SL55/63/65/R230 AMG: World's Slowest SL65
09-10-2011, 10:36 AM
#1
Member
Thread Starter
Join Date: May 2004
Location: Texas
Posts: 165
Likes: 0
Received 0 Likes
on
0 Posts
2004 E55
World's Slowest SL65
Just took my 2006 SL65 to the track last night. Best run? 12.7 @ 113 mph. Worst run? 13.4 @ 112 mph. (Both with a 2.0 60FT)
Dentsity Altitude 2000 Feet
This is from a car that used to run 11.8 @ 124 mph 18 months ago.
IAT temps were in the 120's. So it's not an intercooler issue.
I have no idea where to start looking to figure out the problem.......
Boost doesn't seem to really come on until end of 2nd gear...and then it's not much.
No codes are being thrown.
Dentsity Altitude 2000 Feet
This is from a car that used to run 11.8 @ 124 mph 18 months ago.
IAT temps were in the 120's. So it's not an intercooler issue.
I have no idea where to start looking to figure out the problem.......
Boost doesn't seem to really come on until end of 2nd gear...and then it's not much.
No codes are being thrown.
Trending Topics
09-12-2011, 06:08 PM
#8
MBWorld Fanatic!
Sounds like you may have a bad Boost pressure sensor....sits right on top of your Y pipe going there is a metal bracket that holds it. It may not code up for it sometimes. I would also look into the airboxes make sure they are not clogged up with anything, lastly pray its not a bad turbo. The airboxes have 2 sensors make sure they are good, wires are not broken etc.
09-12-2011, 10:23 PM
#9
Member
Thread Starter
Join Date: May 2004
Location: Texas
Posts: 165
Likes: 0
Received 0 Likes
on
0 Posts
2004 E55
09-13-2011, 01:54 AM
#10
Banned
Join Date: Nov 2010
Posts: 955
Likes: 0
Received 1 Like
on
1 Post
2008 C63 ,2009 SL 63 AMG, 2011 SLS AMG
take it to a dyno and see how much power your are making and start from there.
12.7 is really really bad, but dont worry whatever is wrong with your car a proper tuner will identify it and fix it.
When was the last time you serviced your car? do you drive your car alot or is it garaged most of the time?
If it was garaged prior to taking it to the track, then the timing of the ECU did not adapt yet. This happens alot in MB cars and most people dont know about it. If this is what happened, I suggest you hit your car really hard for about 50 miles before taking it to the track. Then, turn the engine off, let it cool down and run your ET again
09-13-2011, 10:39 PM
#11
Member
Thread Starter
Join Date: May 2004
Location: Texas
Posts: 165
Likes: 0
Received 0 Likes
on
0 Posts
2004 E55
I am in the Austin, TX area.
It's a daily driver.
It was dynoed about 2 months ago..... 515 RWHP. I should dyno it again....
It's a daily driver.
It was dynoed about 2 months ago..... 515 RWHP. I should dyno it again....
where are you located?
take it to a dyno and see how much power your are making and start from there.
12.7 is really really bad, but dont worry whatever is wrong with your car a proper tuner will identify it and fix it.
When was the last time you serviced your car? do you drive your car alot or is it garaged most of the time?
If it was garaged prior to taking it to the track, then the timing of the ECU did not adapt yet. This happens alot in MB cars and most people dont know about it. If this is what happened, I suggest you hit your car really hard for about 50 miles before taking it to the track. Then, turn the engine off, let it cool down and run your ET again
take it to a dyno and see how much power your are making and start from there.
12.7 is really really bad, but dont worry whatever is wrong with your car a proper tuner will identify it and fix it.
When was the last time you serviced your car? do you drive your car alot or is it garaged most of the time?
If it was garaged prior to taking it to the track, then the timing of the ECU did not adapt yet. This happens alot in MB cars and most people dont know about it. If this is what happened, I suggest you hit your car really hard for about 50 miles before taking it to the track. Then, turn the engine off, let it cool down and run your ET again
09-14-2011, 03:08 PM
#12
MBWorld Fanatic!
Just took my 2006 SL65 to the track last night. Best run? 12.7 @ 113 mph. Worst run? 13.4 @ 112 mph. (Both with a 2.0 60FT)
Dentsity Altitude 2000 Feet
This is from a car that used to run 11.8 @ 124 mph 18 months ago.
IAT temps were in the 120's. So it's not an intercooler issue.
I have no idea where to start looking to figure out the problem.......
Boost doesn't seem to really come on until end of 2nd gear...and then it's not much.
No codes are being thrown.
Dentsity Altitude 2000 Feet
This is from a car that used to run 11.8 @ 124 mph 18 months ago.
IAT temps were in the 120's. So it's not an intercooler issue.
I have no idea where to start looking to figure out the problem.......
Boost doesn't seem to really come on until end of 2nd gear...and then it's not much.
No codes are being thrown.
09-17-2011, 11:04 AM
#13
Member
Thread Starter
Join Date: May 2004
Location: Texas
Posts: 165
Likes: 0
Received 0 Likes
on
0 Posts
2004 E55
The car is currently at the shop (Moorsepeed) in Austin. We'll see what they find.
Last edited by Happy2th; 09-17-2011 at 11:05 AM. Reason: addition
09-17-2011, 11:23 AM
#14
Senior Member
The car is currently at the shop (Moorsepeed) in Austin. We'll see what they find.
Rich, definitely let us know what the issue was. I have no doubt you will be up and running with full power in no time.
Rich, definitely let us know what the issue was. I have no doubt you will be up and running with full power in no time.
09-18-2011, 08:56 AM
#15
Member
Thread Starter
Join Date: May 2004
Location: Texas
Posts: 165
Likes: 0
Received 0 Likes
on
0 Posts
2004 E55
I hope so! It's been running slow for a long time......
If I could get this car to trap the same speed as my Lambo I'd be in Heaven!
09-02-2012, 12:49 PM
#16
Senior Member
Update?
Rich,
Did you ever get to the bottom of this? My SL65 is also feeling depressingly sluggish lately. New IC pump - properly bled - no air pockets. I have to wonder if I have a boost leak or sensor issue. Knowing what you found sure would help. Thanks!
Did you ever get to the bottom of this? My SL65 is also feeling depressingly sluggish lately. New IC pump - properly bled - no air pockets. I have to wonder if I have a boost leak or sensor issue. Knowing what you found sure would help. Thanks!
09-03-2012, 12:17 PM
#18
Senior Member
Thanks! I've got a good IC pump and Kleemann ECU/TCU tuning. So I wonder if I have a sensor issue?
Did you also discover at one time that you had a loose air inlet clamp on the boosted side of your intake plumbing that cause a loss of boost pressure? Maybe I was thinking of a post by another forum member.
Did you also discover at one time that you had a loose air inlet clamp on the boosted side of your intake plumbing that cause a loss of boost pressure? Maybe I was thinking of a post by another forum member.
Last edited by PDC; 09-03-2012 at 12:19 PM. Reason: P.S.
05-02-2016, 07:49 AM
#19
05-03-2016, 01:14 AM
#20
05-14-2016, 07:06 PM
#21
The following users liked this post:
boostd (05-14-2016)
05-14-2016, 08:08 PM
#23
