After installing my INJEN intake setup. i found something odd with my Boost. It would spike to 18ish and settle off at 16 where as before it used to hit 20 than settle at 19. So, I ripped Everything apart and started over again. used all new clamps. and every trick i could think of. Annndd Sur enough SAME THING. SOOOOOOOOO. Is there really that much of a drop when changing the piping and adding an intake? I mean seems alittle wierd to me. Currently runs JUST the stock ECU, no MBC no nothing i took out all my parts cause i had some dealer work to do!



im not looking for advice, Comments. All i wanna know is if this is common or not. Thats all

 

It could do to the size of the pipes.. The turbo has to push more air to fill them up. It's like if you get a bigger intercooler there is a bit of pressure drop.

 

Right, BUT 4 psi drop ? seems alittle high

 

Does it feel slower?

 

have you done a boost leak test

http://www.vfaq.com/mods/ICtester.html

 

Yup., went to home depot and made that stupid thing with the tube and got nowhere.

 

get a tune

 

I would call it stupid its only a tool .
no leaks ?
how high did you test it to ?
stock boost controler ? ----edit recheck to see if the stock bc lines are hooked back up right

 

Your MAF signals are most likely messed up because of the difference in piping diameter on the intake, thus causing erratic/low boost reading ...

 

To my knowledge there are no leaks. But im going to work test it out when i get back

 

+1
Your sig shows you use a utec, check your logs and look for inconsistant readings through your MAF (in Hz)

Edit* sorry didn't read the the rest of the post...