boost conection?
 

hey guys, i am putting a boost gauge on my truck and i plan to tap a hole into my intake horn but i dont know what size to make the hole? i have my stock boost elbow from my turbo and i plan to use that to feed boost pressure to my gauge.Now, i am in one of those situations where i needed this to be done yeaterday so its not like i can order the right fitting unless that boost elbow wount work, then i have no choise so if you could help me out with the drill size that would be great.:tu:

NBoost bolt. No drilling just take a plenum bolt out and install in its place. Much cleaner looking install .
Bit size and tap for your elbow would be size r, size q or 11/32 and 1/8th npt tap
But plumbing it this way can cause boost leaks at higher boost pressures
Sent from my DROID BIONIC using Tapatalk

why not spice into the waistgate hose on the bottom of the turbo? did mine there had no issues

yea i think i mights just use the waistgate hose. i just hope i have enough vacume line to reach:tu:

I made my own boost bolt drilled out a bolt pressed in a barbed fitting works fine,but I forgot where I got the fitting from, this is not hard to make