What boost Stage 2 cobb ap?

[18psiWhiteMS3]

when i instal my cobb intake, turboback and cobb ap with hks BPV what kinda boost am i going to be seeing? That is with the cobb ap stage 2 tune

 

[mo08ms3]

The map notes issued by Cobb for the Stage 2+SF target boost at 18.2 psi tapering down to 15.2psi by the 6700 rpm redline +/- 1.5psi. http://www.accessecu.com/accessport/mazda/AP-MAZ-02/MAZD_US_MS3_07C/Map Notes/Stage2+SF 91 v102.pdf

 

[18psiWhiteMS3]

very nice moo. thanks alot

 

[mo08ms3]

No problem. Looking at it again, that was for the v102 maps. It's probably the same or close for the v103 beta maps that are out, but I'm not positive.

 

[18psiWhiteMS3]

is 19 20 psi bad for our turbos?? motors??

 

[Speed3Rookie]

is 19 20 psi bad for our turbos?? motors??

Depends if you are referring to actually holding this amount of boost throught the rpm band. If this is the case the answer is no...not good.
Spiking 19/20 ad holding 18lbs is ok.
Make sure you check fp, kr, and afr.

 

[18psiWhiteMS3]

what is the A/F i wanna be in. You know... the safe range

 

[Speed3Rookie]

On most boosted applications the conservative range is 11.5-11.8.
Ideal is ~12.1-12.3
I believe Christain has the ap set up for ~12.5 on some tunes.
I have read that the DI engines can run a tad leaner afr than conventional boosted apps.

 

[18psiWhiteMS3]

thanks again