Jpipe bung

[Anthony Yacullo]

I have a small 16g and need to put on my hallman mbc, my Jpipe has no nipple. So can I just drill a hole and tap it for a fitting? and should I take it off to do so because of the metal shavings?


Thanks

 

[Priority DSM]

Yes

 

[92AWDHX40]

Yes just tap it.

 

[Anthony Yacullo]

Yes just tap it.

But do I need to take it off first? or can I tap it with it attached.

 

[daplatano91]

Take it off first

 

[Priority DSM]

take it off. When dealing with metal shavings you want to keep them out of your engine. Spend the 5 extra minutes. Why even risk it on something so simple.

"Why even risk it" is usually the answer to most of my own common sense questions.

Good luck.

 

[92AWDHX40]

Take it off easier to work with.

 

[pauleyman]

Ill get slammed for this but I dont care. I use the bov line and teed into the line. Ive ran every dsm ive owned this way for the last 23 years and 250k collective miles.

 

[91AwdBigRed]

Or you can use a 1/8'' to 1/2'' step drill, drill, and tap set. I bought mine at ace hardware store. Buy a 1/8'' NPT vacuum fitting. Drill and tap j pipe. Then thread fitting into hole. I used loctite blue threadlocker on threads for a good seal. It helps to put pipe in a vise so you can drill straight.

 

[briansmith]

• I've used nipples on top of the throttle body no I'll effects yet

 

[nathan_spindler55]

having the nipple on the j pipe allows your boost controller to work the best, you want your vacuum lines as short as possible for the controller.

 

[pauleyman]

having the nipple on the j pipe allows your boost controller to work the best, you want your vacuum lines as short as possible for the controller

I disagree. Ive used the pressure source from multiple locations and noticed no difference. I used to manufacture the contollers for FFWD and we included a T to tap that line.

 

[nathan_spindler55]

hey if it works it works right? i just keep mine as short as possible.

 

[Maes]

I use nipple on intake manifold