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Discussion Starter · #22 ·
Yes it is similar tot eh SB. You have to take the pedal off and then disconnect the OE connector (this is the hardest part). The pedal is just a pin.

Connect it, string the wire up under the dash and choose a location for the control panel. Mine is laying flat in front of the odometer on my Gen Coupe.

I paid $115 for my 6 mode one off aliexpress. Once you find what you like you probably won't change it much.

https://www.aliexpress.com/item/Pot...&terminal_id=31bea3062bca4106becf76ee233a14a1
Hmmm... now to find for a 2019 Elantra...
 

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I'm frankly surprised this is a topic of discussion, at all. This device/modification is effectively doing that- just leaving the throttle in Sport mode.



The throttle "lag" is part of the drivetrain programming. I appreciate the fact that in normal mode, it electronically "rolls" onto the throttle so I don't have a wheel-hopping mess if I floor it from a light. Instead, it smartly rolls onto the throttle itself and gets on it's way. When you put the cars in Sport mode, it eliminates the lag and makes the response pretty much instantaneous. Eco encourages a different driving style by further diffusing the response and requiring further pedal travel to wake things up.



I've driven a number of cars in the past, especially early drive-by-wire throttles (my 2002 Sentra SE-R Spec V, from years ago, for example) that have egregious , nearly unforgivable throttle lag. This is definitely not one of those cars.


If you enjoy this part, and it makes you feel better, more power to you. But I would consider it a waste of money. So far as any fuel mileage benefit is concerned, unless it's scientific with verifiable proof that it alters A/F ratio from the factory ECU programming, at any given throttle position, it's bunk.
 

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Discussion Starter · #25 ·
I'm frankly surprised this is a topic of discussion, at all. This device/modification is effectively doing that- just leaving the throttle in Sport mode.



The throttle "lag" is part of the drivetrain programming. I appreciate the fact that in normal mode, it electronically "rolls" onto the throttle so I don't have a wheel-hopping mess if I floor it from a light. Instead, it smartly rolls onto the throttle itself and gets on it's way. When you put the cars in Sport mode, it eliminates the lag and makes the response pretty much instantaneous. Eco encourages a different driving style by further diffusing the response and requiring further pedal travel to wake things up.



I've driven a number of cars in the past, especially early drive-by-wire throttles (my 2002 Sentra SE-R Spec V, from years ago, for example) that have egregious , nearly unforgivable throttle lag. This is definitely not one of those cars.


If you enjoy this part, and it makes you feel better, more power to you. But I would consider it a waste of money. So far as any fuel mileage benefit is concerned, unless it's scientific with verifiable proof that it alters A/F ratio from the factory ECU programming, at any given throttle position, it's bunk.
What you may not realize is that the M/T Elantra does not come with Drive Mode Select. It is essentially locked in "normal" mode. If sport mode were available, I probably wouldn't bother with a throttle booster.


That said, a throttle booster can tighten things up much more than sport mode. Higher end ones even have "valet" mode, which cuts the throttle substantially, and "lockout" mode, which eliminates all throttle without entering a pin.

Many Hyundai Genesis owners buy them, including the product specialist at my local Hyundai dealer. As a matter of fact, even the head of the service department was a fan. Said it was the best dollar for dollar upgrade you can put on a drive-by-wire car.

As far as too much throttle response, this can be adjusted. In my opinion reducing throttle lag puts the experience of driving back in the hands of the driver. Sort of like how threshold breaking is more effective than anti-lock breaks... for those who properly know how to break.
 

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I agree after getting one. It should be the first mod you do. I only adjust mine now with a big temperature change. I have to dial it back the colder it gets.
 

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At least this mod does something as opposed to those "performance chips" that you plug into your OBD-II port...

Still don't really see the point in this though since it doesn't add any additional power or anything.
 

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The effect these have is rather dramatic. And I would say they can improve your 60' times. it does not add power but you get it all faster.......
 

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Discussion Starter · #29 ·
At least this mod does something as opposed to those "performance chips" that you plug into your OBD-II port...

Still don't really see the point in this though since it doesn't add any additional power or anything.
...
 

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SO I'm guessing this greatly decreases mileage? I want better mileage, not worse.

I've driven over one million miles now and have never needed to accelerate super fast anywhere I've been in North America. Even my old 85 horsepower hatchback I had in the late 80's, had more than enough power for getting on the highway, passing etc. And I also never come anywhere close to flooring an acceleration pedal. Usually my foot is barely on it.
 

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SO I'm guessing this greatly decreases mileage? I want better mileage, not worse.

I've driven over one million miles now and have never needed to accelerate super fast anywhere I've been in North America. Even my old 85 horsepower hatchback I had in the late 80's, had more than enough power for getting on the highway, passing etc. And I also never come anywhere close to flooring an acceleration pedal. Usually my foot is barely on it.
No it can actually get you better mileage as you get use to it because you are using much less gas pedal.
 

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i can see the mileage increase. i always felt the map sensor needed improvement. it needs to sense when to downshift a lot sooner, like when decelerating and going around a sharp turn, then accelerating, it needs to get to a lower gear a lot faster. when on the freeway, and the road has a slight incline, it needs to downshift sooner. of all the bad things i can think of about the prior car, a 2013 mazda 3, it was way better in this regard.
 

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No it can actually get you better mileage as you get use to it because you are using much less gas pedal.
I'm very confused.
So let's say you have your foot 50% on the gas pedal on a completely stock setup. But, now you install a throttle booster and it adjusts it so that 25% of the gas pedal will basically equate to 50%.

Either way, the car will see it as "the gas pedal is down 50% of the way so I will give out that much power". I really don't see how that will create any sort of better mileage.
 
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Discussion Starter · #35 ·
I'm very confused.
So let's say you have your foot 50% on the gas pedal on a completely stock setup. But, now you install a throttle booster and it adjusts it so that 25% of the gas pedal will basically equate to 50%.

Either way, the car will see it as "the gas pedal is down 50% of the way so I will give out that much power". I really don't see how that will create any sort of better mileage.
That's not how it works. Check out the vid I posted.
 

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That's not how it works. Check out the vid I posted.
I did... Literally, that's exactly how devices like these work with a drive-by-wire car. You're going to get the exact same results if you floor it compared to having a device intercept the signal that floors it for you when the pedal's only pushed down halfway.

There's no magic logic in the drive-by-wire pedal itself that's able to be "unlocked" by putting something like this in place. You're just sending a signal to a computer that decides what to do with said signal...

It's a fancy signal amplifier for your gas pedal. That's all it is, that's all it's capable of being in this particular case.
 
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Discussion Starter · #37 ·
I did... Literally, that's exactly how devices like these work with a drive-by-wire car. You're going to get the exact same results if you floor it compared to having a device intercept the signal that floors it for you when the pedal's only pushed down halfway.

There's no magic logic in the drive-by-wire pedal itself that's able to be "unlocked" by putting something like this in place. You're just sending a signal to a computer that decides what to do with said signal...

It's a fancy signal amplifier for your gas pedal. That's all it is, that's all it's capable of being in this particular case.
Watch again. It doesn't shorten the throw of the gas pedal, it speeds up the time it takes to open the throttle body.


For example, if you push the gas half way, the TB will open half way... but much quicker (like the cable-systems we all had). Rather than the ECU slowly open the throttle, it opens it faster based on the selection made.


Install a Sprint Booster, set it on the highest level and step on the gas. I guarantee you that you will spin your tires. Without it, the car will slowly accelerate.
 

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They do command a lot higher initial opening of the throttle plate compared to the position of the gas pedal depending on your setting. It decays fast though and if you hold your foot at half pedal will return to that status. But it is not linear.

In a very aggressive mode it only takes a small bit of movement to create a short term commanded 100% throttle opening, it will show as around 85% throttle position on the OBDII. Thus as you learn the response you use less throttle input and get a bit better gas mileage.
 
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