MB_Forever

I've only raced 3 E55s: 2 of them at the track and one on the street. I've beat the ones on the track, but lost to the one on the street (have no idea if it was modified or not).

Josh, I know where you're going with this. I agree with you completely that it is a driver's race. However, I was just speaking in general terms and based on the data we have collected so far

ESIX3POWER

A friend of mine has an 06 E55 - We are going to take some pics of both cars side by side and in all different angles. I will post them on here when finished.
Thanks again MBFOREVER!

ESIX3POWER

Any tips on the street race ? Did you have your trans in C,S,M ?
How bout the suspension ?

juicee63

I just feel its innacurate to use the drag times. Usingthe logic that the E55 times are faster than the E63 times so the 55 is faster is silly. Those sub 12 second passes are faster than the SL65 so is the E55 faster than the SL65? Looking at dragtimes the answer would be yes.

As we have seen recently here dragtimes is not the entire story.

MB_Forever

Suspension should be on the most relaxed setting and transmission should be in S mode. M would ideally be best if (and only if) you can learn to "master" the shift points/times.

In my E63, I was able to pull a 3.9 seconds from 0-60 mph and even one time I managed a 3.8 seconds. However, in my friend's E55, using the exact same device, same street, I was not able to get anything faster than 4.1 seconds.

MB_Forever

I meant quicker not faster. I corrected it in my post....

I Like Soup

Without any emprical data, I would say the E/CLS63s would be faster than the E55. I say that because of the gearing and horsepower. We all know the E55 is quicker in the quarter mile or from a 30 punch or whatever, but in the long run, the 63's are quicker to say, 150mph (0-150 is 2 seconds quicker for the 63's)...so I gotta think they are faster on the top end.

AMGfan

oldgixxer

Not true.I lined up against Enzom 4 times at the track,2 runs were aborted due to traction issues for both of us.The other 2 runs were good,while I was able to out 60' Lorenzo's 55(he couldnt hook)by the 1/8mi he was alongside of me both times,then pulled ahead of me thru the traps.I have no doubts that if the race went for a 1/2 mile or mile he would be ahead of me by *at least* 1.5cars and 2+ cars if we ran it out the back. However,my car refuses to rev to 7000rpm in 1st gear&will always shift between 6100-6400rpm.I'm sure I could have tapped into the 11's if it did but it didn't so 12.12@117mph is all I could get vs. Enzom's several runs in the hi 11's@117-118mph

Here's the deal with the 63 vs.55;after owning both a E55&E63 & dragracing them both I can say without any doubt that the 63 is 10x easier to launch&60' then the 55.Without 500ft/lbs at 2500rpm in my 63 I can basically just stomp on the gas off the line(ESP off).In this respect less torque makes the 63 easier to launch clean(stock tires).When I tried that on the 55 the tires blew away once the car hit 3000rpm&the race was lost,or I had to back pedal the car&ended up losing time.When the 55 hooks,it's game over for the 63.Again,I can only give facts on my car vs. Enzom's car;I'm sure he will agree with everything I've said if he reads this.

So in summary,when the quickest/fastest E63 raced the quickest/fastest E55 it lost in the 1/4mi.I'm 100% positive I would also lose to 150mph as well.

enzom

Gixxer - Hate to disagree with you, but I am not prepared to give the edge to the 55 to 150 mph yet. The 55 shifts out of third gear at about 125-130mph. I don't know how it would pull in 4th gear because I have never really tried. But whatever ground the 55 was gaining in the last 1/8th at the strip, I could easily see it being reversed when the 55 hit 4th gear. The E63 is probably in 5th at that point, but it may still have a gearing advantage above 125 mph that none of us has tested yet. I just don't know. But I don't think either car is walking the other hard up to 150 mph.

Airstrip anyone?

ItalianStallion

The CLS is heavier and less aerodynamic than the E class. The 63 engine has the same hp as the 55k engine, but it has less torque.

Think about it.

oldgixxer

Well,I was only going by your 55 not the "lesser" 55's(if there's such a thing) as yours is exceptionally quick.You were pulling hard on me&passed me on the big-end.I'm pretty sure I wouldn't be able to pull you in by the time both cars hit the limiter@155.It would be interesting to see how our cars would do against each-other if they were BOTH derestricted and we had a deserted highway where we could run flat out for a few minutes...

BTW,we don't need an airport I have roads-o-plenty up here that we can do a mile or so run.But I know your reasons as to why you can't&I agree with you

CWW

I agree with you. I think over 120 or so the 55 will lose its advantage vs. the 63.

When it comes to F/I, you always wind up with a case of diminishing returns as the RPMs and speed increase, both because of air temps and because, at a certain point, the air volume starts approaching the capacity of the pump apparatus and once you get close to that, the benefit is gone.

The 63, being naturally aspirated, will still fade with speed due to wind resistance and friction etc., like any other car, but it won't lose power at anywhere near the rate of a F/I car. This makes me think it's probably quicker once you're over 115-120 or so.

ItalianStallion

If its ok with Lorenzo, I'd borrow his E55 and run a nice 30-155 with ya and we could settle the top-end debates.

I'm sure we can get a stock E55 owner who will run you dude. The prob is, most enthusiasts with 55's don't leave them stock.

oldgixxer

I'd be into that race if somebody with a BONE STOCK 55 is interested.


I can pretty much speak for Lorenzo when I say you can forget about that happening

Yacht Master

good one

AMGfan

You can always meet up in "Mexican" roads that everyone seems to film on...

ItalianStallion

Yeah but he doesn't want to do that...gotta respect his decision. "Save it for the track buddy." Again though, if anyone wants to lend a stock E55 I'll gladly test it out for you. I have no fear of the Mexican border patrol catching me

Vic55

Wait till the twisties ....


oops wrong thread


I call it equal ... each car is made just a bit different, some are stronger, some are weaker, and some are average. I know slow stock 55's and fast 63's and vice-a-versa.

Take it to Mexico like AMGfan said and duke it out---- I bet if you had 4 stock 55's and 4 stock 63's the outcome would be unpredictable since you have to involve drivers, roads, condtions, and of course multiple runs where heat soak can chime in.

I like both, owned a 55, borrowed a 63 for a few days. Both awesome cars.

jmf003

Actually that wouldn't be true, Juicee. The fastest stock SL65 on Dragtimes (Schiznick's 11.695) ran faster than the fastest E55 (Enzom's 11.775). Schiz' car was stock even though the Dragtimes entry wasn't marked with a hatchmark ("#").

Also, the slowest stock SL65 (NSM's 12.090) has a much, much lower ET than the slowest E55 (Cosm's 12.868). The median SL65 time is 11.910. I haven't calculated the median for the E55 but based on a quick glance it's going to be around 12.3 or 12.4.

So regardless of whether we compare fastest to fastest, slowest to slowest, or median to median, the SL65 1/4 mile times are faster than the E55 1/4 mile times.

The thing with dragstrips is, track prep and air density can vary a lot from track to track and day to day. Because of those variances a direct comparison of two random runs doesn't prove anything. However with more runs at more tracks on more days, those variances tend to average out so that a genuinely faster model will show faster times at the max, median, and minimum values.

FWIW....

juicee63

Remember the fastest sedan in the world is a CLS. The advantage the E has in weight can easily be mitigated..................yes in pure stock form the lightercarwith identical motor is faster but headsup I rarely lost to my E brothers E55 or E63 course there were many reasons for this. If you lined up a healthy 55 and healthy 63 across the model range the E class is faster but the CLS is more planted on a track it squats and the wider rears help the car alot at higher speeds under steering demand!

Guys hate to throw another wrench in the engine but didnt a 63 trap higher than the fastest stock 55 on the planet? course i know the answer..Go fix your brakes Mr. Gixxer!!

juicee63

We need to fix the errors on drag times.. When I check stock for stock There are several 55 times in front of the first 65 time. I agree with everything you stated in your post. There are a few 63's here that will see the 11's but it will take similar condition to what enzom ran. The 55 in California the best stock time is 12.2 vs a 12.3 for the 63 stock 4 stock. But whats more interesting is the 63 best was done at 1500 plus DA and the 55 run was near zero, this puts the two runs as nearly identical! I honestly believe as Vic55 stated, the cars are just too close to have a firm conviction either way. Enzom is a great driver think about this, he has hit a 1.61 60ft in a stock sedan on street rubber, the 55 is an amazing car and it shines in the 1/4 mile, 63 is getting better as we learn what works and was doies not. I believe the 63 gains after 90 as the car is peak it shifts out of 4th gear at 140 mph, on my dyno the car hit 142 mph in 4th which to me is where the car shines after 160 it gets more difficult :-)

juicee63

You have such a good life!!

great post agree +1000000

MB_Forever

Oldgixxer, almost everytime we lined up an E55 with an E63 (both stock of course) here in California tracks, the E63 always pulled after 80 to 90 mph. We tried this at 3 different tracks with three different elevations and three different weather conditions and three different sets of E55s and E63s.

In addition, there were some videos here posted of some runs between an SL55 and an E63 from 30 mph to about 130 mph. And as I recall, the SL55 had the jump and pulled slowly from 30 to 60, then distance stayed even from 60 to 90, then the E63 started closing the gap all the way to 130 or so.

So, I even though I think that the E55 is the quicker car, I believe the E63 is the faster one. But in the end, the performance is so darn cloes that the driver of each car will decide who wins and who loses....

enzom

Not sure what you mean by fastest, Juicee. I think you are referring to a roadcourse. If so, I really think the M5 would teach anything from AMG a lesson or two on a track. Just sayin.

The highest trap I can recall running in my car is a 118.79, on an 11.80X run. I can check some old slips when I get home to see if I have trapped higher, but I would remember a 119. I actually considered leaving my tire pressure stock at the last rental just to see if I could hit 120, but nixxed it. Lower tire pressure costs you speed but picks up time at the launch. Again - a tradeoff.