W211 AMG Discuss the W211 AMG's such as the E55 and the E63

E55 dyno test results

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Old Dec 10, 2007 | 10:57 PM
  #1  
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2005 E55 Amg
E55 dyno test results

Dynoed my 05 E55 today, it put down 443 horsepower and 469 lb. ft. of torque.
Only mods are snorkel tube and K&N filters.

This would mean that the horsepower at the crank is over 500 and torque is over 540 lb. lbs, using a 15% drivetrain loss calculation.
is this motor rated low at 469 horsepower intentionally by the factory?
Attached Thumbnails E55 dyno test results-e55-benz-dyno-sheet012.jpg  
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Old Dec 10, 2007 | 11:01 PM
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2003 E55 AMG
Your 3rd gear dyno is showing a bit higher hp because it is not a 1:1 gear ratio. If you would of dyno'd in 4th gear you would have gotten approx 433rwhp and 479rwtq.. that is in line with an 05-06 55 car.. The 05-06 cars generally dyno 10-15rwhp higher than an 03-04 car.

These cars ARE underrated from the factory.. they all show over 500hp @ the crank.
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Old Dec 10, 2007 | 11:04 PM
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2003 E55 AMG
Just curious, what kind of dynometer was it?
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Old Dec 10, 2007 | 11:08 PM
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E55
Nice numbers,but not accurate.
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Old Dec 10, 2007 | 11:10 PM
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2005 E55 Amg
Not sure what kind exactly. It is located at NRP (Nevarez Racing Products) a very well known and respected engine builder and tuner. Their shop is located right near Las Vegas Speedway.
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Old Dec 11, 2007 | 12:01 AM
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2005 E55
For some reason you are running LEAN??
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Old Dec 11, 2007 | 12:10 AM
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2005 E55 Amg
I don't know why it would be running lean. Nothing has been done to the computer to my knowledge.
I don't hear any pinging and the car pulls strong all the way through the gears.
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Old Dec 11, 2007 | 12:30 AM
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E55
I would'nt go off those results.
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Old Dec 11, 2007 | 02:37 AM
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Originally Posted by Jrocket
I would'nt go off those results.
just curious why? (details plz )
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Old Dec 11, 2007 | 06:09 AM
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ask them for the SAE graph.........
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Old Dec 11, 2007 | 06:21 AM
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2005 E55 ///AMG
Also, isn't the drivetrain loss more around 18%?
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Old Dec 11, 2007 | 06:50 AM
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Originally Posted by Timeless
Also, isn't the drivetrain loss more around 18%?
+1
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Old Dec 11, 2007 | 07:32 AM
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2005 E55
i dynoed almost identical #'s stock... you might want to re- dyno bone stock... the filter and snorkel may not have done anything
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Old Dec 11, 2007 | 09:58 AM
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I always calculate about 18-19% for AWD cars, and 15-16% drivetrain loss for RWD
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Old Dec 11, 2007 | 10:29 AM
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Why do the 03-04 cars usually dyno 10-15 hp less than the 05-06's?
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