SL55/63/65/R230 AMG: Treynor, dyno numbers?
Thread Starter
Member
Joined: Feb 2002
Posts: 231
Likes: 1
From: Sweden, Europe
AMG
Treynor, dyno numbers?
Originally Posted by treynor
I've driven it some more since last I posted. It is indeed faster than stink, and the midrange is just insane. I'm going to try to get some more in-car video this weekend to compare acceleration vs time again. I have a dyno appt for Sat 12/4
Banned
Joined: Mar 2003
Posts: 602
Likes: 1
SL65, 911
The initial dyno session did not go well. It's not clear what happened - the car ran rich and was down on power, the right rear brake activated and overheated during the run, and the "check engine" light illuminated at redline. It could have been a problem with the ECU, the car, or the dyno itself - we don't know yet. Kleemann is having a look at the results and is going to propose a path forward shortly.
The in-car acceleration tests did not match the dyno results. The results I got were within a few percent of stock, and the differences might be attributable to weather or fuel octane.
Stay tuned for more results.
The in-car acceleration tests did not match the dyno results. The results I got were within a few percent of stock, and the differences might be attributable to weather or fuel octane.
Stay tuned for more results.
Super Member
Joined: Aug 2003
Posts: 834
Likes: 0
From: Manchester, UK
Mercedes-Benz A170 CDI
Ben do Kleemann/renntech offer a warranty to cover the engine and transmission blowing up after you purchase any of their ECU products? How long is it, can you ask them to extend it?
Super Member
Joined: Sep 2004
Posts: 582
Likes: 0
Renntech is the only company I know that will cover non-modified parts of the drivetrain when they do engine and/or transmission work. They match the factory warranty for no extra cost.
Great company.
Kleemann warrants the parts for around a year, but they do not warrant any non-modified parts. That means if a supercharger blows your tranny, then you get to pay for a tranny because mercedes sure isn't going to pay up.
Great company.
Kleemann warrants the parts for around a year, but they do not warrant any non-modified parts. That means if a supercharger blows your tranny, then you get to pay for a tranny because mercedes sure isn't going to pay up.
Banned
Joined: Mar 2003
Posts: 602
Likes: 1
SL65, 911
An update - it's not clear why the Kleemann ECU failed to provide measureable performance gains on my SL65, although it may be due to gasoline octane here in NorCal (91) or cold temps. The car DID feel faster initially, although that might just be the infamously inaccurate butt-dyno 
Regardless, I was not able to measure any performance gains over stock in actual testing, either on the dyno or in timed acceleration runs.
Sooo... the Kleemann programming goes out and the RENNtech programming goes in next week. As is my wont, I'll let you guys know how it works out as soon as I have the ECUs back and some test data to report.
Ben
Regardless, I was not able to measure any performance gains over stock in actual testing, either on the dyno or in timed acceleration runs.Sooo... the Kleemann programming goes out and the RENNtech programming goes in next week. As is my wont, I'll let you guys know how it works out as soon as I have the ECUs back and some test data to report.
Ben
Last edited by treynor; Dec 13, 2004 at 02:33 AM.
Banned
Joined: Mar 2003
Posts: 602
Likes: 1
SL65, 911
An update - the "check engine" light was the result of a malfunction in the emissions system (the purge valve wiring was faulty from the factory) unrelated to the Kleemann ECU. MB fixed it, and the car now pulls cleanly up to 140... on a remote test track, of course
Trending Topics
Thread Starter
Member
Joined: Feb 2002
Posts: 231
Likes: 1
From: Sweden, Europe
AMG
Originally Posted by treynor
An update - the "check engine" light was the result of a malfunction in the emissions system (the purge valve wiring was faulty from the factory) unrelated to the Kleemann ECU. MB fixed it, and the car now pulls cleanly up to 140... on a remote test track, of course
MB World Stories
The Best of Mercedes & AMG
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
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Senior Member
Joined: Jul 2004
Posts: 318
Likes: 0
From: Boston, MA
2004 C32 AMG
Does the aftermarket ECU disable all the adjustable settings in the car - for example, putting the vehicle in "Dyno Mode" so traction control/ESP doesn't freak out?
I saw a guy accidentally dyno with his ebrake on in his brand new 03 Mustang Mach1. It wasn't a pretty site - hope your rotars are ok...
I saw a guy accidentally dyno with his ebrake on in his brand new 03 Mustang Mach1. It wasn't a pretty site - hope your rotars are ok...
Banned
Joined: Mar 2003
Posts: 602
Likes: 1
SL65, 911
The car behaves just the same with the ECU as it did stock - I put it into dyno mode before beginning the run and it went with nary a hitch.
543 RWHP, 726 RWTQ SAE. 555 RWHP / 742 RWTQ uncorrected. Uncontrolled wheelspin in 2nd gear -- from a 50 MPH roll -- with ESP off. Gad
543 RWHP, 726 RWTQ SAE. 555 RWHP / 742 RWTQ uncorrected. Uncontrolled wheelspin in 2nd gear -- from a 50 MPH roll -- with ESP off. Gad
Senior Member
Joined: Jul 2004
Posts: 318
Likes: 0
From: Boston, MA
2004 C32 AMG
Originally Posted by treynor
The car behaves just the same with the ECU as it did stock - I put it into dyno mode before beginning the run and it went with nary a hitch.
543 RWHP, 726 RWTQ SAE. 555 RWHP / 742 RWTQ uncorrected. Uncontrolled wheelspin in 2nd gear -- from a 50 MPH roll -- with ESP off. Gad
543 RWHP, 726 RWTQ SAE. 555 RWHP / 742 RWTQ uncorrected. Uncontrolled wheelspin in 2nd gear -- from a 50 MPH roll -- with ESP off. Gad
why 2nd?
