My car was actually the one that made "only" 190 :P with the twin screw. What we learned from tuning my car was that how restrictive the oem header really is. It limits the potential significantly. From my understanding Sasha didn't feel comfortable pushing it any further than he did because of the heat being built up/pushed back up through the header. Also, 91 (what I was tuned for) vs 94 octane apparantly also makes a world of difference.
NA Application w/ header and 94 octane will make 180-190
Twin Screw w/ OEM header on 91 made around 190..
but..
Twin screw w/ header + 94 Octane should push 230... not just pulling these numbers out of my ass.. Chris from Touge Tuning was telling about a car Sasha had tuned after mine.. All it had differnet from mine was UEL header and 94 octane and he hit 224.
I'll be doing phase two of my build later next month..
72.5mm pulley, Highflow Filter, EL Header + 94 Octane.. see where that gets me
.. Might stick with 91 octane though.. car seems pretty sensitive to inconsistent fuels.. atleast with shell 91 I know what I'm getting everytime I fill up.
Cars been great so far.. no complaints what so ever.. only time I ever had issue was when I put in petro 94.. the car just wasnt' happy... but once I got shell 91 back in there everything was fine. Haven't tracked it or anything, but day to day driving (spirited at times, when its safe of course
) has been great.