recent loss of power

[jmhMS6]

Hi guys/gals, looking for help. I've recently been noticing that my MS6 does not seem as fast as when I first got it and even the mazda mechanic I took it to for the last oil change mentioned that it did not seem as fast. I have a cold air intake and thought it might be a dirty filter, so I have cleaned it with no luck. Searching through posts here, I came the the realization that I have not heard the blow off valve in a while. I typically drive rather normally and don't push it often, although I have tried some hard accelerations and I did not hear the BOV. I used to hear it all the time.
Should I hear the bov in normal driving/fast but not hard acceleration? What are some things I should look for to diagnose? The car boosts and when I push it, I see it hold about 15psi (dashhawk) when accelerating hard in 3rd.

edit - Given I have a dashhawk, anything in particular I should be recording in a diagnostic mode to try and troubleshoot?

Thanks for the help

 

[Garry68]

Common reasons for insufficient power or low boost pressure are;

Dirty air filter system
Suction and pressure line distorted or leaking
Excessive flow resistance in exhaust system/leakage upstream of turbine
Fuel system/injection feed system defective or incorrectly adjusted
Valve guide, piston rings, engine or cylinder liners worn/increased blow-by
Dirty compressor or charge air cooler
Boost pressure control valve does not close
Pipe to boost pressure control valve defective
Turbocharger bearing damage
Foreign body damage on compressor or turbine
Engine intake manifold cracked/missing or loose gaskets
Turbine housing/boost pressure control valve damaged
Insufficient oil supply to turbocharger

I guess you can use a process of elimination or maybe your dash hawk can help you out.

 

[FL_MS6]

were you ever able to find out the problem JMH??

 

[Cue]

Do you run DashHawk quarter miles. Maybe your jsut getting used to the speed.

I run QM runs on the same stretch every so often to make sure my car is still running the same.

 

[LV Tunerz]

yeahi thought there was a loss of power but i just got used to the power LOL