2004 E55 AMG dyno numbers - before and after...
Thread Starter
Senior Member
Joined: May 2007
Posts: 286
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From: Northern Virginia
2005 E55 AMG
2004 E55 AMG dyno numbers - before and after...
Before: Stock
After: Kleemann Headers, Pump, Thermostat
The Dyno is a DynoJet (in-ground at Excessive Motorsport - Northern VA - shop is a distributor for LET)
SAE:
Stock dyno peak numbers - 410/433
After dyno peak numbers - 447/472
STD:
Stock dyno peak numbers - 422/446
After dyno peak numbers - 461/484
Difference in numbers all the way across the curve was the same as the peak difference.
I believe I am getting headers now.
I will get the dyno sheet up soon as I get to my house.
After: Kleemann Headers, Pump, Thermostat
The Dyno is a DynoJet (in-ground at Excessive Motorsport - Northern VA - shop is a distributor for LET)
SAE:
Stock dyno peak numbers - 410/433
After dyno peak numbers - 447/472
STD:
Stock dyno peak numbers - 422/446
After dyno peak numbers - 461/484
Difference in numbers all the way across the curve was the same as the peak difference.
I believe I am getting headers now.
I will get the dyno sheet up soon as I get to my house.
Last edited by Almo; Feb 16, 2009 at 02:02 PM.
Member
Joined: Jun 2008
Posts: 246
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From: Toronto
2011 Black C63 Eurocharged V5
they happen to put a wideband on it? Id be very interested in what the AFR looked like before and after the headers. Andy from MHP asserted that he didnt think that headers were worth much and that most of their gains are from a leaner AFR. Id like to see if your data supports or refutes this assertion.
Thread Starter
Senior Member
Joined: May 2007
Posts: 286
Likes: 0
From: Northern Virginia
2005 E55 AMG
they happen to put a wideband on it? Id be very interested in what the AFR looked like before and after the headers. Andy from MHP asserted that he didnt think that headers were worth much and that most of their gains are from a leaner AFR. Id like to see if your data supports or refutes this assertion.
Of course, NA motors are a different story and will not yield as much of a gain compared to FI engines. Maybe this is why Andy stated what he did seeing he might have been speaking in line with his C63. The AFR is reflected on the dyno sheet and I must say it was pretty.
I forgot to grab the dyno sheet when I left yesterday but will get it tonight, take a good picture host/toss it up.
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Joined: Oct 2007
Posts: 155
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From: McLean, VA
2004 E55
Dyno Sheet
The car that Almo is referring to is actually mine. The guys at Excessive Motorsport did a great job with the headers and cooling mods. The before and after dyno is posted below. Next up: 180 mm pulley and custom LET tune!!!
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MBWorld Fanatic!
Joined: May 2007
Posts: 1,793
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From: San Diego
2004 E55
That is an outstanding dyno sheet, and confirms my feelings that my car gained a decent more amount of power. Thanks for sharing.
Oh and I'm on the same track as you, I'll be going with a 180mm pulley and an LET tune soon enough!
Oh and I'm on the same track as you, I'll be going with a 180mm pulley and an LET tune soon enough!
Member
Joined: Oct 2007
Posts: 155
Likes: 0
From: McLean, VA
2004 E55
Exactly.....and there is a nice increase in sound as well. Not too obnoxious, but enough that you notice a difference.
