I think you'll get an overboost error code with that black springI swapped out yellow spring with black. As I thought I hit 18psi at wot. I'm going to go with blue next that is 22psi according to chart. Don't be mislead the tune has to be able to tell turbo solenoid to go that high, and in turn applies pressure to move plunger and spring. The trifecta advantage tune took stock turbo to 20-22psi, so only stands to reason that the trifecta elite goes to atleast that too. From what I have read and seen the billet actuator is a better actuator than stock because it will hold boost at that whatever max psi is and stock hits itand backs off, not steady.
So gain in horsepower 10-15 yes I can believe it.
Usually a yellow spring with correct preload is enough, it's weird.Not sure if I will or not. I'm hopeful to get rid of large evap leak code...lol just joking. Let you know what happens when I do switch to black which will be today.
So you ended up with a black spring?Yeah I have seen it, why I was confused on what I happened. I'm data logging and the sending out. I think the mass air flow sensor is having trouble due to the cold intake mod. Tune is reacting how it should.
There's a guy on reddit: https://www.reddit.com/r/cruze/comments/t4in03 he's getting 21PSI on a gray spring, i don't understand, you're maxxet at 18PSI with black spring, but he's at 21PSI on a grayI would like to be a constant 20psi. Even when I move up to a bigger turbo I really don't want more than 22psi. I'm running a stock turbo with billet wheel. I don't think that it really flows that much better than stock to actually be at 20psi to make more horsepower.
By the way, assuming that your car is 1st generation then we both had same result with the yellow spring. I don't know what other mods you have other than the mamba waste gate actuator.How's it going? Still on a black spring? I switched to a gray and it's much better if compare to a yellow, i'm making 18-19PSI with a gray, few guys recommend me to try a black spring, i wonder, if i will be getting overboost codes with it.