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Boost problems

LOL Scotty yer pic looks like you have a hose connected to the foam. Perfect angle strikes again like that hitch ball jack handle thang.
 


its the best internet pic i could fine. ive seen better. if my car wasn't 7 floors down and 100's of feet away, id have snapped a pic of my vac line and lack of foam lol
 
The last pic he posted everything looks right if the lines are going where I think they are.
Line is going from fpr to the vac tree, then it looks to go from the vac tree to the solenoid on the bbv then i cant see if he has that little one hooked up or not, then it goes to the vac cap on top of the blower.

OP if that was my car I would eliminate the stupid vac tree, block it off somehow, and route my vac lines like the 98+ cars
Like this
2010-04-04_183929_Untitled.jpg
 
if the fpr is on a hidden line, yeah it does look right now.

maybe the bbv is bad? does that lever at the bottom of it move when you rev the engine?
 
BLACKanREDgtp said:
yea I seen that I unhooked it now its running back to around 5.5 6 psi but the belts slipping bad u can hear it squeal at wot so pretty sure the belts slipping but I got it all back the way the diagram an the yellow motor looks I really appreciate it guys
Click to expand...
Replace the solenoid as I am sure that is faulty if you got boost with it unhooked.
 
BLACKanREDgtp said:
yea I seen that I unhooked it now its running back to around 5.5 6 psi but the belts slipping bad u can hear it squeal at wot so pretty sure the belts slipping but I got it all back the way the diagram an the yellow motor looks I really appreciate it guys
Click to expand...


you sneaked in right behind me, i never saw this lol glad to hear its making boost again.
 


ScottyDoggs said:
if the fpr is on a hidden line, yeah it does look right now.

maybe the bbv is bad? does that lever at the bottom of it move when you rev the engine?
Click to expand...

Yes Scotty it moves up when u fire the car over an when you Rev it it goes all the way down to the the lil set screw at the bottom the pops back up after you let off the throttle I dnt believe it's bad or it wouldn't be doing that would it? How much boost do you usually lose after installing a cam I kinda figured it'd b a lil bit since your holding that valves open just a bit longer
 
you have headers or a plog at least? 3.3 maybe to small for you with out a ic. ( or headers) most with a cam and running 93 gas with no ic just run a 3.4 and likely see around 8 to 10 psi.
 
Yea I got the front power log when I ordered the cam I called zzp to find out wat size I could run I was running the 3.4 an they told me wit all the other supportingredients mods I'd b ok running a 3.3 I've been scanning for KR an had had ne so far I've been saving up to get zzp headers
 
Well get that new belt and see if it stops slipping. Usually you will hit full boost then the boost will drop as the belt starts to slip.

Jeff
 
The Digital one shows full but the torque app an the mechanical gauge is only showing 5.0 to 5.5 psi I kinda figure the boost will go up hopefully quite a bit after the new belt gets here but idk I know the cam will drop it down sum was just curious about how much I should be looking for with the new belt an mods I really do appreciate all you guys help getting the whole vacuum situation worked out
 


That is pretty low for boost, I was making that on my headered ported blower bottom swapped car with a stock pulley.
 
BLACKanREDgtp said:
The Digital one shows full but the torque app an the mechanical gauge is only showing 5.0 to 5.5 psi I kinda figure the boost will go up hopefully quite a bit after the new belt gets here but idk I know the cam will drop it down sum was just curious about how much I should be looking for with the new belt an mods I really do appreciate all you guys help getting the whole vacuum situation worked out
Click to expand...

So you have a digital gauge, a mechanical, and the torque app all measuring boost. I am guessing that the mechanical and map sensor are Teed into the same point. Where is your digital gauge tied into? And what is full boost on that gauge?

Jeff
 


Man GM is really inconsistent on what they do. I have now seen a GP with a bar graph boost gauge, a boost gauge (somewhere on this site), and no boost gauge at all.
 
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