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I will be simply amazed if you get anywhere near stock-like drivability and mileage out of this, if it runs right at all!
Weasy is right, you need better fuel management. As an example, a 2-bar runs out of sensitivity at 14 psi. That means above this boost, you are still fueled as if you are AT this boost. You are COMPLETELY susceptible to overboost destruction in that mode! You need an ECU that will cut boost if you overshoot, which is easily done on some controllers.
The SAFC shouldn't ever be used on a non-Honda. Why? Honda uses a baro-compensated alpha-N scheme for their ignition and a MAP sensor for fueling. The SAFC therefore only adjusts FUELING. On every other car out there (to my knowledge), the SAFC adjust both fueling AND IGNITION. Hence, the afore-mentioned "boom."
The best way (of course) is to use an EMS. Short of that, a really good piggyback like the SMT6 should work, but you will still have issues like overboost.
Lastly, 315 injectors aren't big enough. This will give you roughly 230 crank hp at 100% duty and roughly 11.0 AFR (calculated assuming 0.53 lb/hp-hr BSFC, typical turbo). Most tuners draw the line for safety at 80% duty, which comes out to roughly 185 crank hp.
This means not only can you blow on overboost from the map sensor, you can blow up with the small injectors.
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