Discussion Starter · #1 ·
So I was just browsing around Blouch's website, looking at 20G's for s***s and giggles, and it made me start thinking about the different calibrations that they offer for their TD05H-20G. Apparently they offer them pre-calibrated between 9psi to 19psi increments and so I was wondering what are you guys out there with 20G's running the actuator calibrated at and why? I know that the actuator controls the wastegate from the pressure taken from the intake manifold, but why would you choose say 9psi vs 19psi? Were some of you looking to lessen the amount of exhaust gases entering into the turbo because your exhausts are too free-flowing and by having the actuator calibrated at a really low psi that would all the wastegate open early? If that were the case, why wouldn't you just have a more restrictive exhaust that wouldn't allow as much exhaust gas to enter the turbine thereby allowing the actuator to be calibrated at a higher boost level? What are the pluses and minuses of having the actuator calibrated at a high boost pressure vs a lower boost pressure?