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There are no worries on bumping up the power. My first priority is to keep the engine healthy. Following a well-established path, I'm going to make the engine more powerful and more robust, and I'm stopping well short of where I could go. There are 450hp Viggens out there.
The key is, I won't be trying to get one configuration that is both powerful and miserly, so I'm not going to have to worry about a 300hp setup that runs dangerously lean and hot. In my mind, my eco-tune will effectively turn the turbo off, and soften the hell out of the throttle mapping. I can also set torque limits for each gear. I probably won't lean things out too much; I don't want to save a little gas at a cost of dumping ridiculous amounts of NOx into the atmosphere. But the point is, in eco mode, she'll prolly only be able to make 170hp as a result of the modifications.
Ideally, it'd be as easy as turning a knob to switch modes, but I'm a little way off from that.
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