W212 AMG Discuss the W212 AMG's such as the E63

Disappointed with my track result 11.8 @120

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Old May 26, 2016 | 01:23 PM
  #26  
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Originally Posted by screw991le
Yeah, thanks, with 30 years of racing under my belt.

(Laymen's terms) Reaction time is your ability to watch the light and practice against the light, so if you freeze and then hammer the throttle on full green you already .5 seconds to late. I know it has nothing to do with your trap speed or time. But it helps you launch better and get the tires to the ground for a better or great 60 foot time.

Trap speeds also have to do with shifting, is he leaving it in C? S+ Manual mode? Is the traction control on? Sport? or totally off?

To many factors to mention. Was it a pro tree? 1/2 tree? Did you drive through the water box, drive around it? Brake load? Hold mode? Drag rads? Tire pressure? etc.

I have raced everything from my friends Honda to teach him how to drive, To a 9 second pro-mod that a buddy owns. I have my licenses in 5 different categories and a SCCA ama-mod lic.

Unless you are there watching and logging data and such, it's called bench racing. Yes the OP has a problem, I don't think it's in the power department. Its in the experience department.

You have have a F40 vs. a Honda civic, if the F40 driver is a person with more money than brains, and the civic driver is more experienced, the guess what?, the civic driver wins hands down. Just because you have a 600hp car with a 0-60 time of 3.7 seconds, Does not mean every time you hit that gas peddle the car will go to 60 in 3.7 seconds.

Rant off
30 years of drag racing and you still do not know that reaction time has no bearing on your et or traps???
Everything else you ranted and raved about is more or less speculation and mostly irrelevant, so let me help..... If OP launched his car and his waste gate opened for only 3 seconds and re-closed, his times will suffer. If he is running and suddenly the ecu senses knock on EVERY run and pulls timing and drops boost, his et and traps will suffer. Either way he could still dyno 600rwhp showing zero loss in power (except for those pesky blips of power loss on the track). Want me to continue???

The only part of your post I had in bold was what I commented about, the reaction time
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Old May 26, 2016 | 01:25 PM
  #27  
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1.9 60ft , 1/8 mile , 97 mph , 96-99 is my everage , this is not E63 but awd , so with the bad 60ft rwd , the trap speed will go up
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Old May 26, 2016 | 01:37 PM
  #28  
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Originally Posted by kponti
30 years of drag racing and you still do not know that reaction time has no bearing on your et or traps???
Everything else you ranted and raved about is more or less speculation and mostly irrelevant, so let me help..... If OP launched his car and his waste gate opened for only 3 seconds and re-closed, his times will suffer. If he is running and suddenly the ecu senses knock on EVERY run and pulls timing and drops boost, his et and traps will suffer. Either way he could still dyno 600rwhp showing zero loss in power (except for those pesky blips of power loss on the track). Want me to continue???

The only part of your post I had in bold was what I commented about, the reaction time
lol
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Old May 26, 2016 | 02:05 PM
  #29  
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Originally Posted by kponti
A 2.0 60' is not exactly half a second off the norm or we would have seen low 10 second times by now. The average tuned 4wd 60's I have seen both at the track and online has been around 1.7/1.8 secs (RWD ones are worse). Yes I know 1.8 to 2.0 is an eternity in drag racing, but not enough for a 6 to 8 mph drop in trap speeds
The average for tuned is 1.7-1.8 for awd and rwd with tires. His average is 2.1. It's not s half second but like I said "almost". Regardless, that poor of a 60ft time is NOT going to help mph. That indicates way too much tire slip rather than just a slow launch.
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Old May 26, 2016 | 02:13 PM
  #30  
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Originally Posted by chiromikey
The average for tuned is 1.7-1.8 for awd and rwd with tires. His average is 2.1. It's not s half second but like I said "almost". Regardless, that poor of a 60ft time is NOT going to help mph. That indicates way too much tire slip rather than just a slow launch.
Good point, I did focus on the two 2.0xx 60' times and kinda ignored the one 2.18x one. My research mode kicked it out as an outlier
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Old May 26, 2016 | 02:15 PM
  #31  
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These cars trap 118-120 bone stock btw, in the interest of not loosing focus.
Also the 2012-2013 have the largest power gains on a tune. Even a 4 or 5 mph gain on the traps (should be 8-10mph) from stock would have made me feel like this was no anomaly. However I will reiterate, having the traction control on probably had a lot to do with the issue.
I believe comfort mode (suspension) with sport plus (engine response) and traction control off would yield the best times, but I have nothing to back that up with.

Last edited by kponti; May 26, 2016 at 02:18 PM.
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Old May 26, 2016 | 02:42 PM
  #32  
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Maybe he's just making less power and like he suspects the tune is off
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Old May 26, 2016 | 02:48 PM
  #33  
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Mod their car, race it and not log. Big mistake.
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Old May 26, 2016 | 02:49 PM
  #34  
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I used to cut consistent 1.7's on DWS with my 55.
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Old May 26, 2016 | 04:26 PM
  #35  
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Originally Posted by kponti
Good point, I did focus on the two 2.0xx 60' times and kinda ignored the one 2.18x one. My research mode kicked it out as an outlier
At this point my thoughts are that there's too much tire slip and by the time the ECU finally decides there's enough grip to allow full power he only has 75% of the track left at his disposal.

All speculation I guess.
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Old May 26, 2016 | 05:41 PM
  #36  
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Thanks for those who chimed in.

Just to be clear, I did brake torque between 1200-1500, S+, comfort suspension mode, 36F/29R psi, traction control on with almost no wheel spin. My son watched from the spectator stand and said the launch looked decent no massive wheel spin. Even with my 2.0 60ft time, I still feel that I should be trapping at around 126mph especially with catless downpipes. As for my reaction time, I didn't care too much for it because it didn't affect the et.

Last edited by silvers2k; May 26, 2016 at 10:06 PM.
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Old May 27, 2016 | 02:36 PM
  #37  
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the reaction time shouldnt matter that much, as some other have mentioned, if the power was there even with a 2.0 0-60ft you should be trapping mid 120's, not low 120...

for reference here are a few tuned M157's with similar bad reaction time/0-60 ft but trap more inline with tuned power levels (124-127)

http://dragtimes.com/Mercedes-Benz-E...lip-26938.html

http://dragtimes.com/Mercedes-Benz-C...lip-24100.html

and for more reference here is a bone stock M157 that ran similar reaction time as you and similar trap speed.... you being tuned should of picked up more trap speed than a stock car with same reaction time... something is up with your tune not making power

http://dragtimes.com/Mercedes-Benz-E...lip-26391.html


and the fact that your tuner asked if you were a pro driver would of really pissed me off as none of these other guys running ~126 mph on tune only are pros either... i would show him next time all the non-pro's on this forum and dragtimes trapping 126ish

Last edited by gaspam; May 27, 2016 at 02:40 PM.
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Old May 27, 2016 | 07:55 PM
  #38  
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Originally Posted by gaspam
the reaction time shouldnt matter that much, as some other have mentioned, if the power was there even with a 2.0 0-60ft you should be trapping mid 120's, not low 120...

for reference here are a few tuned M157's with similar bad reaction time/0-60 ft but trap more inline with tuned power levels (124-127)

http://dragtimes.com/Mercedes-Benz-E...lip-26938.html

http://dragtimes.com/Mercedes-Benz-C...lip-24100.html

and for more reference here is a bone stock M157 that ran similar reaction time as you and similar trap speed.... you being tuned should of picked up more trap speed than a stock car with same reaction time... something is up with your tune not making power

http://dragtimes.com/Mercedes-Benz-E...lip-26391.html


and the fact that your tuner asked if you were a pro driver would of really pissed me off as none of these other guys running ~126 mph on tune only are pros either... i would show him next time all the non-pro's on this forum and dragtimes trapping 126ish
Are you sure none of the guys here are professional drivers???
Sorry for my sarcasm but that comment made me even more furious than my poor trap speed.

I just came back from my dyno and I can conclude my theory was right. I'm not making remotely close to what I should be making in terms of power...not even close. Stage 1 tune cars are making considerably more power with stock downpipes. Additionally, I found out my car is running LEAN in low rpm's...and puff the blue smoke.

I'm not a professional driver nor a mechanic, but I know that trap speed is a good indicator of checking how much power your car is producing regardless of the 60ft time or quarter mile time.

I am going e-mail the owner and hope he can rectify this issue. Frankly, based on my experience over the phone and how this guy handled the situation my confidence level is very low.
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Old May 27, 2016 | 08:17 PM
  #39  
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Originally Posted by silvers2k
Are you sure none of the guys here are professional drivers???
Sorry for my sarcasm but that comment made me even more furious than my poor trap speed.

I just came back from my dyno and I can conclude my theory was right. I'm not making remotely close to what I should be making in terms of power...not even close. Stage 1 tune cars are making considerably more power with stock downpipes. Additionally, I found out my car is running LEAN in low rpm's...and puff the blue smoke.

I'm not a professional driver nor a mechanic, but I know that trap speed is a good indicator of checking how much power your car is producing regardless of the 60ft time or quarter mile time.

I am going e-mail the owner and hope he can rectify this issue. Frankly, based on my experience over the phone and how this guy handled the situation my confidence level is very low.
Nice discovery man, glad you trusted your instinct... Hopefully this can get resolved

What kind of numbers did you make
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Old May 27, 2016 | 08:23 PM
  #40  
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Originally Posted by PeterUbers
Nice discovery man, glad you trusted your instinct... Hopefully this can get resolved

What kind of numbers did you make
480-500 awhp I'd guess
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Old May 27, 2016 | 08:28 PM
  #41  
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Originally Posted by Fairbird
480-500 awhp I'd guess
Educate me guys... Will this be a tune problem for him or hardware?
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Old May 27, 2016 | 08:31 PM
  #42  
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Originally Posted by PeterUbers
Educate me guys... Will this be a tune problem for him or hardware?
Can be both together or separately . I would check the codes first .
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Old May 27, 2016 | 08:34 PM
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Originally Posted by Fairbird
Can be both together or separately . I would check the codes first .
Can a tune ever "deteriorate"... Meaning create good power for a year then start creating less power ...?
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Old May 27, 2016 | 08:36 PM
  #44  
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Originally Posted by PeterUbers
Educate me guys... Will this be a tune problem for him or hardware?
could be both... tune could be all wrong, or tune could be correct but fuel pump could be clogged/injectors not getting enough increased fuel need through or something else like that, mechanically, to cause it to run lean..... but i would guess tune as most mechanical problems would have already been evident most likely
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Old May 27, 2016 | 08:38 PM
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Originally Posted by PeterUbers
Nice discovery man, glad you trusted your instinct... Hopefully this can get resolved

What kind of numbers did you make
Thanks Peter. I hope this issue gets resolved to my satisfaction. To tell you the truth, I'm willing to walk away and call it a loss but hope that's not the case. It was a BIG decision to tune my car for many obvious reasons (warranty for one). I searched the forum countless hours to ensure I'm doing the right thing and before heading out to the drag strip.
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Old May 27, 2016 | 08:39 PM
  #46  
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Originally Posted by PeterUbers
Can a tune ever "deteriorate"... Meaning create good power for a year then start creating less power ...?
no, computers dont get lazy and say I;m supposed to give this fuel, boost, timing etc, but im gonna be frugal and give 50% of what im programmed to give

only way our types of tunes change is if some changes them or dealer flashes back to stock
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Old May 27, 2016 | 08:41 PM
  #47  
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Originally Posted by silvers2k
Are you sure none of the guys here are professional drivers???
Sorry for my sarcasm but that comment made me even more furious than my poor trap speed.

I just came back from my dyno and I can conclude my theory was right. I'm not making remotely close to what I should be making in terms of power...not even close. Stage 1 tune cars are making considerably more power with stock downpipes. Additionally, I found out my car is running LEAN in low rpm's...and puff the blue smoke.

I'm not a professional driver nor a mechanic, but I know that trap speed is a good indicator of checking how much power your car is producing regardless of the 60ft time or quarter mile time.

I am going e-mail the owner and hope he can rectify this issue. Frankly, based on my experience over the phone and how this guy handled the situation my confidence level is very low.
can you post the tuner? many would be interested to know... especially if they are planning on buying a turbo kit from said tuner
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Old May 27, 2016 | 08:43 PM
  #48  
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Originally Posted by PeterUbers
Educate me guys... Will this be a tune problem for him or hardware?
Very unlikely it's anything to do with the hardware since my car ran strong with no issues in the past. I made several dealer visits to ensure my car was running strong before getting the tune. I even asked the dealer to perform oil consumption test just to be extra safe. Then again, anything is possible just highly unlikely.
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Old May 27, 2016 | 08:47 PM
  #49  
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Originally Posted by gaspam
can you post the tuner? many would be interested to know... especially if they are planning on buying a turbo kit from said tuner
looks like in other thread you went with eurocharged?... In my experience they have always been standup cool guys as i have used them on my E55 and C63

https://mbworld.org/forums/w212-amg/...ml#post6800552
Originally Posted by silvers2k
^Eurocharged.

From what I gathered on the forum and my tuner, stock plugs are recommended. As a preventative measure, I'm going to order a set of oem plugs. I have 37K miles on the plugs.
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Old May 27, 2016 | 08:53 PM
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Originally Posted by gaspam
can you post the tuner? many would be interested to know... especially if they are planning on buying a turbo kit from said tuner
I'm going to give the tuner the opportunity to respond back before I go down that road. I understand mistakes can happen, it's how they handle it...so far not very happy.
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