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PedalBox and Pedal Commander - what do they do and how do they work?

Fuel consumption is already fairly lame on my Rally so I'll pass on fitting a gadget that makes it drink even quicker. Then again...maybe in a few years though, once I've learnt to ride it round corners properly.....

Personally, I don't think the Ryker needs a throttle modifier. It comes stock with a pretty responsive throttle. Probably more due to the CVT than the ECU. Apples and Oranges between the 2 machines. We've put some Pedal Boxes on Rykers. But we always try to enlighten customers with our opinion that they are not necessary before doing so.
 
where I really appreciate the improved throttle response is for passing cars out on the highway. Arizona has a lot of up and down riding and finding a spot to pass a slow moving vehicle is not always easy. Having a quicker throttle response certainly helps.
 
Assuming the above is correct (no reason to doubt it), I was wrong. Thanks for setting me straight. :cheers:
:cheers:
You're not wrong. These boxes work exactly as you have described. The box manufacturers have charts on their websites that show exactly that.


Interesting video. Let's look very closely at what is happening here.

While he talks about pressing the accelerator pedal rapidly, he never does that. The accelerator pedal is actually being pressed fairly slowly. The butterfly valve then naturally moves fairly slowly in response. If he would have pressed the pedal rapidly to the floor, the butterfly would have opened very rapidly. (He is using a demo setup and never tests how rapidly the butterfly can open in stock. I made measurements in the real world on my Ryker and showed that the butterfly can and does in fact open in the blink of an eye.)

Next, he turns on the box. But, he presses the pedal at about the same rate. Because the box amplifies the pedal signal, in the time it took for the pedal to move just 20% the box delivers an 80% signal to the ECU - of course the butterfly is going to open more, just as it would if he pressed 80% unmodified. In effect, he has pressed the pedal much more rapidly. That is what these boxes do - increase pedal sensitivity. A more sensitive pedal requires much less travel to send the same signal to the ECU. This gives the perception that the butterfly is opening faster.

This demo never illustrates what actually would happen if you press rapidly to the floor.

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I'm a late-comer here, but I've been reading this thread with interest. I've been trying to decide whether to try one of these devices on my 2024 Spyder RTL, purchased last September.

“After installing a Pedal Box or Commander unit, you can manage the rate at which the throttle bodies open up to, and even beyond, a 1 to 1 ratio.”

No, you cannot. You are managing the amount that TAS increases with rotation of the twist grip. The ECM manages the throttle body butterfly valve based, among many other things, the TAS. You are changing the relationship between twist grip angle and TAS, that is all. The ECM is going to react the same with the same TAS input. How can it not?
Are you certain of this? I write embedded firmware for a living. If I were making an ECU I might be inclined to include not only TAS voltage (V), but also the rate of change with respect to time of the TAS voltage (dV/dt). The PedalBox and Pedal Commander make it possible to achieve greater dV/dt than is possible without them, it could be that the ECU actually is opening the butterfly faster with them. Peoples' reported experience with these devices supports this idea.

I'm not saying you're wrong. I'm just saying that I'm not convinced.
 
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