Hyundai genesis coupe sedan sprint booster

[JDC]

Anyone seen/used this gadget?

Seems to me that in 4/10ths of a sec, 'if' this gadget worked as described, you might get 1/10th better response?

Seems negligible for the $.

http://cgi.ebay.com/ebaymotors/09-H...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

 

[ASHDUMP]

There has been some talk of this here on the site. I would like to get it because from what other people have said it increases the response time to the gas pedal. One of my gripes with the newer cars is that throttle response is slow/delayed.

 

[Rey]

I was an early adopter on the variable Sprint Booster. Now have 7,500 miles on it and will never go back to stock. It transforms the car; and it is still easy to control. There is a 30 day trial offer on these. But be sure you fully understand the terms of the trial offer. The cost seems high, but after all these miles I would gladly pay it again.

 

[ASHDUMP]

I was an early adopter on the variable Sprint Booster. Now have 7,500 miles on it and will never go back to stock. It transforms the car; and it is still easy to control. There is a 30 day trial offer on these. But be sure you fully understand the terms of the trial offer. The cost seems high, but after all these miles I would gladly pay it again.

Details on the terms?

What would you say you notice the most since installing the sprint booster?

 

[JDC]

What would you say you notice the most since installing the sprint booster?

Good question. x 2

 

[Disaster]

Anyone seen/used this gadget?

Seems to me that in 4/10ths of a sec, 'if' this gadget worked as described, you might get 1/10th better response?

Seems negligible for the $.

http://cgi.ebay.com/ebaymotors/09-H...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

That graph is misleading with time shown on the axis. The Sprint Booster can not effect anything related to time. All it does is increase the throttle output per pedal movement, effectively lowering the resolution of the pedal so that 3/4th throttle is equal to full throttle and the last 1/4 throttle does nothing. It does not make the car accelerate any faster. You can do the exact same thing by pushing the throttle further yourself.

 

[ajls09873]

I 100% sure you will lose your warranty from manufacture.

 

[ASHDUMP]

I 100% sure you will lose your warranty from manufacture.

I'm pretty sure you won't.

 

[Rey]

The most noticeable change with Sprint Booster is throttle responsiveness. Before, the car seemed a bit sluggish for its horsepower and somewhat reluctant to downshift. Sprint Booster reverses this. The change is quite dramatic.

There will be no warranty problems unless it can be shown that the Sprint Booster directly caused a part to fail, and then any other parts on the car will still be covered by warranty. All the Sprint Booster does is to change an electronic signal to a "receiver", the ECU. The subject is well covered by legislation, the Magneson-Moss Act (sic).

 

[Disaster]

The most noticeable change with Sprint Booster is throttle responsiveness. Before, the car seemed a bit sluggish for its horsepower and somewhat reluctant to downshift. Sprint Booster reverses this. The change is quite dramatic.

To be clear, the Sprint Booster doesn't make the car any more responsive. It does make the throttle think that it is pressed in further than it is so 3/4 throttle acts like full throttle. You can do the same thing by just pushing the throttle in all the way.

What you lose is control. Small throttle movements now become greater throttle movements, and therefore adjusting small increments of throttle will be 25% more difficult.

IMHO, this is a bad thing...especially with the overactive ESC of the Genesis. In order to drive fast you need to meter the throttle carefully, or you will go into ESC protection mode where the computer throttles the engine back...actually making you go slower.

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[nearwater]

The delay in throttle response bugs me too.
The DBW and the automatic programming is geared more towards high MPG and smooth ride. Not performance driving.
Not that this is a problem or anything, but when I make a turn and give more gas to accelerate, the delay in responding to my throttle input is quite annoying at times.

This device has an interesting idea to "boost" the responsiveness of an engine.
Afterall, the throttle IS restricted by ETC algorithm and the programming of how to apply the amount of gas pedal being pressed to the actual throttle opening is totally up to the manufacturer.


Disaster,
I hope the logic behind this "Sprintbooster" isn't as simple as multiplying the ETC output voltage by x amount of times and feeding it through the ECU.
If they're smart enough, they would've left the minimal throttle input(say, 1/32 or 1/16 throttle) very close to stock output, and boosted up the mid-throttle quite a bit and then gradually taper off towards full-throttle.
At least that's what I would've done if I were to calibrate this device.

Neat product, IMO. But a bit pricey for what it is.

Dan

 

[JDC]

Well, basically it looks like they just used the volts map and the 'feel' to come up with a new acceleration curve.

Electronically that seems pretty straight forward.

I agree with the idea that you might lose low down throttle sensitivity.

 

[ImInPA]

I 100% sure you will lose your warranty from manufacture.

The dealer/manufacturer would have to prove that installation of this device was the cause of the failure. For example, If you intalled this device and the Radio stopped working, or the trunk release stopped working, AND, it could not be attributed to the device, then your warranty must be honored. If you installed this device and your throttle stopped working, they would probably not cover that underwarranty, however, they cannot universally deny warranty coverage becuase you had a third party device installed.

 

[nearwater]

The dealer/manufacturer would have to prove that installation of this device was the cause of the failure. For example, If you intalled this device and the Radio stopped working, or the trunk release stopped working, AND, it could not be attributed to the device, then your warranty must be honored. If you installed this device and your throttle stopped working, they would probably not cover that underwarranty, however, they cannot universally deny warranty coverage becuase you had a third party device installed.

True.
But how are they going to know if this device was installed in the first place if the owner removes it before bringing it in to the dealer?
Theoretically, gas pedal is a switch that sends variable voltage to the ECU.
And this device is basically boosting them up a little.

Dan

 

[ImInPA]

True.
But how are they going to know if this device was installed in the first place if the owner removes it before bringing it in to the dealer?
Theoretically, gas pedal is a switch that sends variable voltage to the ECU.
And this device is basically boosting them up a little.

Dan

The Law is called the Magnuson-Moss Warranty Act of 1975. The auto manufacturers had become very abusive to customers. Prior to this act, you could actually be denied waranty coverage for a broken radio if they discovered a non-OEM air filter on your car. The Magnuson-Moss Warranty Act of 1975 essentially puts the burden of proof that the third party part caused the failure. If the manufacturer cannot prove that, they must honor their warranties. You can google the Magnuson-Moss Warranty Act of 1975 and learn more about it.

 

[nearwater]

The Law is called the Magnuson-Moss Warranty Act of 1975. The auto manufacturers had become very abusive to customers. Prior to this act, you could actually be denied waranty coverage for a broken radio if they discovered a non-OEM air filter on your car. The Magnuson-Moss Warranty Act of 1975 essentially puts the burden of proof that the third party part caused the failure. If the manufacturer cannot prove that, they must honor their warranties. You can google the Magnuson-Moss Warranty Act of 1975 and learn more about it.

Thanks for the info. I was aware of it.
I was questioning ajls09873's comment on how the dealer would void one's warranty if this device was used.

Dan

 

[ImInPA]

Thanks for the info. I was aware of it.
I was questioning ajls09873's comment on how the dealer would void one's warranty if this device was used.

Dan

Gottcha...yes...the dealer could not do that unles very specific criteria can be proven. But even then, it would difficult to void the entire warranty.