So i did an up-pipe install today... i unbolted the intercooler, the air filter, then the turbo... i initially attempted to pull the up-pipe through the top of the engine bay... but i couldn't get the turbo off completely, so therefore i got frustrated and decided to try pulling out from the bottom of the motor... so i followed the instructions from scoobymods by perrin and ended up with it in and working... i also did a downpipe and cbe install and then a cobb ap stage II install... i got it all together and started the car... it runs and idles fine... i start to head down the road and there is a fluttering noise as i give it gas... it sounds like a card in the rim of a bike to make it sound cooler... but this isn't a pleasant sound... it doesn't make the noise when at idle or low RPM's or when i push the gas pedal 1/8 of the way in keeping it at a steady rpm... it does when in accel or decel... and is bad at lower rpm's when acceling or deceling... i also noticed that when i went for a drive before i uploaded my cobb it wasn't pulling as hard... so i took it back put it to stage II and i was pushing no more than 5.1psi... whats wrong?

 

To me it sounds like a post turbo leak. generally a preturbo leak will scream and a post turbo leak will flutter. however I used to have a very small uppipe leak and it ticked with I was building boost(but I would still hit target boost just fine).when I had a large uppipe leak it would scream. I've have a downpipe leak before also and it make a fluttering sound.
a sound clip would be great.

 

will try...

 

i think ur restrictor pill is on the wrong side of the T

 

hmm is you BOV on tight? how are the gaskets? Maybe a Vaccum Leak?

 

take the BOV off bro...

 

Im going to agree with DemonPossessed that you have a massive leak. Make sure all the surfaces are mated up. Check where the up-pipe connects to the manifold. Mine didn't want to mate up there correctly when i put it in.

He probably means BPV.

 

my blow off valve is not on tight because one of the bolts roke and is inside my intercooler...then also ryan i tried that restrictor pill and i got absolutely no boost afterwards...

 

Wastegate flutter??

 

um, yeah, you're gonna want to go ahead and get that fixed

 

well i fixed my boost problem... i totally redid the up-pipe and put it back together... i also fixed my intercooler... and now i get full boos... however i do feel like it might be a little laggy and i still have this nasty flutter from what sounds like within the turbo... IDK..

 

is it bad to drive around with an uppipe leak? is it possible to do permanent damage to the engine/turbo? i just got a huge leak and am driving mine in tomorrow should i tow it?

 

a bad post-turbo leak will cause loss of low end torque

 

When you did the initial install, did you put in new gaskets?

 

Alright... im back with this same ?... cause i recently hit a deer and it did enough damage for me to be out of commision for a while... Yes i installed new gaskets and everything runs just fine... it is fluttering the worst when i am off the gas coasting in at high RPM's... i don't here the flutter when on the gas... only when off and when i push in the clutch and the motor starts to drop to an idle i here it the worst... the worst place to here it is behind me... all my gaskets are good and i have no flippin clue as to what is causing it....