with that one without worry of having the car die on you.

I also don't know what that particular charge pipe is supposed to look like but the bungs look homemade. Most have a bung welded in place that is threaded. That just looks like a hole drilled through the wall of the pipe. Good luck.

Chris_Rav · 10-13-2014, 05:13 PM

Quote:

Originally Posted by Schmidty335i

i dont think if that were my car i would want to drive it around like that. if i were you just for a temp fix. go buy a coupler from autozone that is the same size as your pipe then pull out the other meth bung put the coupler over both holes and clamp down. shouldnt loose any boost. but i would only use that until you can get a new bung welded in or a new pipe.

hope you get it figured out man.

Do you think you could send me a link / picture of the type of coupler you are talking about?

Chris_Rav · 10-13-2014, 05:15 PM

Quote:

Originally Posted by Dan_Q

Why don't you just change back to the stock charge pipe and then you can figure out what is going on with that one without worry of having the car die on you.

I also don't know what that particular charge pipe is supposed to look like but the bungs look homemade. Most have a bung welded in place that is threaded. That just looks like a hole drilled through the wall of the pipe. Good luck.

The stock chargepipe got trashed when trying to remove it, broke right at the weld like everyone fears, couldn't believe how easily it broke actually.

Chris_Rav · 10-13-2014, 05:22 PM

Quote:

Originally Posted by 335NJ

I would get that hole plugged with any threaded plug ASAP to eliminate a boost leak. I'm just trying to figure out how the hell it popped out like that unless it was barely in to begin with. 3 meth bungs is a bit excessive, 2 is even a bit much depending on nozzle size.

Make sure you tap in the threads before just cranking a plug so it seals nicely, and use JB weld or something on the threads to ensure it doesn't have any leak to it, obviously remove the pipe prior to doing this. Keep in mind if you use JB weld you'll most likely never get that plug out.

I've never seen a Vishnu CP in person, but that bung looks homemade as opposed to the plugged welded ones you see on other brands.

I believe that the Vishnu meth bungs are just threaded on because on their website they sell the bungs seperatley and say all that is needed to DIY is a drill and tap.. I'm just having difficulty finding a bolt to fit it.

Schmidty335i · 10-13-2014, 05:28 PM

Quote:

Originally Posted by Chris_Rav

Do you think you could send me a link / picture of the type of coupler you are talking about?

something like this should work.

http://www.autozone.com/autozone/acc...er=862378_0_0_

just make sure it is the same diamater as your charge pipe. which is probably 3". but double check and like i said i wouldnt use this as a permanent fix but it should work for awhile until you figure out something.

Chris_Rav · 10-13-2014, 06:07 PM

Quote:

Originally Posted by Schmidty335i

something like this should work.

http://www.autozone.com/autozone/acc...er=862378_0_0_

just make sure it is the same diamater as your charge pipe. which is probably 3". but double check and like i said i wouldnt use this as a permanent fix but it should work for awhile until you figure out something.

that seems like a pretty good idea, but the other meth bung that is horizontal to it might get in the way of that coupler. unless i took the other bung out also?

Schmidty335i · 10-13-2014, 06:15 PM

Quote:

Originally Posted by Chris_Rav

that seems like a pretty good idea, but the other meth bung that is horizontal to it might get in the way of that coupler. unless i took the other bung out also?

yeah i would take the other one out and put the coupler on until you can figure out how to get it fixed for good. besides looking kinda wierd i bet you wont have any problems even if you left it like that for awhile. should hold good as long as you tighten the clamps down good.

Chris_Rav · 10-13-2014, 06:33 PM

Quote:

Originally Posted by Schmidty335i

yeah i would take the other one out and put the coupler on until you can figure out how to get it fixed for good. besides looking kinda wierd i bet you wont have any problems even if you left it like that for awhile. should hold good as long as you tighten the clamps down good.

I might try that if an autozone has it near me. I'm just afraid to take the other one out and end up with 2 holes instead of one lol

Schmidty335i · 10-13-2014, 06:44 PM

Quote:

Originally Posted by Chris_Rav

I might try that if an autozone has it near me. I'm just afraid to take the other one out and end up with 2 holes instead of one lol

honestly from the pictures they dont look welded they look like they are just screwed in. I bet you anything that the last person who owned it did it themselves I really doubt that they would come from Vishnu like that. I would take it to a welding shop and see if they could weld you in some permanent bungs and you would be good to go! At this point also if you have one hole what would two hurt?

don’t really think this will be a big issue though if you can just get something welded in.

just a question though do the other ones look like they are screwed in? if you look inside the pipe there isn’t a nut or anything holding them in is there?

Chris_Rav · 10-13-2014, 06:48 PM

Quote:

Originally Posted by Schmidty335i

honestly from the pictures they dont look welded they look like they are just screwed in. I bet you anything that the last person who owned it did it themselves I really doubt that they would come from Vishnu like that. I would take it to a welding shop and see if they could weld you in some permanent bungs and you would be good to go! At this point also if you have one hole what would two hurt?

don’t really think this will be a big issue though if you can just get something welded in.

just a question though do the other ones look like they are screwed in? if you look inside the pipe there isn’t a nut or anything holding them in is there?

From what I remember they all appeared to be screwed in, if you take a look at vishnu's site you can see on the last picture that the meth bungs that they sell have threads at the bottom which are supposed to be tapped into the pipe.

http://www.procedetuning.com/BMW/n55...ipe/cpipe.html

Schmidty335i · 10-13-2014, 06:56 PM

Quote:

Originally Posted by Chris_Rav

From what I remember they all appeared to be screwed in, if you take a look at vishnu's site you can see on the last picture that the meth bungs that they sell have threads at the bottom which are supposed to be tapped into the pipe.

http://www.procedetuning.com/BMW/n55...ipe/cpipe.html

huh, i stand corrected... iam kinda suprised they dont at least have a spot weld on them to hold them in. but maybe they make them so you can pull them out and replace them. iam no charge pipe expert by any means so i wont question their design, im sure there is a reason for it. well good news is if they do just screw in you could pull the other one out for now, order another one and then install them both again. maybe put a little loctite on the treads to keep it from coming out again.

Chris_Rav · 10-13-2014, 07:05 PM

Quote:

Originally Posted by Schmidty335i

huh, i stand corrected... iam kinda suprised they dont at least have a spot weld on them to hold them in. but maybe they make them so you can pull them out and replace them. iam no charge pipe expert by any means so i wont question their design, im sure there is a reason for it. well good news is if they do just screw in you could pull the other one out for now, order another one and then install them both again. maybe put a little loctite on the treads to keep it from coming out again.

I'm surprised also, but i never game it much thought after today, You would think that the boost would be pulling in on the meth bungs not trying to push them out but that's just me lol

Schmidty335i · 10-13-2014, 08:24 PM

Quote:

Originally Posted by Chris_Rav

I'm surprised also, but i never game it much thought after today, You would think that the boost would be pulling in on the meth bungs not trying to push them out but that's just me lol

no acutally boost is doing the exact opposite it is creating positive pressure then when your piston goes down it jams all that compressed air into the cylinder. basically your engine is sucking air and your turbo is blasting a bunch of extra air into the cyclinder. the more psi you have the more air your pushing into your engine. all that pressure is the reason you get couplers poping off if you dont clamp them down enough. and could be the reason you lost one bungs. maybe it was loose and you built up enough pressure to blow it out. if you are intrested in exactly how a FI engine works i would suggest "how stuff works" it actually skims over it pretty well and keeps it in simple easy to understand terms.

mkPOTO · 10-13-2014, 10:16 PM

you can try a rubber freeze plug, that should help you out a bit

Chris_Rav · 10-13-2014, 11:05 PM

Quote:

Originally Posted by mkPOTO

you can try a rubber freeze plug, that should help you out a bit

Do you think it could with stand the boost?

mkPOTO · 10-14-2014, 08:28 AM

Quote:

Originally Posted by Chris_Rav

Do you think it could with stand the boost?

its worth a try, they are used for older model cars and coolant and heaters, so if they can withstand that then I think you will be fine.

Chris_Rav · 10-14-2014, 10:26 AM

I threw duct tape over the hole just so I could make it to work today and everything seemed okay, well it definitely wasn't running like normal but the only time I stalled was when reversing. I could tell that the idle was slightly lower then normal but I think it is drive able in this condition

tke344 · 10-14-2014, 11:22 AM

you probably need a 1/8 NPT bung and some JB weld.

I'd measure the hold but something like this would probably work.. plus a 1/8 NPT plug

forgot the link. http://www.ebay.com/itm/Summit-Racin...-/191341309829

Jeff@TopGearSolutions · 10-14-2014, 11:31 AM

I don't know if it's 1/8th because they are aquamist bungs which are not 1/8th. But you should be able to go to home depot and get a brass plug that should fit the orifice.

I got a brass plug at home depot back in the day when I plugged up a standard 1/8th bung hole.

10-13-2014, 04:10 PM	#1
Chris_Rav Lieutenant 64 Rep 548 Posts Drives: 2011 e92 LCI 335i xdrive 6MT Join Date: Oct 2013 Location: NJ iTrader: (9)	Vishnu Charge Pipe Issue - Need Help! Hey, so I finally got around to installing my Vishnu Charge pipe last night after picking it up "used" from another member. This morning I installed the JB4 and went to do some high boost pulls to make sure the pipe didn't pop off completely. All was well until I got home and stopped in front of my house, with my car in neutral the idle dropped and the car died.. I thought this was very strange so I started it up again and it seemed to be okay, I reved the engine to 2k rpms and as soon as I let off the gas the rpms dropped below 500 and the engine died again. So I opened up the engine bay and I see a meth bung (with blocking bolt) completely missing from my charge pipe. I guess the 3-4 pulls I did made the bung completely pop off so now I have a hole in my charge pipe. I will attempt to attach a picture but can anyone help me out here? I can't really tell if the hole is threaded but does anyone know what size bolt this should be ? Idk what to do with the car. I might throw some tape over the hole until I can find a bolt but I leave for school tomorrow and don't want my car to die on me on the 2 hour drive, especially if I hit traffic. Is it dangerous for the engine to run the car without the bolt in there? It seemed as though it was still building some good boost on Map 1 of my jb4 and it only seemed to be dying off up over ~5700rpms. Please any advice would be greatly appreciated! Also has anyone else ever seen 3 bungs on a charge pipe ? I'm confused as to why there are 3 bolts / bungs. Didn't think much of it as im not planning on running meth in the near future but something seems off now Attached Images __________________ 2011 AW / CR 6MT 335i Xdrive Coupe \| JB4 Stage 2 \| BMS Intake \| Performance Spoiler \| Powder Coated Red Linea Corse 818 \| Blacked Out Roof \| Wrapped Interior Trim
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10-13-2014, 04:45 PM	#2
Schmidty335i Lieutenant 42 Rep 412 Posts Drives: E92 335i PS2 turbo FBO JB4 Join Date: Jun 2014 Location: San Diego iTrader: (0)	i dont think if that were my car i would want to drive it around like that. if i were you just for a temp fix. go buy a coupler from autozone that is the same size as your pipe then pull out the other meth bung put the coupler over both holes and clamp down. shouldnt loose any boost. but i would only use that until you can get a new bung welded in or a new pipe. hope you get it figured out man.
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10-13-2014, 04:53 PM	#3
335NJ Colonel 533 Rep 2,872 Posts Drives: 2008 335i 6MT E90 Join Date: Feb 2014 Location: NJ/Philadelphia Suburbs iTrader: (1)	I would get that hole plugged with any threaded plug ASAP to eliminate a boost leak. I'm just trying to figure out how the hell it popped out like that unless it was barely in to begin with. 3 meth bungs is a bit excessive, 2 is even a bit much depending on nozzle size. Make sure you tap in the threads before just cranking a plug so it seals nicely, and use JB weld or something on the threads to ensure it doesn't have any leak to it, obviously remove the pipe prior to doing this. Keep in mind if you use JB weld you'll most likely never get that plug out. I've never seen a Vishnu CP in person, but that bung looks homemade as opposed to the plugged welded ones you see on other brands. __________________ *BSM E90 6MT*-JB4 G5 ISO-BMS DCI-Golf-Tee Mod-Hankook S1N2 Non-RFT-ER Chargepipe/TiAL BOV-E40 blend-VRSF V2's-M3 CDV-MHD/JB4 FLASH-VRSF 5" STEPPED FMIC
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10-13-2014, 04:59 PM	#4
Dan_Q Second Lieutenant 117 Rep 241 Posts Drives: F80 M3, F15 X5 50i Join Date: Feb 2011 Location: Colorado Front Range iTrader: (5) Garage List 2018 M3 [9.50] 2015 X5 xDrive50i [10.00]	Why don't you just change back to the stock charge pipe and then you can figure out what is going on with that one without worry of having the car die on you. I also don't know what that particular charge pipe is supposed to look like but the bungs look homemade. Most have a bung welded in place that is threaded. That just looks like a hole drilled through the wall of the pipe. Good luck.
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10-13-2014, 10:16 PM	#17
mkPOTO Mr. Nice Says Hello 635 Rep 16,662 Posts Drives: BMW M3 \| X5 xdrive 35i MSport Join Date: Dec 2008 Location: USA iTrader: (25) Garage List 2002 Lexus GS300 [0.00] 2008 BMW E92 M3 [5.58]	you can try a rubber freeze plug, that should help you out a bit
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10-14-2014, 10:26 AM	#20
Chris_Rav Lieutenant 64 Rep 548 Posts Drives: 2011 e92 LCI 335i xdrive 6MT Join Date: Oct 2013 Location: NJ iTrader: (9)	I threw duct tape over the hole just so I could make it to work today and everything seemed okay, well it definitely wasn't running like normal but the only time I stalled was when reversing. I could tell that the idle was slightly lower then normal but I think it is drive able in this condition __________________ 2011 AW / CR 6MT 335i Xdrive Coupe \| JB4 Stage 2 \| BMS Intake \| Performance Spoiler \| Powder Coated Red Linea Corse 818 \| Blacked Out Roof \| Wrapped Interior Trim
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10-14-2014, 11:22 AM	#21
tke344 Lieutenant 38 Rep 463 Posts Drives: f15 X5 50i Join Date: Jan 2009 Location: Charlotte iTrader: (1)	you probably need a 1/8 NPT bung and some JB weld. I'd measure the hold but something like this would probably work.. plus a 1/8 NPT plug forgot the link. http://www.ebay.com/itm/Summit-Racin...-/191341309829 Last edited by tke344; 10-14-2014 at 11:29 AM..
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10-14-2014, 11:31 AM	#22
Jeff@TopGearSolutions 3441 Rep 79,212 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	I don't know if it's 1/8th because they are aquamist bungs which are not 1/8th. But you should be able to go to home depot and get a brass plug that should fit the orifice. I got a brass plug at home depot back in the day when I plugged up a standard 1/8th bung hole.
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