Is Mamba wastegate actuator worth it?
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I have one I'm going to be trying. It's on my budget build, purchased off ebay for 99.00 new. I will review it and see if there is a difference. I believe there will be, only because you can set your boost a little higher. But it isn't that easy, and a risk. If your boost gets out of efficiency of the turbo compressor map it wouldn't do much. There is also the chance of over boosting and blowing your motor up. By putting in too much air and not enough fuel. Definitely would have a boost gauge to make sure and adjust slow. A fuel to air ratio gauge would also be great help.
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I installed the mamba billet waste gate actuator yesterday. I'm not going to hold back on installing or what has happened. If I make mistakes it's ok, I'll work on correcting them. If I did a idiot move I don't care either, it's learning and may help someone not make same.
It is a universal kit, I left yellow spring in. It's 12psi, had to reclock top of actuator for vacuum line. I also had to drill the hole bigger for the turbo waste gate arm pin.
With the advance trifecta tune, the car ran good off idle but not at cruise 70mph and had to get on it. Felt like no turbo and only 2-5 psi of boost.
I upgraded to elite trifecta tune, car runs hard but never pass 12psi of boost. I'm going to swap out spring to 18psi to see what happens.
Will keep posted, is mamba billet worth it, not sure yet.
It is a universal kit, I left yellow spring in. It's 12psi, had to reclock top of actuator for vacuum line. I also had to drill the hole bigger for the turbo waste gate arm pin.
With the advance trifecta tune, the car ran good off idle but not at cruise 70mph and had to get on it. Felt like no turbo and only 2-5 psi of boost.
I upgraded to elite trifecta tune, car runs hard but never pass 12psi of boost. I'm going to swap out spring to 18psi to see what happens.
Will keep posted, is mamba billet worth it, not sure yet.
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Pics of mamba I used.
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I 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.
So gain in horsepower 10-15 yes I can believe it.
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I think you'll get an overboost error code with that black spring
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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.
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Usually a yellow spring with correct preload is enough, it's weird.
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Well you were right, the blue spring gave me the overboost code. I switched back to black and it's all good now. But again limited to 18psi. Yeah I don't understand what the case is with the yellow spring. I set the preload exactly as the stock actuator. I thought that the waste gate was opening up, due to the 12psi yellow spring. Maybe something else is going on too.
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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.
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So you ended up with a black spring?
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For now yes. But something just isn't right with tune. I'm going to try something first before sending out the data logging. Weather permitting.
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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.
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Unfortunately I had some issues, with valve cover. Whoever worked on the car before caused alot of problems. I'm straighten things out but it is causing time. The black spring didn't cause any overboost code while I tried it out. Let you know more later end of this week coming. Should have car back on the road and testing things.
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I 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.
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There's a guy on reddit: 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 gray
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Sorry, for confusion. Max on black spring that I see is 22psi, hits 18psi easily. On yellow I saw only 12psi, which as you said before according to the youtube Dave's he was hitting 30psi. The blue hit 22psi and possibly 24psi, but I got the overboost code. I'm still working on tune, the cold air intake is really messing with the computer. That may be my problem on why not same as Dave's project or possibly the second generation has computer has better learning than 1st generation.
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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.
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