First 1/4 mile runs this past Friday.
Thread Starter
Super Member
Joined: Jan 2008
Posts: 586
Likes: 2
From: Springfield, Missouri
03' E55 Techtite Grey
First 1/4 mile runs this past Friday.
I finally took the 55 to the 1/4 mile track this past Friday. I'm fully stock except for sprint booster and K&N drop in filters. The first run I let off before the finish line cause I didn't know where it was. The second run I laid on the throttle to much off the line and got sideways, let off for a second to get traction, and then got back on it. For people that know how to read the times and trap speed let me know what time I could be running if I got a good run in.
1st Run
Reaction 1.3833
60 ft 1.9084
330 ft 5.2817
1/8 et 8.0498
1/8 mph 88.81
1000 et 10.4267
1000 mph 102.74
1/4 et 12.3357
1/4 mph 103.93
Let off to soon
2nd Run
Reaction 1.1750
60 ft 2.3225
330 ft 5.8459
1/8 et 8.6564
1/8 mph 87.28
1000 et 11.0705
1000 mph 101.28
1/4 et 12.9664
1/4 mph 112.14
Going to go again this Friday, any bets on what I might get
1st Run
Reaction 1.3833
60 ft 1.9084
330 ft 5.2817
1/8 et 8.0498
1/8 mph 88.81
1000 et 10.4267
1000 mph 102.74
1/4 et 12.3357
1/4 mph 103.93
Let off to soon2nd Run
Reaction 1.1750
60 ft 2.3225
330 ft 5.8459
1/8 et 8.6564
1/8 mph 87.28
1000 et 11.0705
1000 mph 101.28
1/4 et 12.9664
1/4 mph 112.14
Going to go again this Friday, any bets on what I might get
Senior Member
Joined: Nov 2007
Posts: 286
Likes: 0
From: Florida
GT-R
You sure have a fast E55 once you learn to drive it. On your first run, you probably would've broke into the 11's if you didn't let off too early. On the second run, you lost a bunch of time in your ET because of the bad launch completely. Sounds like you have a very healthy E55 though.
How did you launch?
My first time ever with the E, I had ESP off and went completely sideways just after the launch and ran a 13.8.
How did you launch?
My first time ever with the E, I had ESP off and went completely sideways just after the launch and ran a 13.8.
Thread Starter
Super Member
Joined: Jan 2008
Posts: 586
Likes: 2
From: Springfield, Missouri
03' E55 Techtite Grey
You sure have a fast E55 once you learn to drive it. On your first run, you probably would've broke into the 11's if you didn't let off too early. On the second run, you lost a bunch of time in your ET because of the bad launch completely. Sounds like you have a very healthy E55 though.
How did you launch?
My first time ever with the E, I had ESP off and went completely sideways just after the launch and ran a 13.8.
How did you launch?
My first time ever with the E, I had ESP off and went completely sideways just after the launch and ran a 13.8.
Looking at the time differences between the runs and mph what do you think I could have got? Does anybody know what the fastest 1/4 with a stock E55 is? I was racing my two friends that have 04' E55's and the fastest they ran that night was mid 13's and they don't have Pano roofs like I do.
Last edited by NSX2NV; Oct 1, 2008 at 06:18 PM.
MBWorld Fanatic!
Joined: Nov 2002
Posts: 2,895
Likes: 53
From: Maryland
'14 E63S & '14 Audi SQ5
You sure have a fast E55 once you learn to drive it. On your first run, you probably would've broke into the 11's if you didn't let off too early. On the second run, you lost a bunch of time in your ET because of the bad launch completely. Sounds like you have a very healthy E55 though.
How did you launch?
My first time ever with the E, I had ESP off and went completely sideways just after the launch and ran a 13.8.
How did you launch?
My first time ever with the E, I had ESP off and went completely sideways just after the launch and ran a 13.8.
I respectfully diagree. Let's look at both runs...in the 2nd run he has a pick up of about 11mph from 1000' to the end of the 1/4 mile. Now look at the 1000' time and mph in the 1st run. He is running 10.4267 @ 102.74mph through 1000'. For argument sakes lets say he would have hit 118mph (a huge15.26mph increase from the 1000' trap) had he not lifted off. Lets now say that he AVERAGED 118mph over the entire remaining 320ft (1320' less 1000'). That would equate to 173.0667ft per second. So it would take a car, travelling a constant 118mph, 1.849 seconds (320'/173.0667ft/s) to cover that ground. The 1.849s + the 10.4267seconds to the 1000' mark would equal a 1/4 mile time of 12.28 seconds. Now factor in that his car is probably averaging below 118mph over the remaining 320' and you will probably agree that his overall elapsed time was affected by less than 1/10 of a second and that he is still a good .3 seconds away from the 11's. That is why ET is all in the launch...
Tom
Senior Member
Joined: Sep 2008
Posts: 446
Likes: 0
From: Las Vegas
2005 Crossfire SRT-6
Your trap speed on your second pass is what I trapped two weeks ago. The 60' time is what deturmins how good a run you will have. Here's my real world example:
You ran a 12.96 @112.14 with a 2.32 60'
I ran a 12.40 @ 112.10 with a 1.85 60'
Find yourself an extra set of wheels and put some drag radials on them and your traction issues will be less prevelant.
You ran a 12.96 @112.14 with a 2.32 60'
I ran a 12.40 @ 112.10 with a 1.85 60'
Find yourself an extra set of wheels and put some drag radials on them and your traction issues will be less prevelant.
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MBWorld Fanatic!
Joined: Feb 2007
Posts: 1,010
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From: Phoenix by way of Texas
2003 E55 AMG
I finally took the 55 to the 1/4 mile track this past Friday. I'm fully stock except for sprint booster and K&N drop in filters. The first run I let off before the finish line cause I didn't know where it was. The second run I laid on the throttle to much off the line and got sideways, let off for a second to get traction, and then got back on it. For people that know how to read the times and trap speed let me know what time I could be running if I got a good run in.
1st Run
Reaction 1.3833
60 ft 1.9084
330 ft 5.2817
1/8 et 8.0498
1/8 mph 88.81
1000 et 10.4267
1000 mph 102.74
1/4 et 12.3357
1/4 mph 103.93 Let off to soon
2nd Run
Reaction 1.1750
60 ft 2.3225
330 ft 5.8459
1/8 et 8.6564
1/8 mph 87.28
1000 et 11.0705
1000 mph 101.28
1/4 et 12.9664
1/4 mph 112.14
Going to go again this Friday, any bets on what I might get
1st Run
Reaction 1.3833
60 ft 1.9084
330 ft 5.2817
1/8 et 8.0498
1/8 mph 88.81
1000 et 10.4267
1000 mph 102.74
1/4 et 12.3357
1/4 mph 103.93
Let off to soon2nd Run
Reaction 1.1750
60 ft 2.3225
330 ft 5.8459
1/8 et 8.6564
1/8 mph 87.28
1000 et 11.0705
1000 mph 101.28
1/4 et 12.9664
1/4 mph 112.14
Going to go again this Friday, any bets on what I might get
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Senior Member
Joined: Nov 2007
Posts: 286
Likes: 0
From: Florida
GT-R
I respectfully diagree. Let's look at both runs...in the 2nd run he has a pick up of about 11mph from 1000' to the end of the 1/4 mile. Now look at the 1000' time and mph in the 1st run. He is running 10.4267 @ 102.74mph through 1000'. For argument sakes lets say he would have hit 118mph (a huge15.26mph increase from the 1000' trap) had he not lifted off. Lets now say that he AVERAGED 118mph over the entire remaining 320ft (1320' less 1000'). That would equate to 173.0667ft per second. So it would take a car, travelling a constant 118mph, 1.849 seconds (320'/173.0667ft/s) to cover that ground. The 1.849s + the 10.4267seconds to the 1000' mark would equal a 1/4 mile time of 12.28 seconds. Now factor in that his car is probably averaging below 118mph over the remaining 320' and you will probably agree that his overall elapsed time was affected by less than 1/10 of a second and that he is still a good .3 seconds away from the 11's. That is why ET is all in the launch...
Tom
Tom
Impressive analysis, however, you assumed that he was under full throttle as he passed the 1000' foot mark. We don't at what point he let off. Either way, I may have slightly miscalculated he's estimated ET had he not let off.
Good to have a number cruncher around here...
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Joined: Nov 2002
Posts: 2,895
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From: Maryland
'14 E63S & '14 Audi SQ5
Tom,
Impressive analysis, however, you assumed that he was under full throttle as he passed the 1000' foot mark. We don't at what point he let off. Either way, I may have slightly miscalculated he's estimated ET had he not let off.
Good to have a number cruncher around here...
Impressive analysis, however, you assumed that he was under full throttle as he passed the 1000' foot mark. We don't at what point he let off. Either way, I may have slightly miscalculated he's estimated ET had he not let off.
Good to have a number cruncher around here...
And btw the 1000' trap was a pretty good speed for a stock E55. Also look at the trap speeds for the two runs...it seems reasonable that he was carrying a higher trap by 1+mph at the 1/8 mile and 1000' marks than the second run.
Tom
Last edited by TMC M5; Oct 1, 2008 at 11:27 PM.
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From: Bay Area
2015 E63S, 2018 E63S
If you are talking trap speed.....1st Enzom 118.69 , 2nd Housclass 118.35 , 3rd Hammer Down 117.73 but if you're talking about et.... 1st Enzom @ 11.77, 2nd Housclass @ 11.849 , 3rd Chicago X @ 11.90
Thread Starter
Super Member
Joined: Jan 2008
Posts: 586
Likes: 2
From: Springfield, Missouri
03' E55 Techtite Grey
Whoa those times were stock? I hope to hit 12.1 if I'm lucky. Did they do that on street tires, drag radials, or slicks? Stock wheels or aftermarket?
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Joined: Jun 2005
Posts: 1,406
Likes: 1
From: Mia
2005 E 55
Good luck at the track next time out.
I like the fact the track gives you the 1000 foot trap, not many tracks do.
I bet it has to do with the NHRA reducing the race distance for the Top classes.
I like the fact the track gives you the 1000 foot trap, not many tracks do.
I bet it has to do with the NHRA reducing the race distance for the Top classes.
Last edited by rflow306; Oct 2, 2008 at 09:14 AM.
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From: Maryland
'14 E63S & '14 Audi SQ5
Tom
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From: Bay Area
2015 E63S, 2018 E63S
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From: San Diego
E55
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From: Bay Area
2015 E63S, 2018 E63S
