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2007 SLK55 AMG Iridium Silver
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Discussion Starter #1 (Edited)
EDIT: oops,, i meant snapshots

i did about three runs in the freeway. i was getting SO much wheel it wasn't even funny.
i was using the escort g-timer GT2 which i just received today. i put the car in S-mode and pushed the throttle half way at launch to full throttle after about a second.
my best runs are in the picture below. that was with very little wheel spin at start. my other two runs were a disappointing 4.95 seconds, and 4.98 seconds from 0-60 mph. those runs were with wheelspin that almost made my car spin out of control. the roads here are very rough but not bumpy. it's hard not to get wheel spin with rpm over 5000.

car and driver magazine claims they got:
C/D TEST RESULTS
ACCELERATION Seconds
Zero to 30 mph: 1.6
40 mph: 2.3
50 mph: 3.2
60 mph: 4.3

those numbers seem possible if i didn't get wheelspin or got minimal wheelspin at start. i would like any tips on getting less wheelspin at start, tips for improving my runs. maybe new tires? well here's the pics:) hope to do better next time
 

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Keep your hopes up, your not bad for a beginner at least you got less than 4.9 seconds.

I beleive that its possible to go under 4.5 seconds.
 

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Discussion Starter #3
alroumi said:
Keep your hopes up, your not bad for a beginner at least you got less than 4.9 seconds.

I beleive that its possible to go under 4.5 seconds.
have you tried any runs of your own? if so , were you able to get under 4.5 seconds??
 

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Are you brake torquing (flooring the brake while you press the accelerator right before launch? You need to have ESP off for sure. New tires will help, but if you get bigger wheels to go along with them, you risk increasing unsprung weight and it will actually slow you down.

What kind of tires are you running? You should probably run on at least Michelin PS2's or Good Year DS-3's for better traction.
 

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SLK55 (2006) C36 (1995)
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try wider tires on the stock wheels. agree on ESP off. Also helps to warm the tires up a little bit, some hard driving, and then just hold the brakes slightly and spin up the tires, then roll forward, and perform your actuall launch.

I don't know if brake torquing helps, for me it makes the tires spin even longer....ask Tom/tslick what happened when i raced his SLK 32....

R/T runs their tests on essentially race track grade roads, it'll be hard to find roads as sticky as they do.
 

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Discussion Starter #6
slktyperice said:
Are you brake torquing (flooring the brake while you press the accelerator right before launch? You need to have ESP off for sure. New tires will help, but if you get bigger wheels to go along with them, you risk increasing unsprung weight and it will actually slow you down.

What kind of tires are you running? You should probably run on at least Michelin PS2's or Good Year DS-3's for better traction.
no, i am going from idle to throttle, no brake torquing at all. (wouldn't do that to my car). if i have ESP off, the car wouldn't even move foward. it'd be spinning wheels like mad. the roads here in the freeway are quite old, with alot of sand on them.
yes, new tires would help as i am running the stock tires that come with the 55amg (i think pirelli's-?). i have about 4000 miles on these tires, and i dont know when i should upgrade to the new michelin ps2's.
 

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MBSLRWANABE,

You need to practice starting the car with ESP off. I'm not sure about your car, but on my car ESP will actually back off throttle when the wheels start spinning, and then when you regain traction, the power doesn't come back quick enough...i suppose you need to find cleaner roads to do your runs? A little brake torquing really won't hurt your car, just bring it up to 1500 RPM or so, you won't need to stand on the brakes or gas. Your car will experience much greater loads on both the brakes and driveline under normal driving.
 

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cyberdrakon said:
MBSLRWANABE,

You need to practice starting the car with ESP off. I'm not sure about your car, but on my car ESP will actually back off throttle when the wheels start spinning, and then when you regain traction, the power doesn't come back quick enough...i suppose you need to find cleaner roads to do your runs? A little brake torquing really won't hurt your car, just bring it up to 1500 RPM or so, you won't need to stand on the brakes or gas. Your car will experience much greater loads on both the brakes and driveline under normal driving.
Agreed. Just takes a little practice. You'll launch a lot faster. Once moving, you can't floor the throttle. You have to ease into it. It'll take a little time but I'd love to see your results afterwards. I don't own a timer but would like to try it out.
 

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Discussion Starter #9
cyberdrakon said:
MBSLRWANABE,

You need to practice starting the car with ESP off. I'm not sure about your car, but on my car ESP will actually back off throttle when the wheels start spinning, and then when you regain traction, the power doesn't come back quick enough...i suppose you need to find cleaner roads to do your runs? A little brake torquing really won't hurt your car, just bring it up to 1500 RPM or so, you won't need to stand on the brakes or gas. Your car will experience much greater loads on both the brakes and driveline under normal driving.
i suppose i do need to experiment a little more. i cant find a clean road in my area other than the one i used for my run. speed limits and the fact that this car is loud, would make it a police-magnet. next time i will try on a smooth road surface (if i can find one), with ESP off and hopefully i will post better results next time.:) thanks for your input
 

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MBSLR Wannabe, Unfortunatley I havent tried launching my car. But in 2-3 months I will consider the escort timer.
 

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Discussion Starter #11
alroumi said:
MBSLR Wannabe, Unfortunatley I havent tried launching my car. But in 2-3 months I will consider the escort timer.
hope you will able to post some results soon . btw, the escort g-timer seems pretty accurate and is a pretty good piece of machinery
 

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MBSLRwannaBE said:
hope you will able to post some results soon . btw, the escort g-timer seems pretty accurate and is a pretty good piece of machinery

thank you, how much does it cost btw?
 

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Discussion Starter #13
alroumi said:
thank you, how much does it cost btw?
there's two versions the GT1 and the GT2.
the GT1 costs $100 ,but only stores one run total,
the one i have is the GT2 which costs $180, but stores the last 10 runs, plus a better display and a couple of exclusive features.
i believe you can only get them on the escort homepage or ebay
 

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MBSLRwannaBE said:
there's two versions the GT1 and the GT2.
the GT1 costs $100 ,but only stores one run total,
the one i have is the GT2 which costs $180, but stores the last 10 runs, plus a better display and a couple of exclusive features.
i believe you can only get them on the escort homepage or ebay

Thank you very much, I will make sure I will order them within a month or two.
 

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Discussion Starter #15
alroumi said:
Keep your hopes up, your not bad for a beginner at least you got less than 4.9 seconds.

I beleive that its possible to go under 4.5 seconds.
alroumi, i tried some runs today near my friend house, and got two very good runs with absolutely "zero" wheel spin.

i tried with the top up and down.

with the top up: 4.48 seconds with two people and a load in the trunk.

with the top down: 4.65 seconds 'wit the same.

i think with just me, and no trunk load (removing spare tire) 4.3 seconds seem extremely realistic, with the car in "stock" condition.

i will post screenshots soon,
 

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MBSLRwannaBE said:
alroumi, i tried some runs today near my friend house, and got two very good runs with absolutely "zero" wheel spin.

i tried with the top up and down.

with the top up: 4.48 seconds with two people and a load in the trunk.

with the top down: 4.65 seconds 'wit the same.

i think with just me, and no trunk load (removing spare tire) 4.3 seconds seem extremely realistic, with the car in "stock" condition.

i will post screenshots soon,
Nice runs, car and driver got 4.3, which I think it's the best you can do, 4.48 is very close, like you said, with one person and the car emptied, you should be able to get very close.
 

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Discussion Starter #17 (Edited)
Ynot said:
Nice runs, car and driver got 4.3, which I think it's the best you can do, 4.48 is very close, like you said, with one person and the car emptied, you should be able to get very close.
thanks, i knew MB USA quotes the SLK55's at 4.9 seconds because they dont wanna admit that their lowest priced AMG (as of now) is one of the quickest from 0-60.

notice how they claim faster 0-60 times for their more "expensive" AMGS:

some examples:

1. 2007 SL65 AMG
MSRP $186,775 : 0 - 60 mph in 4.2 seconds

2. 2007 S65 AMG
MSRP $182,275*: 0 - 60 mph in 4.2 seconds

3. 2007 CLS63 AMG
MSRP $92,975*: 0 - 60 mph in 4.3 seconds

4. 2007 CLK63 AMG Cabriolet
MSRP $89,975*: 0- 60 mph in 4.5 seconds

5. 2007 ML63 AMG
MSRP $86,275*: 0 - 60 mph in 4.8 seconds

6. 2007 SLK55 AMG
MSRP $63,275*: 0 - 60 in 4.9 seconds

i'm sure that the SLK55 is faster than the ML63 from 0 - 60 cuz of the power/weight ratio. they just cant let people who wanna buy the ML63 see that :surrender:

i believe in the in the UK mb site they show this:
"SLK 55 AMG

The ultimate powerhouse.

5.5-litre V8
Speedshift 7-Speed automatic transmission
0 to 62 mph in just 4.5 seconds "
 

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I think it's a bit stupid really for them to say the SLK is this slow... I don't think someone who's looking at an ML63 would be crosshopping an SLK. They're just SO different cars. If you want an AMG, you'll get the cheapest one, doesn't matter if it's the SLK and if it's slower then the rest (or has a slower 0-60 time mentioned by MB).

However, if you have the cash and you can go for a more expensive AMG, then it doesn't matter if it's slower then a 2 seater roadster like the SLK. If they want a people carrier, they'll get the S, E or ML class for sure. If they have serious cash, they'll take the SL, even if it's more expensive and maybe even slower then an SLK. They're ready to pay the money.
 
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