Okay so I just installed a boost gauge and it doesnt seem to be working. I know the trubo is building boost. I had a predrilled and tapped hole in the intake tube coming out of the turbo, so i ran the line out of that spot. There doesnt appear to be any leaks in the conections, so my question is what could be wrong?

 

think what you saying you have it tap up buy the turbo it should be tap on top flat top of the upper intake

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Well if you got boost gauge from glowshift check back of the make sure the hole in fitting is open up i have seen plug on no hole in it and the fitting that goes also in intake plug

 

the gauge is from EQUUS. are you saying the hole that was already tapped in the top of the intake tube by the turbo is not the right hole. I didint put this hole there it is an existing hole in the intake tube.

 

you don't think get boost in till get in the intake opening it self

 

in the your first response to my question you said it should be in the top flat of the upper intake.....is that under the cover on the top of the motor? i know this is making me sound dumb by asking this butt i have to. I have built tons and tons of small block chevys and have never heard a reference to the upper intake.

 

yes up under 6.5 cover

here a pic to give idea you see the fitting near the back with the tubing

 

okayb thank you that is very helpful

 

now you won't see boost just sitting there you have take for ride these are not big boost if you see psi from dead stop and just floor it and watch the gauge see what goes to

 

if i am seeing boost when i am just sitting and it spikes when i floor it what is that saying. and when i relocate the line for the gauge if there isnt already a hole there will i have to take the intake off when i drill and tap a hole?

 

yes you wil have take off and tap it it only 6 bolts that holes intake 1 bolt the hole the turbo to intake tube and one clamp

if you are just sitting there and spikes it and see gauge move that boost

if you just take off from dead stop and put to floor that gauge should move and when you hit 2000 to 2500 rpms it should be 8psi maybe hit 10psi and now that if have clean air filter and no exhaust leaks