amgalex

Well after doing a little bit of research on what Sprint Booster does I have came up with my own no cost design to help with lag and increase throttle response.
Get a 2 liter cola plastic bottle cap,( fits perfect for what we need), some scotch tape. Tape the cap directly unto the kick down button under the gas pedal.
Since throttle is controlled not by wire but electronically you must do the transmission reset so when the kick down is pressed throttle signal will read at 100% ( verified by an obd 2 reader)
Now the ecu readjusts the gas pedal range so 100% throttle is closer than before and whalla, my own sprint booster
results: less lag, more aggressive throttle

Don't believe me?
try it yourself and post back the results..

LeeRod80

You're crazy....

amgalex

I was not joking
someone else try this to confirm my results

MR888

Hrmm, I hope this is a joke.

MR888

why in the world would you want to have the kickdown pedal depressed with a light foot? its only good for serious passing or serious acceleration otherwise its gonna be just jerky, don't knock the sprint booster untill you try it this thing is no joke

amgalex

lol
Im dead serious.
Iv been driving around with the cap on the switch all day long today

amgalex

like i have explained before, I think the ecu readjusts to new decreased operating range.
Most new cars ecu's can be reset this way to learn operating range of the gas pedal.
Car is not jerky at all and I'm not knocking the spring booster, its just an experiment here but I think it actually works
thats why I want someone else to try this

MR888

hrmm wait so its only a bottle cap? I misread your first post lmao, I thought you taped on a bottle inbetween the pedal and would of had the kickdown hit every time you gas it just a cap seems ok i guess

amgalex

lol

did you think it was the bottle??????

lol

amgalex

kick button engages 1" sooner and looks like range of the gas pedal got decreased by looking at my obd2 computer. 100% throttle as soon as the button is pressed even though gas pedal does not go as far down as it did before.

MR888

do you get better response in the pedal range before kickdown?

amgalex

Im not sure, although it feels like response is better before the kick down as well which would make sense if ecu readjusted the range.

MR888

Get the Sprintbooster and you will be SURE! lol this thing is nuts

QuadBenz

Is anyone else tempted to try this... just to see if it will actually work?

amgalex

I say definitely try it, don't cost you nothing just 10 min time
just please post back the results, thats the only way we can all learn something.

saintz

Having just replaced my throttle position sensor and relearned the ECU, I am inclined to believe this will behave very similarly to a sprint booster. The only real possible difference is this remaps your throttle linearly (effectively just decreases throttle range and increases throttle sensitivity), whereas the sprint booster, at least in theory, could apply a non-linear mapping (although I highly doubt it does).

Maybe someone with a Sprint booster can disconnect it and try this to confirm if it works similarly or exactly the same.

MR888

Im thinking about it, and there is no way this can work like the Sprintbooster, ok you have a bottle cap on the kickdown, but that means you will have to hit the kickdown atleast a good few times a day for the ecu to remember the settings, and living in a city kicking down is not really an option on the streets, the SB works as soon as you touch the pedal and never forgets its settings. All this said we are assuming the ECU even recalibrates the pedal range which I doubt it does in the first place, so im pretty sure this whole idea is BS, the only benefit is you will hit the kickdown earlier, with no effects in the pedal range before that.

LeeRod80

Will hitting the kickdown almost everytime you use the throttle damage anything?

armaniE55

No but it's unnecessary stress unless your in a rush to get to MCaDee's



Leerod I posted a few pics on the other Thread

saintz

The stock electronic throttle appears to be able to recalibrate itself. This is different from cable based throttles. If anyone with a Sprint booster wants to test it, I would once again suggest comparing.

amgalex

You will not hit the kick button each time you accelerate, it will be a little easier to hit with the cap on but you will still only hit it when you floor it.

LeeRod80

But, when you kick it down.. theres still a delay (lag) before it goes full throttle.

Sprint booster...almost NO lag at all..

amgalex

yes the shift lag is still noticeable but I did not think that Sprint booster eliminated that issue, did it?