blilley18

I've seen a bunch of youtube videos with the C63 going around the speed limiter of 155 or 186 mph and I saw this one where the guy was apparently going 200 mph. http://www.youtube.com/watch?v=S2kBysQT7Dw
And I was thinking what the potential top speed of the C63 is without the limiter or such. Any guesses? I'm thinking maybe 200+ but I don't know specifically what the limits of the transmission are.

azadian22

I'm not sure what you are asking, do you mean a stock C63 with just the limiter removed and no tune...I'm no expert but I don't think the are cars will do 200 with the stock ECU.

blilley18

I think with P31 and delimiter, we might have a chance.

olszowa12

My car is delimited - stock ECU - I hit 186mph (298 km/h).

In this thread Josh posted he hit 195mph. That's the highest top speed I've heard of until now.
https://mbworld.org/forums/c63-amg-w...yesterday.html


The video seems legit though. In the comments section he says

118E63

no way in hell is a stock C63 hitting 200mph,with the governer removed..you will need some major additional HP to acheive that number

Muskoka_AMG

Maybe downhill, downwind, and getting rear ended by veyron.

118E63

lol!
then it'll hit 250mph

andy_c63

I think the stock tires are rated only up to 186mph. Isn't that a concern?

Dads C63

These cars tuned with some headers will run over 200mph. There are a couple overseas that have seen north of 210mph. They are amazing machines!!! Be safe!

blilley18

I really don't think so because almost everyone, on the forum at least, gets different tires once the originals are worn out.

FastDonzi

i think when they speed rate a tire,lets say to 186,it must sustain that speed for a certain amount of time.now if i was doing a run or two to about 186+ for a few seconds,i wouldn't be too concerned.now,anytime you decide to run that fast their are many factors you need to take into consideration,and one is your tires and their condition.

FastDonzi

yours is an amazing machine my friend.I'm sure you're over 200 easy.now,I'm not too familiar with drag radials.do they have different speed ratings?

ygtk09

i hit 152, and it would have kept going, but it is pretty scary at that speed.

bhamg

Some friends were planning a top speed event here in SoCal at an airstrip for Oct of this year, but it didn't pan out. That said, I spent a little time figuring out how fast I might be expected to go in 1 3/4 miles of acceleration, looking at verified top speeds for a variety of cars. My best guess is a true (not speedo-indicated) speed of 192mph min, 194mph max for my RENNtech-tuned/MBH-headered car, so I suppose that might be consistent with what Josh says. I don't foresee getting close to 200mph though...too much wind resistance.

FastDonzi

i just checked the drag coefficient on the c63.its .32.so is the m6 and m5.and I've heard of those pulling to 200+ with a couple of mods,basically making the same power as a tuned c63 w/headers.so,is it because of gearing?now, if we had the drag coefficient of the the e-coupe we would be golden.it's down to .24.

HIRO63

In Japan we never have that much room to hit 320km or so but how long does it take to hit that number?

Does anyone did like 0-100km, 0-150km, 0-200km, 0-250km, 0-300km? Or rolling from 100km- 250km,etc.

My topspeed with mine is 270km. It needed good open road to hit this number.

bhamg

A real 200mph is tough to reach. I recall a road test where Indy driver Didier Theys top-ended a 2009 ZR1 (638hp, 3364#) @ 200.4mph, a 2008 599 GTB (612hp, 3975#) @ 201.5mph, and a 2008 GT2 (530hp, 3270#) @ 199.8mph. So, I tend not to believe most of these 200+mph claims.

CSIXY3

Hey guys,i just brought a c63 amg and i am thinking of using power chip to tune my ecu.
Can you please give me some info on power chip? are they reliable? thanks

KEMA

I hit 310 km/h (192.6 mph) in 6th gear (digital speedo) driving on the German Autobahn. At this point the car is picking up speed extremely slowly but I guess given enough space I could've picked up another 10 km/h.

K2 tuning + Kleemann test long tubes. Dyno rated at 570 FWHP.

Ken

Palladin

Exactly. Stock, no possible way, not even close, period. Heavily modified, maybe, but not easy. There are some very, very fast cars that can't crack the 200mph barrier. As much as I love my car and this forum, some of you guys have a vivid imagination when it comes to the real world performance capabilities of a car with <500hp and a curb weight of almost two tons (stock). Modded cars don't really count as far as I'm concerned since they are all different and I've seen way too many videos of the latest 700hp GTR, 800hp 911 Turbo, or 1000hp Viper/Vette/FordGT blowing up on it's "top speed" test run.

basil98

Hi guys,
I have question about the delimiter, how can I remove it my car hits only 150 mi and with the power of my car I wanna test its limit
I drive 05 Mercedes E55.
thanks

118E63

jafores

At the time of this shot I had an upsolute tune that only gained 5 WHP it did do the delimit though



This was the Dyno at the time



Here is the video of my best speed run todate

http://www.youtube.com/watch?v=xBHSIHIu7OE

118E63

and exactly how accurate is the OEM speedo at an indicated 195mph?

jafores

My understanding is that US federal standards require that speedo accuracy for cars sold in the US be no more than 5% and never less than true speed. while EU standards require no more than 10% and never less than true speed. On a different car (same US version C63) my friend said he saw 312KPH on the dig speedo while his Garmin Nuvi showed 302 KPH