I don't know, mine still has duratec written all over it........
This is at around 10psi
Maybe more STOCK than most!
Yeah, I'm bummed because my homemade boost controller is **** and it would spike up towards 12psi for a sec and the keep dropping right back down to around 10psi maximum no matter how much I would adjust it up.
I wanted to dyno at 12 psi and contemplate 14psi but since I couldn't get a solid 12psi run I decided to stop right there.
I drove about 80 something miles, rolled right in for my dyno appointment, strapped down and did 5 runs in 20 minutes. It was bascially as standard day of about 70 degrees and almost normal atmosphere pressure with low humidity.
BTW, the intercooler water never got more than luke warm, but then I didn't try a run with iced up water either!
Oh yeah, for all you catalytic converter haters out there....that was still pushing through a catalytic converter, a 2.5" main cat. The wastegate is atmospheric vent though.
Last run of the day I pulled the boost controller off and made 250/220 HP/Tq to the wheels on about 3.3 to 3.4ish PSI.
The spring I have in my wastegate right now is a 3.83psi spring but then I have about a 0.5psi pressure drop through the intercooler. Well it may be closer to 3.4 psi because I bet the pressure drop is lower at lower pressure and rises as pressure increases.....drag you know.
Oh yeah, Air fuel was measured at the tailpipe after the catalyst. I measure my own A/F with my wideband and it is spot on until you get up top where it gets a bit rich. Good safety though, but hey, I'm also loosing anywhere from 15-20 horespower with the air fuel dipping down so rich at the top end.
We estimate this engine at that boost level to be around 375-380 by just cleaning up the air fuel while it is on the dyno.
So 14psi is definitely 400 at the wheels......