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Vacuum Distribution Block Questions

347 Views 12 Replies 6 Participants Last post by  ChubbsWrld
Whats up everyone? I am getting close to finishing the EG build. Trying to get the last wiring, routing and details done. One of these details is a vacuum distribution block. I sourced the blocks vacuum from a large port on the Skunk manifold. The turbo I am using does not have a port in the housing so my initial thought was to source its reference from the distribution block. My concern is that the blocks source is on the intake manifold, after the throttle body. So when the throttle is closed will my distribution block still give an accurate reading to things like my wastegate, boost gauge, etc. I guess in a more direct way to ask this is if it is okay to get the vacuum/boost for these things from the intake manifold or does it need to be from the intercooler piping prior to the throttle body?
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No, it doesn't.
Grab your favorite size pilot drill, a letter "Q"-size Drill bit, and a 1/8 NPT tap.
Choose a location that makes sense and doesn't interfere with anything, and make your hole.
Drilling/tapping Aluminum is very easy, no doubt you can do it.
Obviously, make sure chips do not go into the Compressor housing.
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It is apparent you do care about good boost control.
Keeping all those hoses as short as possible (by Tapping a source @ the Comp. housing) will only help that characteristic.
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