so i just bought a 2012 diamond white S65. i was on a long dark back road and got it up to the governed 186 mph, and it seemed to hit that number so fast and so effortlessly with much more left to go. does anybody know what this will get up to with out the speed limiter? i read somewhere that it would reach 240. but not sure if thats true or not. im tempted to take off the limiter and see for myself. but anybody with any info on this would be cool. thanks!

also...does anyone know how to turn off the traction control?

Hey Kenneth

Congrats on the S65! As you found out first hand, it's a beastly car.

That said... you mentioned this car is new and you're winding out the motor that hard so soon. That's probably an ill-advised combination. If it were me, I'd really lay off the whole-shots for a while. There is a prescribed break-in for these cars which I really would follow carefully.

Secondly - you mentioned a 186 mph governor. You've got the 030 or performance-package installed on that car, methinks. The only way to break through that limit (I can't even conceive of 186 mph being a limit save for that of physics) is to swap the ECU. I have it on good authority that you really want to trust the big guys on these, and not go with one that is a work-in-progress.

There is a way to defeat the ESP. Historically, ASR is put into diagnostic mode and run normally - that's how those ASR defeat switches work. In the newer cars, ESP is integrated within the ECU (as I understand it) and tapping or shorting out pins doesn't work any longer. Therefore, that too has to be coded within the ECU.

Terminal velocity on W220 S65s is estimated at 195-200 mph or so. W221s should be similar. For comparison, terminal velocity for an S55 is about 180-185 and S63s are about 190. When you find it, please post, but by the grace of God, don't get dead!

+1

Iv got a s600 tuned with about 635hp.. and iv had it to 195mpg.. using a gps mph gauge when speedriven did my ecu tune they reset the limter to 212mph..they have a 700hp s65 they said they have hit like 220mph in

A couple of things. People die very easily at these speeds. A deer. An elderly driver. A pothole. Take your freakin' car to Loring for the land speed record event or Texas for the mile event. Mine has been 186 at loring before I reset my limiter to 200, which Renntech will gladly do for you if you sign a waiver. There are a few other problems, though. There is a reason that the tire manufacturers won't warranty the tires at one of these events... The stresses on your tires go up logorithmically with increased speeds above their rated limits, especially given our cars' weight. In a quarter mile, in a 200mph car, it gets there in 7 seconds or so and begins braking. In our big pigs, at 186 you are accelerating comparitively slowly, as it has taken you over a minute to get there and now you are building speed at a snails pace. It would probably take you close to a minute to get from 186 to 205 or so, all the while your 5000lb car is building heat in your 186mph+ rated tire. Your chance of a blowout at those speeds is good enough that I declined to return to Loring after the organizers contacted me and suggested that I add a HANS seat and return. Unless you (even if you really) have a very heavy duty rollcage in a controlled environment, I believe you are playing with fire. Now if you can find a 200mph+ rated tire for an XL load rating, I'd still call you not so nice names for trying this on public roads but id be much more comfortable with you taking it to a LSR event. After all, when you are dead and gone when you crash on a public road having killed a number of innocent people, we are left with the public outcry against idiots in overpowered German cars. A "dark" (i.e. not well lit) "back road" (i.e. not particularly wide or with open sight lines) Doesn't sound like a very well controlled environment to me. Two recent crashes come to mind...one was four teenagers in their daddy's BMW. The driver was smart enough to try top speed out on a runway, but was dumb enough to a)do it at night and b) not to understand the physics of stopping distances. They all died. The second was a man in an S65 who was showing his wife the fantastic acceleration on public roads and crashed, killing both of them. Money and skill are not directly correlated.

Sorry to rant.

Public outcry is stupid.. the caRs dont make choices the people do..and the tires can handle it.. remember these cars are built for the autobahn.. there built to do 180 mph for good distances. .. go Germany. .American cars suck.i know..I had a viper

Congrats on the new beast

Congrats on a nice ride! A good tuner can remove the speed limitor and leave everything else stock, if you like. Sounds like you may want the full tune though

I always see the 220 number thrown around on tuned Kleeman/Renntech cars, but haven't really seen that on camera. If Speedriven is claiming 220, I believe it, their "low power" package is 750 hp

I wish I could go 3900 miles (195 x 20 gallon) in one tank.

OP, get an ejection seat if you plan to take your beast to those triple digits again. No roll cage will save you!

I too wish i could get that sort of mileage out of mine, hell, id even be happy with half the mileage.

But whats an Ejection seat gona do if its ejects him when the cars in a roll . . . . trust me you dont want to be ejected while the cars upside down.

Iv had my car upto 175mph on a track, several times within the space of about half hour. But atleast one of my tyres has a puncture repair and nearly every idiot told me it was too dangerous, but rather than just read about it somewhere i think people should get out and get more real life experience. Most people who write this kind of stuff are too prone to Health and Safety rules and go way too far into the safety zone incase they get sued. people like me usually prove them wrong.

Yeah in real life situations, an ejection seat won't do any good if you're on the ground at those speeds or flipping. I'm speaking from seeing bond in his aston martin flipping his car up, which we will never see in our life time. I don't suggest you take me seriously on any of these "safety" suggestions.

The Health and Safety rant wasnt aimed at you my friend, that was just in general to those who preach it so much that they then end up not being able to do anything in fear of hurting themselves a little.

I know what your referring to with the eject seat, and it would be a cool feature to have, but just as your referring to Bond in this case, i was referring to Hot Shots where he ejects from the fighter plane and ends up going through the bottom of the plane thats directly above him.

Didnt look as cool as Bond to me, lol.

If you are aiming it at me, as I said I've taken my to 185 on the track, and been kicked off doing it. I just think doing it on poorly lit back roads is frickin' stupid. On a track it is fun, and you are generally only taking risk with your own life.

It wasnt aimed at you either, as i said it in "general" to those to go overboard with Health and Safety. I agree that these sorts of speeds should not be done on local roads but i guess at the time the OP was the better judge of what speeds he could achieve under the circumstances.

Iv never had the pleasure of driving, or been driven, in an S65 but from what i hear you cant really tell what speed your doing as it always "feels" slower than the true speed. Maybe the OP felt he was only doing 86mph

I would agree with you only if speeding on a highway that isn't build for that speed and traffic (other drivers) not expecting you going that much faster.

In short, most busy US highways.

In Germany (and selective highways throughout Europe, France being my preference), going fast is no big deal and definitely NOT dangerous. In fact, the Autobahn is the safest place in German traffic, or US traffic for that matter.

We used to drive a Ruf Porsche Turbo (friends car) at 200+mph and it was safe, wicked fun.

That said, I wouldn't take any S-Class over 186mph for any extended period of time. It's too heavy for the tires to put a lot of stress on it, especially in curves.

Love the Diamond white S65. I wanted that one so bad but couldn't find it at the time easily. Man 186mph is crazy. I'd be a nervous wreck if I got it that fast. Fastest I took mine to was about 140mph. I'm not sure if it can get to 240 but if you do RENNTech, we can get in the 200s.

Check out my S65 that I have. Congrats on yours though! You will have fun with it.

Agreed with all that doing on a back road is not the smartest thing in the world but most of us have done at one point in time or another. Not proud of it and I have grown up now a bit.
A simple tune will take the limiter off. (I recommend Eurocharged because of their customer service and no MB tax).
It is going to be difficult to find a safe place to test the high end because you will need at least 2 miles to achieve this.
I am assuming with a tune that you would do the mile at around 170mph. It will go up very slowly after that. There is an event in Texas where you drive on public roads and the roads are blocked. I think this could be a great one to test your speed and your ***** .
If you buy top brand tires made for for high speed (Z rated with an 88W or 99Y added to it), the tires will handle without issues the speed you are trying to achieve.

we can help you with that.... Our tune removes the speed limiter and we give you more power, more torque, better throttle response, and better shifting as well.

We are at the Txt2k13 event now....mad fun! And yes, that is the Twin Turbo white UGR aventador at our shop with our two black series cars and another aventador!

My 825hp speedriven cl65 has been up to 180-very quickly. With the right tires, road and no chance of getting thrown in jail, I'm sure 200+ would not have been a prob. Didn't the CLS brabus rocket go 230mph?

Truly a great shot