flyinhawaiian01
New member
Could you make one and sell it for $100? Seriously. Seems an open market for someone.
Could I? Well, its a possibility I guess. All it is in the pedal is nothing more than two potentiometers (AFAI can tell), and changing their resistance values, or piggybacking another set of resistors should change the curve. I believe that's all the sprint booster does, aside from having an electronic switch and a few lights, as well as a circuit to keep the mode selected if/when the switch/light is disconnected from it.
But, why bother with it, China's already got one out for it at 180 shipped, and I bet there will be more of them on the market in another couple years.
Here's one on ebay right now: Throttle Controller Booster for Toyota 4Runner 2010 On | eBay
The thing that bothers me is the wording of all of these controllers. There is absolutely no way that the throttle timing is increased by adding something inline, its physically not possible. The pedal has no electronics inside of it, so there's no delay in its reporting of the pedal's position! Its two potentiometers (ie., two volume control knobs) and all it does is reports how far the pedal has been depressed.
The ONLY way these boxes can speed up the response time is to look for the pedal starting to move and send a "blip" to the ecu to trick it into thinking you just stepped down harder on the pedal, then backed off a bit. However, I did NOT see any "blip" of the throttle through my torque app while monitoring the sprint booster, what I saw in the logging data from the pedal outputs was just a faster rise of the throttle, and maxing out sooner. Basically shortening the throw of the pedal's range.
Here's a quick chart from toyota with an overlay I made of what these units, such as the sprint booster, is doing.
I'm pretty sure by changing the resistance values of those two potentiometers, you'll be able to do the same thing, but to take one apart, source a bunch of different pots that are the same size, then determine which one will do what we want it to do, that would be weeks of testing and a couple hundred bucks. Its just not worth the time and money to r&d this, I'm fine with just adjusting my throttle input with my foot!