Ali_E55

i am going this wednesday to the drag.

any recomandations

i got Quaife LSD installed and Nitto Nt05 275/40 R18 on OEM 9.5" wheel.

however my fron wheel ar 9" 265/35 R18, should i put the stock fron ones back whch ar 8" 235/40 R18 ?

ane sets please to help getting a good luanch.

thanks

03'55AMG

so to be clear, i have an 03 W211(E55AMG). put the car susp. in cmfrt and trans in s/d and have it raised?

Bramage

I've been once.. however, here is what I found works best:

S for trans and suspension in comfort, but not raised. When you hit 80, the car will lower if raised, and some say the car drops a little power while it lowers. I dont think that is the case, however you have better aerodynamics not raised, and in comfort, you will transfer the most weight to rear wheels on launch. Just my 2 cents.

Moedy

how do you do a proper burnout in the water box before you run? do you have to switch to dyno mode then quickly change back?

Evolved8

Question, If I raise the car (to accomidate the D/R's) after 80mph wont it tuck down (via star) possibly causing a huge problem with tire side wall impacting rear quarter pannel fender well?..... I need to know this because running the D/R's as it is now is VERY close.. Thanks in advance!!!

DAGREEKNYC

ive been trying to figure out how to stop that @ the track and yes you will get rub with Dr's

Bramage

The car will drop and if it rubs at the normal level, you will encounter this at around 110 MPH so be careful. I was rubbing ever so slightly with my DRs at Famoso. I ran as described: raised to get out of the box, and then it would drop. I just got new spacers for my drag wheels, and there is no more rubbing. Tested Friday night

You will rub more on the launch since due to weight transfer. Once underway, your car will ride more level, so this works ok if you are just trying to prevent the issue at launch

Evolved- How much are you rubbing? There is some room to roll the fenders, the other options: If you are running a spacer, get ones that are 3mm - 5mm thinner. If you are not running spacers, depending on the wheel, a machine shop can usually mill 3mm safely off the backside of the wheel. Just make sure you use a machine shop that does wheels because this needs to be done right

rdm20fan

Hey Guys, I have a question about the burnout. I'm running BFgoodrich drag radials on my 05 E55, and I can't get the Trac control (ESP) to allow me to do a burn out for more then 2 or 3 sec's The computer shuts me down. The tires start to spin, and just a few secs in, stops me. I'm watching videos on youtube, and seeing these big smokey burnouts. How are you doing them. I think I can get the tires to stick alittle better with better heat.
Is there a way of turning the ESP off completely that I don't know about?
Thanks, Bob

320 dreamer

i would like to add a simple trick to avoid confusion at the line. before i get to the track i take a post it sticky and write the routine i use at the line. this is stuck to my steering wheel so im looking right at it. ie:
1 heat tires in manual and 1st gear
2 turn on dashdaq to record
3 ensure car is in manual and 1st
4. turn off a/c and windows up radio off
5 wheels straight
6 helmet gloves on
this is all done before the first stage light. now in my mind i have checked each off and can concentrate on lights and launches. and finally i never look at my competition. takes away from my concentration
this way when my adrenalin is up and im staging against what i know is a faster car i wont make a silly mistake and lose before the race ever starts! if he misses an important step it gives me the edge to score a win!

GRAFH

Yes, hit the button.

Juggernaut23

Quote:
Originally Posted by ^E55^
thank you bro. i never know the computer will shift automaticly in 1th gear in auto mode. i will try tomorrow . by the way, when i am rolling, which mode should i use sport or manaul? airmatic in sport 2 or comfort?

cheers!

Yeah, in sport or comfort mode it will upshift for you at redline. In manual, you'll bounce off the rev limiter.

When racing from a roll, again use sport mode but hold the downshift (left) button down for a while and it will downshift to the optimal gear before taking off. If you don't downshift before the race starts you will lose precious time when you floor it and the car takes it's sweet time downshifting.

Manual mode is never fastest for straight line racing ... it's probably only really useful for road racing where you don't want the car automatically upshifting for you at inopportune times.

Not sure that airmatic setting matters for a roll-on type race. You want it in the softest mode when launching from a dig to get the weight transfer to the rear. The same probably applies for the roll-on, but I doubt it matters that much.
__________________

Anyone got anymore tips for racing from a roll? Like what is the perfect starting speed (60MPH) and starting gear for E63's? I also assume suspension should be in comfort and trans in sport? I dont think my E63 is fast at all so I would like to know exactly where my sweet spot is to give me the most edge.I just have secondary's/resonators removed with X pipe and some K&n filters and lowered about an inch.
Please advise on what is optimal for highway pulls in the 63's.

Skullleader21

I bought a 05 SLK55.I wanted to know the best way to launch on the line, ESp on or off and putting on M,S, or C mode which is best?Thnx!

04chase

havent tried it yet but say im doing a burnout with slicks with t/c off will it kill my throttle when it sense's traction lost upon the rear axle? im guessing putting it in m-1 avoids this ?

chawkins2001

Is your car an 04?

GregMB

His profile indicates it a 2006... My guess is that he's holding the brakes while trying to initiate the burnout. In a 2006 (and possibly some 2005s) if you hold the brake for more than about 2 seconds while applying heavy throttle, the ECU will shut the throttle down....even with ESP turned off. It's annoying.

The only solution I can think of is to initiate a burnout with the brakes applied but get off them really FAST, so that the ECU doesn't interfere....or add some mods to the car to allow you to do a full-on stationary burnout just by mashing the gas (no brake pedal applied).

Or just put the car in "dyno mode" for the burnout, then quickly switch it back out of that mode to make your 1/4 mile pass...

-G

AKnight55

Love my 04.. Can roast the tires for days

RedBullJnky

me too

Two screw

On hot days a couple of large Ice Packs on top of the s/c engine should help while waiting in the long staging lanes with the motor off & cooling down. Putting the front tires up to 50psi ( at dragstrip only ) removes a lot of resistance.

TheTherapist

I was under the impression that over-inflating can actually decrease traction and produce worse 1/4 mile times?

Also I'm surprised nobody has mentioned the Adaptive Transmission Reset. Not sure if it would specifically be of benefit when drag racing but it certainly cant hurt. Considering it takes less than 2 and a half minutes I always reset when planning to drive WOT. Car instantly feels like it's had a tune.

TTR

Very interesting read. Will have to try it out this Friday.

schino

front tires hes talking about..

I just realized this thread is really old but pretty much all the points were covered. I don't think there are many other cars that will go this fast with the ease that these do. if on street tires no long burnouts, don't go in the water at all. spin them over real quick to clean and LINE UP IN THE GROOVE! some tracks make you go out of the groove because street tires will pull rubber up off the track. if that's the case I get within an inch of their cone angled slightly so 10ft out im in the groove. 1.80 60ft exactly as the car sits in my sig. suspension in sport 1, not raised, leaving from idle. absolutely no wheel spin. when you pull up to the lights just flicker the bottom bulb on. the shallower you are staged the lower your et will be.