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Hey just found this video on youtube, and i thought id post it up on here for the slk 55 amg owners as im one myself. To be honest i was really suprised with the outcome as both cars were said to be standerd.

Enjoy

 

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Can someone translate the French please? All I understand was something about a slight advantage.
 

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There's more to this video than what we are seeing I believe.

I love both the SLK55 and E92 M3 but there is no way that video is showing a stock SLK55, or at the very least the E92 M3 wasn't pushing it all the way.

SLK55 ~3500 pounds | 5.5L V8 | 360 HP | 376 TQ
M3 ~3700 pounds | 4.0L V8 | 414 HP | 295 TQ

This video was from a roll so it eliminates the issue of racing from a dig.

Worse case scenario these two machines should be really close to one another 1 to 2 car lengths at most.

Someone needs to translate the french I think the clues lie in the words. :tu:
 

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I always find these horn races futile. It is seldom a true measure of actual performance as much as it is ability to anticipate. An SLK55 has no chance of beating my SLK350 in one.

That is not bravado, but is fact. (I plead the fith.) I will explain the how, but the why is simple: an automatic cannot hide it's revs and be in the right gear while a manual can.

(PS: I will not do this on public roads, the track is the only place to prove one's worth.)

If I hear a clever 55 driver in the right gear with the right revs, I am going to smile and wave them off, and they will not get the opportunity to win. Only fighting battles you can win and all that.

If they are loping along, then let them learn the lesson:

1 MPH more speed is 1.5 feet a second. I increase by 1 or 2 MPH before the third horn beep, this is almost undetectable. Clutch in so they do not hear the RPM, then blip and dump right at the third beep (which due to people's subconscious pacing is easy to anticipate) to make the car leap. If you are honking, delay the thrid beep to screw up their preperations.

Now, the 350 has 10 or 15 MPH before the auto trans in the SLK55 hooks up and the 350 has put about 25 feet of distance on the 55 by the time the 55's power comes into play. That distance will take the 55 about 37 more MPH to make up over the 350's current higher speed to catch up, and with the 350 steadily increasing speed, and increasing distance, even if at a slower rate, the SLK55 will have to make great strides.

Before the 55 gets almost even with the 350 (in my expierence up to the 350's rear bumper,) the 350 has reached 100 and can brake and claim victory.

It's a cheap shot, admittedly, but it just goes to prove what Mickey Thompson did a long time ago: a cleaver driver who knows how to bend the rules will be the one who wins. Something I do not usually practice as I prefer honor to glory.

Back to the subject: a properly launched 55 from 30 MPH should have no problem accelerating away from an M3 at speeds under 100 MPH, as the torque numbers would accelerate the weight faster. Horsepower stretches the top end, torque throws you out of the gate.

A dual clutch (not SMG) or a manual M3 from a standing start would be hard for the 55 as the 55 just does not have the axel for it, and has that automatic. An automatic or SMG M3 vs the SLK55, that would be close, I would give the 55 the nod there.
 

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Interesting comment Byron and I agree, however not sure if 350 would take that much Lead before 55 passes over.

What would be nice to know is what is the right gear and rev for an slk55 to start at if it's a 30mph or 60mph rolling start range. Plus at what point to change the gear and maintain the rev (I.e always keep it between 4000rpm to 6500rpm to get max torque).
 

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Interesting comment Byron and I agree, however not sure if 350 would take that much Lead before 55 passes over.

What would be nice to know is what is the right gear and rev for an slk55 to start at if it's a 30mph or 60mph rolling start range. Plus at what point to change the gear and maintain the rev (I.e always keep it between 4000rpm to 6500rpm to get max torque).
[Cough...] Mine did... [...Cough]
 

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In racing and war, there's a saying: If you're not cheating, you're not trying hard enough...

When winning is the only thing, winning is the ONLY thing.

Having said that, I don't advocate cheating. I'm just sayin'... :biglaugh:
 

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I guess what Byron is saying is, that unless he can get himself a head start, he aint playing.
After all, it's only fair: 2 more cylinders, 2 more litres of displacement, and probably 100 fewer lbs. of driver. If I can't even up or get an edge, why bother?

So is it really cheating?

I do not cheat in racing. I do not modify my car then try to slip it into stock class as many do, etc.
 

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....What would be nice to know is what is the right gear and rev for an slk55 to start at if it's a 30mph or 60mph rolling start range. Plus at what point to change the gear and maintain the rev (I.e always keep it between 4000rpm to 6500rpm to get max torque).
What is Byron's opinion on this? Gear and rev recommendations/observations for a rolling start at 30mph? 60 mph?
 

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After all, it's only fair: 2 more cylinders, 2 more litres of displacement, and probably 100 fewer lbs. of driver. If I can't even up or get an edge, why bother?

So is it really cheating?

I do not cheat in racing. I do not modify my car then try to slip it into stock class as many do, etc.
No offense intended, and i apologize if any was taken. Just trying to be funny...
 

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yeah i watched that video last week, theoutcome was a bit odd to me so I asked the guy if the SLK is stock and he said yes.....
 

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I don’t know Byron’s opinion, but I suspect he would be very surprised at the stump pulling torque the 55 has at very low rpm :burnout:
It has a lot of torque, that is true. Given the choice, I will always choose torque over horsepower as I do not live on the autobahn nor use a car for high RPM track only.

There have only been three cars that have shocked me me with having almost too much torque:

1. Our '94 S500 4-valver put out 314 HP and 396 lbs. feet of torque, and throwing it into "B" instead of it's usual second gear start, it would make that 5,300 lbs. car stand up and press you back in the seat like nothing else.

2 & 3 The Corvette ZHZ and CLK63 Black I drove last month. While the Corvette had a lot more rear grip, they both felt like a sneeze would result in enough foot pressure change to break the car so loose you would be kissing cement before you could wipe.

The SLK55 does not shock me because, although it has a lot of torque, it is very useful and easy to control. The throttle isn't touchy. I kept up with the SLS through the autocross by drifting the SLK55, although it has a lot of understeer, you can really control the rear end with the throttle without it getting scary like the CLK63 BS.

I wouldn't say I was surprised at the SLK55's torque, I think the word impressed is more appropriate.
 

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Interesting comment Byron and I agree, however not sure if 350 would take that much Lead before 55 passes over.

What would be nice to know is what is the right gear and rev for an slk55 to start at if it's a 30mph or 60mph rolling start range. Plus at what point to change the gear and maintain the rev (I.e always keep it between 4000rpm to 6500rpm to get max torque).

I actually have a program that will tell me, along with optimum shift points, etc. I will fire it up and let you know.

Yes, you can actually put that much distance, as I said, every 1 MPH difference is 1.5 feet. During the rolling grid starts we did, a couple of guys challenged Skippy as to the cars being equal because I would pull away from them and put a car length on them and yet I weighed 100 lbs. more. Part was due to my anticpation of the start, and the other part was due to the fact I shifted 200 to 400 RPM sooner, keeping that truck like NEON 2.0L in the torque. (Skippy says shift at 5,800 most would do 6,000 thinking more was better, I always changed up at 5,600.)
 
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