SGC

For anyone who is interested.



http://www.dragtimes.com/Mercedes-Be...slip-4783.html

C klass 320

congrats 1.8 60 ft you got some skill
sure the drags helped out a lot
great times awesome driving

enzom

Great job. Nice trap speed.

SGC

Thanks.

Launched soft (loaded converter to 1000-1200 rpm only) to avoid blowing run with wheelspin. Crowded track. Had to make run count, since generally get 1-2 runs per night by the time I get there.

BoBcanada

Wow awesome time, are you stock?

SGC

Thanks.

Drag radials and K&N filters only. Stock everything else including pulley and ECU.

Jakpro1

Hey SGC.... AWESOME TIME DUDE!!!

Questions....On the K & N....how many miles do you think you will get before you have to the "oil" thing on them. You ever oil yet...people scaring the hell outta me online "oil them perfect of you are gonna blow itttttt"

Also, on the launch. So just about half throttle to get over start of roll, then hammer it......just trying to get your process on launch. You obviously got it down man. Can you walk us through it one more time in specifics. It would really help us a lot on the strip and at the lights.

Again...

adx

Great time and trap speed. I wonder how much better you would have done if you had a LSD?

SGC

Thanks.

With respect to the K&Ns, I have had them in the car for approximately 4000 miles. In the past, on other vehicles, I would clean and oil the filters every 5000 miles. Never had any engine problems due to oiling the filters in the past. Pretty simple, shouldn't have any trouble.

As to the the launch, this is what I do:

Drive around the water box;
Heat tires with a brief burnout;
ESP off;
Comfort suspension setting;
Sport Mode - Transmission;
Pull to the line;
Load converter to 1200 rpm (probably could go higher);
On last yellow, release brake and push throttle 1/4 of the way down until feel weight transfer and then push to floor; and
Let transmission shift itself.

SGC

Thanks.

I don't think the LSD would have helped much as car hooked up pretty well. If anything, a better gear ratio (i.e. low 3.00 series gear) might help.

Vetluver

How much pressure do you run in your drag radials? And have you run the quarter with stock tires? If so what what your time?

One other thing, who offers different rear end ratios for the E55?

Thanks

SGC

I ran 28 lbs in the drag radials and launched at low rpm against the brake (about 1000-1200). Probably could have gone higher, but was first time using them. I have run 12.1s @ 116 on the stock Continentals with a 1.9 short time and similar launch technique.

Regarding the rear end ratio, I haven't looked into the issue.

Lexani

Awesome time, considering Lamborghini Murcielagos' clock in around 12.3, and I have even heard the almighty Ferrari Enzo at 11.9, excellent time!

AMGfan

Great time...what does comfort mode on suspension setting give you versus S1 or S2 or does it even matter...

Happy Holidays!!!!

SGC

Thanks. I also was susprised to run low 12s with a 4000 lb sedan.

SGC

Thanks.

I figured that the comfort mode would allow the front suspension to lift more on the launch to transfer weight to the rear wheels. Honestly don't know if it does.

enzom

Right idea, but the transfer would have more to do with softness of the rear suspension than the front. It used to be that the guys with adjustable shocks would set their fronts to the stiffest setting and the rears to the softest to allow the rear to squat as much as possible. Who knows if front stiffness/softness really made a difference.

I can't remember what setting I kept my E55 in when I ran, but it was probably comfort.

Lexani

Was that you in the video?

Fabulous E320T

what tyre/size do you use?

enzom

Lexani - What video??? I don't think I've been in any videos, but one never knows.

SGC

275/35-18 BF Goodrich drag radial. 0therwise, stock 265/35-18 Continental.

SGC

In the past, on an older muscle car (i.e. 70 Chevelle SS454), I installed 90/10 shocks in the front suspension. Its my understanding that 90/10 means that the shock will require 90% of the force to compress and only 10% to extend.
90/10 shocks allow the front suspension to rise quickly on the launch; however, the valving in the shock is such that the shock will take a longer time to compress thus allowing the weight to remain transferred to the rear wheels. To keep the rear wheels planted, I used 50/50 shocks on the rear axle with an airbag in the right coil spring to pre-load the suspension. That set up improved my 60' times considerably (from 1.8 to 1.5 - 1.6 on M&H Racemasters). With 90/10s, the car rides like sh*t on the street, since the valving is for drag racing only.

With the sophistication of the Mercedes suspension, the only thing I knew to do was hit the button for comfort, hoping the difference in valving would allow the front to rise and transfer the weight.

Lorenzo can you post your time slip? What was you mph at the 1/8 mile?

enzom

The print is too light for my scanner, no matter how much I play with the adjustments. I need to enhance it on the office copier and try again. But here are the details:

R/T: .202
60': 1.881
330': 5.149
1/8: 7.828
MPH: 90.65
1000: 10.137
1/4: 12.071
MPH: 116.85

Lexani

You know, one of you E55 owners, need to go and find one of those teenage hot shots in a 11-sec Cobra, and teach them a lesson. I'd do it- but, well, there arn't any 11-secs around here but my SL6, oh well, keep at it.

DerekFSU

Have only run into one 11 second cobra (03' with nitrous running an 11.95) and showed him the power of E. Hey came up to me afterwards and said," I saw that 4 door Mercedes and figured this would be easy. Then the light turned green and I said, ""Where the heck is be goin'""."

Other than that, all the cobras around here are in the 12's.