Dyno Problems!!!
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
Dyno Problems!!!
Well me and my cousin took our cars to a local dyno shop, we put my S55 on dyno first, then I put the car in dyno mode, then when they tried doing a first pull, they figured after hooking every thing up, that the boost cable wasn't hooked up, to measure sc psi, so after performing first run, without boost, they figured to pull the car off the dyno, to figure out where the boost connects to, so before even moving the car I turned dyno off, then as soon as he pulls it off dyno, my rear wheels just dumped, I mean were slammed all the way down, and the ABC was not working, visit workshop message appeared, and when I opened my hood, the ABC dipstick, that has a small bleeding hole in it, was leaking fluid from that hole, a small amount of hydraulic fluid leaked, and the ABC still not working, tried to disconnect the battery, but nothing, the error message disappears for less than 1 min of driving, then comes back on. The front isn't as bad, but still not balanced, and when I press the raise buttons, nothing comes on, and the car actually drops in the back more, after it slightly adjusts after a little drive. Any idea why this is happening, or what can I do?
Also after fixinng the problem, when I go to dyno the car, what #s should I expect my Air to Fuel ratio to be within?
Also after fixinng the problem, when I go to dyno the car, what #s should I expect my Air to Fuel ratio to be within?
Last edited by BallzyS55; Feb 12, 2008 at 01:05 AM.
MBWorld Fanatic!
Joined: Jan 2004
Posts: 7,092
Likes: 13
From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Personal opinion.....when they were strapping things down in the back, they clipped a line.
Man bro, you sure are having bad luck on the car front.
2nd, unless you are dyno'ing at Affalterbach Germany, I have rarely heard of a dyno guy wanting to hook up a boost gauge on a run.
As I told you before, have them clamp the exhuast pipe to snag a wideband Air Fuel and run the darn car. We have guys here that could work for AMG and can tell you straight up if your car is messed up. We just need that dyno chart.
Gotta take the car to the stealer and have um check the lines, then tell the dyno guy to take some Xanax, strap the )#$#($*in car down and run it. If we can see the Air Fuels and the runs, we can at least compare to other guys and see.
PS. Only way I know of getting actual boost is drilling the surge tanks and installing boost guage. Perhaps the other guys know of something though.
Man bro, you sure are having bad luck on the car front.
2nd, unless you are dyno'ing at Affalterbach Germany, I have rarely heard of a dyno guy wanting to hook up a boost gauge on a run.
As I told you before, have them clamp the exhuast pipe to snag a wideband Air Fuel and run the darn car. We have guys here that could work for AMG and can tell you straight up if your car is messed up. We just need that dyno chart.
Gotta take the car to the stealer and have um check the lines, then tell the dyno guy to take some Xanax, strap the )#$#($*in car down and run it. If we can see the Air Fuels and the runs, we can at least compare to other guys and see.
PS. Only way I know of getting actual boost is drilling the surge tanks and installing boost guage. Perhaps the other guys know of something though.
Last edited by Jakpro1; Feb 12, 2008 at 10:50 AM.
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
well I guess I'll take it to the dealer, do you think they'll flash the ecu? cause I don't want them to do so before dyno, as I want to get all the facts.
Senior Member
Joined: Jul 2006
Posts: 259
Likes: 0
From: SF Bay Area
06 E55 SOLD, 89 300 SE 375,000 miles
OMG!!!! Ballzy.....Your having the run of the luck aren't you.I have to agree with Jakpro. It does sound like they clipped a line. Get it over to the stealer and have them fix it, and send the bill to the Dyno shop
Unless you already have a vacuum outlet hooked up, there is no need for a boost line. Everything can be pretty much be determined by the readout you'll get from the dyno chart.
By the way what dyno machine are they using?
Good Luck Bro!!!!
Senior Member
Joined: Jul 2006
Posts: 259
Likes: 0
From: SF Bay Area
06 E55 SOLD, 89 300 SE 375,000 miles
What Stealer are you taking it to?
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
mbamg can you call me when you get a chance, my daughter threw my phone in the toilet, I lost your #
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look
Verdad Gallardo
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
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
MBWorld Fanatic!
Joined: Sep 2007
Posts: 2,069
Likes: 3
From: South Carolina
2005 E55 ///AMG
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
Joined: Jul 2006
Posts: 6,761
Likes: 594
From: Seattle
'19 E63S, ‘16 CLS63 RIP, '09 E63 Gone, '06 M5 Gone, '97 Supra TT Gone
Senior Member
Joined: Feb 2004
Posts: 368
Likes: 0
From: Friendswood, TX
'08 CLS63
actually on a N/A engine you want to be in the high 13's to low 14's if i'm correct? back in the day we always used a brake dyno and from what i remember the F/I motors needed to be around 12.1 - 12.5 with a bsfc (brake specific fuel consumption) of .55 (just a hair over 1/2 a pound of fuel per horsepower) and the N/A engines were around 14.1 with a bsfc of .44 different motors required different fuel consumption...aluminum heads, pop-up pistons, dished pistons, compression, ect....it's been 17 years so i may be mistaken.
john
john
Senior Member
Joined: Feb 2004
Posts: 368
Likes: 0
From: Friendswood, TX
'08 CLS63
i understand now...with the lower octane you would want lower numbers...thanks for the refresher!!
john
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
MBWorld Fanatic!
Joined: Mar 2007
Posts: 1,063
Likes: 2
From: Charlotte, NC
2002 S430, 2004 Cobra, 2004 Tahoe
On a FI car, 12.0 is pretty much stoich...if it starts off a bit lean (14.0), then drops down quickly as you get in to boost, then you are OK...IMO, 10.0 is way too rich, especially if they are using a sniffer to test A/F...I would try to be somewhere in the 11.5 range to be on the safe side with optimal performance.
