a friend an myself installed a VDO turbo boost guage today and it will only show about 8lbs of boost.the needle bounces when turbo is boosting,the needle "shakes" more than it bounces but stops at 7-8 lbs.it seems to rise better going half throttle than when going WOT.it builds up to the a point and doesnt go any further.my mods are vishnu stage 0 samco i/c hoses.if anyone has any tips that might help that would be great.the car runs the same so the turbo is still boosting ok.i am wondering if this gauge is good i only paid $40 for it or is it a piece of junk? thanks

 

make sure to zip tie or clamp all the vacuum hoses to the boost guage. You might have a vaccuum leak. Also, where did you install it? It might not be reading correctly if you put it in the wrong place. I placed mine on the BOV hose, 30 mm away from the bov connection. I just installed a "T" fitting.

 

thats what we did wrong,we put the t fitting on the hoses by the turbo,today we are going to put them by the wastegate.thanks for your help

 

if you put them on the wastegate line...you'll only read 7 psi


i'm gonna go snap a pic of mine jsut to show you what i mean.

 

fixed it,we tapped the line near the wastegate and hooked the t fitting up there and the needle went to 15lbs of boost.thanks for all of the input problem solved!!

 

close up

 

little bit farther away

 

btw, i know i'm missing one zip tie on that the bov side of the vaccuum line...fixed as of now

 

guess i was too late....i decided to do something else at the same time...doh!