sr20det power loss

[RealRHDSil80]

I have a redtop SR20DET with a TO4E turbo at 15psi. Now during normal driving(not boosting) it's fine. When I hit boost it doesn't pull as hard as it used to. When I hit 2nd the tires don't chirp as loud or as long. I know with different seasons and times of the day things change, but this just happened within a week or so and I've driven it at night and during the day. Now it still holds a vaccum and hits 15 psi like normal,but it just seems as if I had someone riding with me even when I'm driving alone. There's no blue smoke, or any smoke for that matter, as far as I can tell. I thinking of getting new plugs, oil change, and possibly replacing the coils. Any other thoughts?

[Nismo_RPS13]

could be a boost leak, even a small one can cause problems
what is your afr doing?

check your ecu for codes, mine was doing the same thing and i had a code 34 = knock sensor. i don't have knock so it means the sensor is bad or the wiring is bad. i fixed the wirng (corroded terminal on KS), reset the ecu and problem solved.

[R32Dragon]

Figure out that SAFC-II and see if you're running too rich. Your burn'n mad fuel, right?

[CSquared]

I'd put my money on a boost leak... check all your ic piping.

[RealRHDSil80]

I think I figured it out. I just checked by the wastegate and there's a small vacuum hose that worked it's way loose, or been blown off, conviently ziptied on ( ) I knew I never should have hit "high boost" on my profec-B (22psi ) haven't had time to fuck with it will update soon. thanks everyone for all your input.

[yunk_s14]

how is that sil80 and i might have to get someone to put the s14 on here i dont think any one wants my s14 man

[R32Dragon]

Who wouldnt, the damn thing is clean as hell and BLACK!

[RealRHDSil80]

UPDATE: Car runs great now. It was a vaccum line from the BOV to the wastegate. Also put in some NGK BKR7E spark plugs and royal purple oil and as for yunk_s14 and RX8Dragon lol

[R32Dragon]

^^^Your car runs like crap, you just got lucky during our race...