Quote: Originally Posted by bast525
The stock WGA absolutely cannot hold more than 10-11psi by redline.
Absolutely untrue!!! Many people have observed, especially on stage 1, that the stock WGA can sometimes hold as high as 15psi by redline. Myself, I notice that on my S1 ECU, whenever I reset the ECU, the boost will ALWAYS hold 13-14psi by redline until the computer 'relearns' the curves (usually the first two days), then it will be back down to 11psi by redline. So for whatever reason, it is the COMPUTER that is lowering the boost as rpm climbs, NOT just a function of the WGA being too weak. Some people get consistent 14-15psi by redline on S1 and the stock WGA ALL the time, even after the computer relearns the curve. Maybe they are in better climate or have better fuel, who knows, the point is the stock WGA CAN hold this kind of boost if the PCM lets it! Take control away from the PCM using various methods and you can definately get the stock WGA to hold more than 11psi to redline, you don't need an upgraded WGA to get a higher hold.
i actually say its half and half. that wga spring is weak. what happens if you take away the pcm control of the stock wga? you will boost no more than 4psi. go ahead and try it some time. the wga springs is weak sauce but thats why when the pcm controls boost it boosts 15 at redline.
