[SuperSound]

Originally Posted by cellsafemode

There are a couple things going on here that are maybe confusing things.

1. the "dead zone" i think the op is referring to occurs when you gradually just touch the throttle as if you were say coasting and wanted to give it what you would assume would be enough throttle to raise the rpms but in certain situations doesn't seem to. This "dead zone" at the beginning of throttle travel is not going to be fixed by the vitesse unless they have offset the resting state of the peddle position sensor and it's very possible they are doing that and it would make sense then why they're completely illegal to use on public roads because a slight error in tolerance between their product and your OEM sensor could make the resting state of the peddle sensor > 0% and start moving your car forward greater than expected or keep the car from being stopped by the emergency break at rest. That last part would fail you in safety inspections.


2. there is a perceived "dead zone" that some people have with the peddle in that a little movement doesn't equate to much of a change at all in throttle response. The vitesse controller reduces this to varying degrees based on the setting so that a little movement creates greater and greater changes in the effective peddle position sensor output. This also though, gives you the perception that it fixed the #1 issue but only because it's reduced the range that #1 is in effect to such a short distance that you can't physically move the peddle little enough to recreate it. The part i have a problem with this solution though is that it reduces the resolution of the peddle position sensor for the rest of the travel as well. Making it more difficult to keep a steady speed. This reduces gas mileage and can make driving at the highest speed without catching the attention of police a bit more hairy.

Not saying that S1 etc wouldn't be perfectly driveable and you couldn't maintain your speed after getting used to it. Just that it's not a solution, it just seems to be a mask (illegal one but whatever i guess). So far the only way I've heard about to fix the issue is tuning it out, but then that risks your warranty i guess.

Have you seen Sledge's videos of the Vitesse? No one who uses it has complained of "dead spots" in the pedal afterwards. Also I don't think anyone has actually described a "dead spot" in the pedal, just lag in the engine responding to your foot. To me, that rule outs the physical dead spot. Plus when you think about the engineers tuning, they wouldn't add a physical dead spot to help the car launch the best, they would tune the throttle response to ramp up slower.

Also I didn't see the Vitesse unit having a disclaimer about not for public road use. Maybe it's in fine print somewhere but it definitely would not change anything related to safety (unintended acceleration).