bfnnrgn

I don't, wish I could. I also wish I could replace the computer with a throttle cable and be rid of a lot of this computer intervention to begin with.

x-tian-230k

Jangy,

The kick down switch is TRUELY just a button that has nothing connected to it. It might be different in the 03-04's. I think u drive an 05. The kick down switch is acutally the movement in the gas pedal going pass a certain point.

You seem very passionate about how the sprint booster works and how its not a mod but for a person who has and ECU done up by Kleeman, I love the sprint booster. The ECU remapping doesn't do much about the lag time. If I want to take the jerkyness away, i drive in C mode. STill very responsive and drives likes like a differnt animal. Even without the sprint booster, I try to smash the gas pedal, there is still a little bit of lag time. Sprint booster gets rid of that lag time..... anyways, I understand that you are not a fan of the sprint booster, but major of people who actually have and use the sprint booster everyday, I can safely assume that we are very happy with it....

Kev04C320

I'm still doubtful that the kick down switch does nothing. It's been proven in the Porsche 997TT Tip that if you depress the accelerator all the way down, it will result in worse 1/4mi time than if you don't step on it all the way, and it is equipped with a similar kick down switch.

bfnnrgn

The 911 may have something there, but our cars do not. It's just a dummy button on every car I've taken the pedal out in. That's not to say that the position sensor in conjuction with the throttle computer doesn't do something when the position of the throttle enters the range where the button is, but the button itself has no function. Get a socket wrench and pulls your out, takes 5 minutes and you'll see.

Kev04C320

Thanks for reminding me that I don't have beast right now
https://mbworld.org/forums/w211-amg/184711-beast-got-hit-last-night.html

I'll do that once I get my car back. Thanks.

jangy

Actually, I know lots of people that like it and have had my throttle response reprogrammed in older cars. i simply do not like it from a performance perspective on the E55. the "lag" that is there has NOTHING to do with the sprintbooster being there or not. It may SEEM to go away with the sprintbooster, but that is simply not possible, since the lag comes from the SC clutch AND TQ converter. In my case, I am big on handling and driving the car the way it was designed. If it truly is a DD, then sure, I can see where the sprintbooster can make it more palatable.

Interestingly enough, another issue I have with the sprintbooster and all the ECU tuners is why would they not program in an ideal throttle curve? I hate how incomplete and vague all the tuners are with their probgrams. All we (the customers) want to know is how much does it cost and how many HP it gives, but that doesn't translate into faster lap times.

Different strokes for different folks. Reality is that the sprintbooster is a cheap mod that has no irreversible detriment to the car, so i do not mind people geting it. I just find it funny that everyone is trying to get their cars to do the opposite of what I am. I want MORE modulation of the throttle not less.

jangy

I have and will. I got all pissed that my car had a bottle cap placed over the button during a dyno run and so i did take mine apart and look. As you say, 5 minutes, so I'll post pics.

jangy

The intervention can be overcome. why don't you drive it hard?? Hehe!! maybe that is what the real problem is?? To each his own, bro. do what you do.

EX-BEEMER

I've installed a S.B. on my ML63 and absolutly love it, but I'm not sure I would do it on a S.C. 55 motor. My E55 had traction problems stock from the factory. To add a S.B. might make it more twitchy yet.

An E63 would probably benefit more. Less torque down low where the Sprintbooster shines.

It really works well on my AWD ML63. 4 other ML63 owners installed units within the last weeks and all love it.

You may also try Stealthauto for acquiring a S.B. He's becoming the USA distributor. (Also a MBworld sponsor)

x-tian-230k

Jany,

Did you remove the kick down switch yet? Is yours differnt than ours?

phatmitzu

Question:

Does the TB open 100% when we only press the gas pedal down to the kickdown button? Or do we have to actually press down the kickdown button everytime to WOT?

jangy

right now there is confusion on the kickdown button the E55. Some say it is a dummy button, which wouldn't do jack to your TB valve. i don't know that it should. i assumed it was for TCU more.

jangy

Not yet. I been at work all day. i'll do it and tell. What I can't figure out is why the OEM part has the wire plugs on it if you guys say there are no wires running up to it (from behind). I know the front doesn't have connections.

Roupin

The kickdown switch works on my 07, so everyone who's complaining about it just isn't driving hard enough.

If you drive aggressively, the car will downshift hard without the kickdown pressed...BUT it will not hold the lower gear if you ease off the gas. With the kickdown slammed, it will still hold the lower gear for a good 3-4 seconds, even after completely getting off the gas. It serves a purpose in my car.

The only thing I can think of is some of you guys just don't drive hard enough, and your cars are in "pu$$y mode"

As for SprintBooster, it's a GREAT mod for those of you who are terrified of the gas pedal. Don't EVER consider that a real mod though, since it only makes a difference on the driver, not the car.

jangy

Alright, my boy (anothe member here) is going to send me his unit to test and tell about. I'll eat my words, if it deserves props.

EX-BEEMER

Say what you will, I agree it not a performance mod. I just prefer my performance a the top of the pedal instead of the bottom.

x-tian-230k

I dont think the discussion is around the kick down button and if it works or not. I believe the discussion is around if the kick down button actually is a button that triggers the down shifting or if its a dummy switch. In taking my accellerator (sp?) assembly apart I found that the switch in MY car has no wires attached to it. I believe that the button is there to mark a certain point in the accellerator pedal. As it goes past that point, it will automatically kick down a gear or red line.

Seconly, the sprint booster does modify your vehicle in some way, shape or form. So I am not sure why you wouldnt call it a mod(ification). Again just my opinion.

Benz-O-Rama

Check your PM...


I'll send it out this weekend.

x-tian-230k

Ohh yeah.. Clay-mon is steppin up to the plate...i remember when i had to persuade you to get the S/B... u haven't driven in to any living rooms yet! hahaha... now get off ur butt and post some pictures of your great adventures in to south america fooooo!

dsc

Alright Jangy, I'm counting on you. Give an accurate review as to what it actually does.

Benz-O-Rama

I know this waaaaay off topic but here's an appetizer:

https://mbworld.org/forums/showthrea...ghlight=brazil

jangy

I will. I'll let you all know exactly what i do and don't like about it.

x-tian-230k

Saw those bro....need the top secret secret ones that you have to email me!! heheheh

Benz-O-Rama

Ehem....

Check your Gmail

Benz-O-Rama

Sprintbooster sent this morning. I've also put a coupon in the box for tirerack.com, you're gonna need it