New stillen sc kit no boost.

vgl08

Hi guys,

I've been reading these forums for a while but haven't really posted much.

Just installed the stillen sc kit on my 2013 Z manual base+sports package. The install went pretty well and I didn't have any major issues. However, i don't think I am making much(if any) boost. I don't think it is a serious problem since the car seems to be running fine. No crazy noises, starts up right away and idles/drives without indicating that anything is dangerously out of whack.. I just didn't notice much of a difference than pre SC. I mean it's a bit peppier and pulls harder... But no where near what I would have thought. I know people complain about the stock stillen tune but even if it was just a 50hp gain I think I would have immediately felt the difference . The only engine mods before were gen 3 intakes and topspeed cat back. My guess is that there is some sort of vacuum/boost leak.

The only real diagnostic tool I have is the torque app for android that connects to the OBDII port via Bluetooth. It's not a wide band AFR gauge, but it is not running lean. It can also read manifold pressure and can "calculate" boost pressure from this. I know this isn't an accurate reading of boost pressure, but it was dead on for my GTI and brother's STi. This was giving me a reading of 1.2 psi..... Which seems like it would make sense with the slight performance increase I noticed. Makes me think the bypass valve isn't operating correctly/opening too early.

Has anyone had any issues like this?


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