SoulBladeZA

Yes folks, it's another rapidly roaring race rendition!

So the local Scoobaru club okes were talking crap about stock WRX's and the like spanking M3's, AMG's etc. Naturally this focused the attention of a certain mr M&M and we organised a little 'get-together'. None of them pitched Scared of receiving a beating from a posers' car and a hairdresser mobile?

Anyway, M&M and I decided to do some Lego racing.

His M3 is stock engine-wise apart from the K&N filter. He also has the ACS backbox, but apart from making it sound better doesn't do much. Oh and he has an I-pod so he can watch Fast and Furious in-between races. M&M = riceboy.

This is how it went down.

Rolling in 1st

Standing start

Then we decided to switch drivers. M&M was driving the SLK with me in the M3. It wasn't my car so I decided to shift as fast as possible without snap-shifting.

Rolling in 1st

Rolling in 1st again

Would've liked to get more standing starts but we struggled to get red lights and rolling in different gears, but the SLK's auto kickdown (even in Manual Sportmode) always ended up in the M3 getting the jump. I have the video's of that though.

As you can see, the passenger in the SLK does make a bit of a difference. 80kg male. Both cars had 1/2 tank of 95 octane.

ntguru

I'm a little surprised by the results. Are you sure those are the only mods on the M3 and they aren't doing more than you think? The SLK55 should definitely have the power-weight and torque-weight advantage and the 7G tranny at least from a roll should help too. Were you manually shifting the 55? I thought I heard paddle clicks in the first race?

SLK55R

Looks like the M3 is the one starting the races ... thats why he is getting the jump. Also 80kg additional weight is no joke.

Couple suggestions if your going to be doing rolling starts like that.
First in the manual he will be in the right gear to start. You are in S mode ... it will have to change gears first(sometimes 2 gears). So my recommendation is use S mode but manually go down into the gear that you should be to start.

Have fun.

SoulBladeZA

I did do that. I tried with manually selecting the gear and with letting the gearbox do it's own thing. M3's in USA have a bit less power than the rest of the world, and he makes the same power as other M3's on the dyno.

Yeah I was manually shifting it. I've gotten it down to the exact timing for the best results. The SLK might have the torque advantage, but if were are racing to redline the torque drops off, hence the M3 having the advantage being able to keep max power all the way to the redline. The SLK is 265kW, the M3 is 252kW. The M3 loses less power to the wheels though and both me and M&M know how to wring it's neck.

The very first race where I swapped into the M3 I changed slowly into 2nd. The SLK got an immediate car length on me. In the M3 have YOU have to shift on the redline and shift quickly to keep it in powerband.

It would have been much closer minus the passenger though. As for the M3 getting the jump, we honked every time for the races or went from the lights. The M3's Sport mode makes the throttle alot more responsive though, hence giving it the slight 'jump' whereas the SLK takes a while to fully depress the throttle.

Cylinder Head

iTrader: (1)

OUCH. That hurts for the SLK owner. Surely the '63 will be better suited for such battles, but then again the new M3 is going to be no joke.

Deuce

In all the videos, the M3 is starting a little bit earlier. And also, I think he has a couple of more mods...maybe. The SLK should have taken it out even with a few mods.

Jspeed

I suspect that M3 has either been chipped or has a close ratio differential. Don't think a 'stock' M3 should pull like that.

egxpimp

Sweet videos, it puts another smile on my face. Darns i want a BMW M!

Falco

No doubt about the results of the videos!!! Weird though as the SLK55's acceleration times as tested are significantly better than the m3...0-100KMH SLK=4.8 M3=5.2, 0-200kmh SLK=16.8 M3 18.1

MJ1133

I think those times are for an M3 cab? I know the coupe got 0-60 in 4.8

dsb

Here's another suprised viewer. Was that a CSL? I don't think it should pull on the 55. I'm not sure if mod's were the difference or just a passenger. One thing's for sure, I don't think you should be shifting. I would do as Jesseliu suggests. Leave it in 'S' mode and if it's rolling, be in a gear that allows you to rev around 3500-4000 rpm. Then jump on it. Otherwise, that small kickdown time will lose you a car length. In addition, I would simply let the tranny changed gears on its own.

transferred

Christ get rid of the photos already. They're very nice but they take up too much space and would be suited to another kind of forum

Falco

no...those are coupe times...notice 0-100kmh or 0-62...that additional 2 takes .2-.3 or so...

egxpimp

Perhaps because his car is different since it does not have to have all the US restrictions we have? hmm and every engine is different so you NEVER know... (The M can be pumping good power while the 55 may not)
I know I can talk about experience that I have seen with my own eyes.... a friends transam/firehawk ( don’t remember anymore since he totaled the car ) he beat an 04 vett with his car. He only had intake- and he won 4/5 runs--I was STUNNED....I was there and I thought the world had gone

p.s. I remember his car being automatic, and I believe the vett was also automatic, so no ‘driver ‘ involve

Yellow R1

That is becuase he's driving the SLK with the emergency brake on.

There is NO way, stock for stock, an SLK55 is going to get pulled by an M3. Period. Fangio here bogged the 55 on multiple occasions. I think he must weigh 400 lbs as well. The SLK has more Hp, signiicantly more torque, weighs the same, & has better gearing, YET......this 12.7 sec car gets PULLED by a 13.5 sec Quarter mile BMW. Err, no.

I will gladly thrash anyone's stock engined SLK55 against any stock M3 (my car isn't stock). An avg M3 traps at 105 - 106 mph...the avg SLK55s at 110 -111 mph (its not close gang). Trap speed is a true indication of how fast a car is & the BMW is consistently outgunned at the track.

In fact, lets strech it a bit. Lets take a 1st time SLK55 NOVICE & put his time up against a guy that got the fastest time & trap speed in the ENTIRE country. Guess what. The M3 STILL lost.
Here we go: The fastest M3 time & trap in the entire country was 13.06 trapping 108 mph http://www.dragtimes.com/results.php...arch+DragTimes

1 guy (Dinko, who had his FIRST time at the track ), ran a 12.7 sec Quarter (aligns with mag reviews & physics on the planet earth ), trapped 110mph. http://www.dragtimes.com/results.php...arch+DragTimes

There ya have it Gang. Real world results of the AMG posting faster times & trapping at higher speeds (with a NOVICE behind the wheel).

What we have here in these little videos is an emergency brake left engaged on the SLK, or linebackers riding in the SLK while 30lbs Munchkins drive the M3.

-Matt

egxpimp

^^ the time you posted was from a 1997 BMW M3 E36 not E46 correct ?

MB AMG

Other than keeping it in M mode to keep it in the desired gear, I would switch it in S mode and let the tranny shift by itself during full throttle.

AndrewAZ

Well an M3 can run a 12 second 1/4 mile also (check out matthews run he did it a few times launching at 5,500 RPM) if you drive it right.. The big problem with the M3 is getting off the line since the power does not start until over 4,500 RPM. You can have a car that off the line will smoke another car but in a rolling race will get beaten, example the STI's will beat an M3 off the line but from a roll the M3 will kill it. The M3 is lighter and from this rolling race sounds to be in the right RPM range so it is possible that the M3 will take it off the line but also factor in the weight of the passenger in the SLK 55, whats the old saying 10lbs = 1hp.

PerisanGodFatha

i raped a Comp Package M3 2006 iN My 2005 CLK500.....the m3 you raced was deffff MODD`ed up...i pulled on the M3 everytime...now either my car is just realllllly fast for a Clk500 or.....? now i think my cars just fast for a clk500 because it dosnt feels way too fast...ive raced 5 or 6 diffrent M3`S all at diffrent times with diffrent drivers and Have walkkkked All of them

Pitzi

Nope thats a normal E46 M3 with ZCP wheels. Wanna see what a CSL does to an SLK55AMG? (Both with passenger)

It ain't pretty: http://videos.streetfire.net/video/7...7d12e53f7f.htm

kostas86

Stock M3 stands no chance against a SLK55.
I have drove both and the M3 doesn't stand a chance.

Yellow R1

Yes, that is actually a good point but it does not apply in this instance (and the STIs get pulled on a roll due to the additional parasitic drag of 4WD vs 2WD & its "barnyard door" coefficient of drag - it has a large frontal area & that wing don't help much either).

-Matt

Yellow R1

Your link doesn't work & even if it did, we have zero idea of what mods (if any) were done to either of the cars. Use official (ie a real track) statistics, not two monkeys in an uncontrolled environment racing one another (we don't know driver skill, what car mods, etc may have been done on the cars)?

And, pls pay attention to the drag strip track link I listed above? The big bad M3 CSL ran a 13.2 Quarter....it would get pulled by an SLK55.

I raced an M3 in my RX-7 - that thing got absolutely toasted (it was not as quick as an SLK55 - which BTW, I have also raced in the RX-7). The M3 was about as quick as Camaro SS. The SLK55 was about as quick as a new C6. This would tend to support physics & published acceleration statistics.

The M3 is a nice car & there is more to life than straight line acceleration. However, it just isn't as quick as an SLK55 in this particular metric.

-Matt

Carl Lassiter

There is inly 30 bhp difference, and the 500 has a lot more torque but a properly driven M3 is faster in a straightline than a CLK500, from stop or on a roll.
As regards the twisties its not even close. The M3 is about so much more than pure hp.

Carl Lassiter

+1. Take a leaf out of blahzayblah's book and include your car and actual women you know. Now that is a proper sig!

Euro M3 hits 100 in 11.5secs. That's beating a cLK500. SLK55 is a pocket rocket however...
m3 csl can run quarter in less than 13.2. That's a very slow example.
It's got 255bhp/tonne and wears racing slicks so is for sur in the 12s.
I'm not doubting the data, just saying that that's an isolated example