throttle response & acceleration

wstar

Sprint Booster does change the shape of the curve, but keep in mind zero is still zero, and WOT is still WOT. Everything that happens between *is* a function of your foot, and you can make the car do the same thing by adjusting your foot. You may prefer the curve you get from Sprint Booster because it makes things feel more natural for you, but it's not doing anything you can't do manually.

UpRev tuning is mostly similar. It's very very slightly better in that you can also open up true WOT at low RPM (which the ECU normally limits a bit until the revs get up more, but that's in the ECU, Sprint Booster can't change that), but the value in that isn't huge.

In both cases, keep in mind that every change there comes with a tradeoff. The curve still has to start and stop at approximately the same values it did before. If you make one part of the curve ramp up significantly faster, there has to be a flatter area elsewhere to compensate.

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