Base Dyno
Thread Starter
Super Member
Joined: Oct 2005
Posts: 689
Likes: 5
From: Vegas
'21 GLC63, '19 M5
Base Dyno
Did a dyno on my stock '04 E55 w/ 38K. Results are posted below. I think the numbers are pretty good for stock. I was curious if the Air/Fuel is good and if adding an ASP pully alone was safe.
Once the pully is on, I will let the ECU adopt and will do another Dyno for review.
Also, first pull was good. The rest of the pulls the car down shifted at WOT
. Pulls were made in Dyno Mode in M4. Any tips for the pulls?
Once the pully is on, I will let the ECU adopt and will do another Dyno for review.
Also, first pull was good. The rest of the pulls the car down shifted at WOT
. Pulls were made in Dyno Mode in M4. Any tips for the pulls?
MBWorld Fanatic!
Joined: Sep 2006
Posts: 2,175
Likes: 0
06 EuroElites E55
MBWorld Fanatic!
Joined: Mar 2004
Posts: 5,768
Likes: 5
From: South FL & NYC
Your worst nightmare...
MBWorld Fanatic!
Joined: Sep 2006
Posts: 2,175
Likes: 0
06 EuroElites E55
if this guy started out at 427 and added 47 more hp he would have 474hp that is crazy thats close to stage 5.
i was also told by a trust worthy guy that a dyno operator can make you think you have more power than you do. he claims he can make my car have 50hp more just by messing with the dyno. i have no clue if this is true or what just passing along what i was told.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
MBWorld Fanatic!
Joined: Jun 2005
Posts: 1,406
Likes: 1
From: Mia
2005 E 55
MBWorld Fanatic!
Joined: Mar 2004
Posts: 5,768
Likes: 5
From: South FL & NYC
Your worst nightmare...
if you started out at 410 what did you get after ASP pully? i wonder if you guys with higher stock numbers get the same gains? my renn pully and ecu got me 41 or 47 extra HP i think it was 47hp.
if this guy started out at 427 and added 47 more hp he would have 474hp that is crazy thats close to stage 5.
i was also told by a trust worthy guy that a dyno operator can make you think you have more power than you do. he claims he can make my car have 50hp more just by messing with the dyno. i have no clue if this is true or what just passing along what i was told.
if this guy started out at 427 and added 47 more hp he would have 474hp that is crazy thats close to stage 5.
i was also told by a trust worthy guy that a dyno operator can make you think you have more power than you do. he claims he can make my car have 50hp more just by messing with the dyno. i have no clue if this is true or what just passing along what i was told.
Thread Starter
Super Member
Joined: Oct 2005
Posts: 689
Likes: 5
From: Vegas
'21 GLC63, '19 M5
Thread Starter
Super Member
Joined: Oct 2005
Posts: 689
Likes: 5
From: Vegas
'21 GLC63, '19 M5
That is one thing that I am concerned with: Heat due to Pulley with ECU or no ECU, which may result in actually degradation of performance. Does anyone have similar experience with this? By the way, my IC pump was replaced last month.
With the pulley I actually lost power it is all due to the amount of heat produced by spinning the supercharger faster and not having a good pump, at that point had a bad pump and all I got was 426 to the wheel, I was not happy but spoke to a few technical people and they said until I get cooling modifications I will not see anything above that number. After that i added headers and Cams, this saturday I am adding a meth kit, can't wait to see the results.
Thread Starter
Super Member
Joined: Oct 2005
Posts: 689
Likes: 5
From: Vegas
'21 GLC63, '19 M5
Banned
Joined: Jun 2003
Posts: 960
Likes: 1
From: Socal
06' Clk 500 Cabriolet, 01' CL 55, 00' Clk 430
Senior Member
Joined: Mar 2006
Posts: 297
Likes: 0
From: Boston
S211 AMG
MBWorld Fanatic!
Joined: Mar 2004
Posts: 5,768
Likes: 5
From: South FL & NYC
Your worst nightmare...
Just get an extra Heat exchanger and you will be fine. I have no ECu tune as of now, I am waiting until the end to do it, I am just missing an 80MM throtle body for the masterpiece to be finished and a big intercooler.
Thread Starter
Super Member
Joined: Oct 2005
Posts: 689
Likes: 5
From: Vegas
'21 GLC63, '19 M5
No... you're not missing anything. Those mph numbers don't mean anything (I think), since at the end of the pull I could have sworn the needle was almost at 160 
I wonder if I can have them replot that run on the RPM range with their comp... not sure if that's doable after a run though...
I wonder if I can have them replot that run on the RPM range with their comp... not sure if that's doable after a run though...
Thread Starter
Super Member
Joined: Oct 2005
Posts: 689
Likes: 5
From: Vegas
'21 GLC63, '19 M5
Senior Member
Joined: Mar 2006
Posts: 297
Likes: 0
From: Boston
S211 AMG
No... you're not missing anything. Those mph numbers don't mean anything (I think), since at the end of the pull I could have sworn the needle was almost at 160
I wonder if I can have them replot that run on the RPM range with their comp... not sure if that's doable after a run though...
I wonder if I can have them replot that run on the RPM range with their comp... not sure if that's doable after a run though...
MBWorld Fanatic!
Joined: Feb 2004
Posts: 2,450
Likes: 1
1989 Toyota Tercel EZ - dyno'd @ 70whp/77wtq
Damn... so many rocket 
RocketW19, did Adam do pre/post dyno?
I plan to do it.... I'm curious to know whether my car is healthy and what kind of gains from pulley alone.
DIRTYVEGAS:
As for the heat, that's what I'd expect also.... bigger crank pulley = bigger boost on S/C = more work = more heat.... Not sure how effective the stock is given it fails after couple bursts
For those who use Johnson pump, is it better over stock?
RocketW19, did Adam do pre/post dyno?
I plan to do it.... I'm curious to know whether my car is healthy and what kind of gains from pulley alone.
DIRTYVEGAS:
As for the heat, that's what I'd expect also.... bigger crank pulley = bigger boost on S/C = more work = more heat.... Not sure how effective the stock is given it fails after couple bursts
For those who use Johnson pump, is it better over stock?
Junior Member
Joined: Jun 2007
Posts: 62
Likes: 0
MB W212; NISSAN R35; BMW E60
My main concern with your graph would be how AFR drops off up top. Below 10:1 is exceedingly rich, and judging from the way the graph is headed makes me think that you possibly didn't have enough adequate airflow (which is no surprise as most dyno facilities can't produce the airflow).
Also keep in mind that dynojets are generally not loaded, meaning that the load would not be an accurate indication of what your car is doing on the street.
Nice graph though, I think I'm going to strap my car down in the next few days see what it does on a loaded dyno.
Also keep in mind that dynojets are generally not loaded, meaning that the load would not be an accurate indication of what your car is doing on the street.
Nice graph though, I think I'm going to strap my car down in the next few days see what it does on a loaded dyno.
Last edited by ghh429; Jun 6, 2007 at 04:23 AM.
MBWorld Fanatic!
Joined: Aug 2004
Posts: 1,732
Likes: 1
From: NJ
2005 E55
My main concern with your graph would be how AFR drops off up top. Below 10:1 is exceedingly rich, and judging from the way the graph is headed makes me think that you possibly didn't have enough adequate airflow (which is no surprise as most dyno facilities can't produce the airflow).
Also keep in mind that dynojets are generally not loaded, meaning that the load would not be an accurate indication of what your car is doing on the street.
Nice graph though, I think I'm going to strap my car down in the next few days see what it does on a loaded dyno.
Also keep in mind that dynojets are generally not loaded, meaning that the load would not be an accurate indication of what your car is doing on the street.
Nice graph though, I think I'm going to strap my car down in the next few days see what it does on a loaded dyno.
Most bone stock dyno graphs I have seen show the same plummeting AFR's, including mine.
I have asked this question before, but received no answer - What is the proper gear to use for a dyno run in a bone stock E55? All of my runs were in 3rd because I had read that doing a pull in 4th (the ideal 1:1 gear) will not allow the car to pull to redline because of the speed limiter.
Assuming that it is possible to run in 4th, is my 419 rwhp and 455 rwtq (measured in 3rd gear) less than what it would have shown had I run the car in 4th?
Thanks.
