Performance Upgrades & Tuning Discuss general performance and tuning enhancements for your Mercedes-Benz.

2003 CL/SL 55 Upgrades??

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 16, 2002 | 02:12 PM
  #1  
AndrewEclipse's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Aug 2002
Posts: 1,111
Likes: 1
It Varies
2003 CL/SL 55 Upgrades??

Hi,

I will be taking delivery on my 2003 CL55 in a few months but was wondering if any aftermarket companies are doing any type of upgrades at all for the 500h.p supercharged engine. Now I understand why people will be looking at this post and saying "Why does that numb nuts want more power?", but I simply feel a few minor mods from these companies can easily add on a good 50-60 true h.p. If anyone has any information from Kleeman...etc....just let me know, id greatly appreciate it.
Reply
Old Sep 16, 2002 | 02:25 PM
  #2  
Sleestack's Avatar
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 1,687
Likes: 0
From: Bay Area, CA
Ther is never enogh hp and torque... trust me. My CLK (at 3300 lbs) had 500 hp and 47o lb/ft torque and I thought it needed more. You should give Evosport a call (888-520-9971). They are always up to date on the latest modifications available for Mercedes.
Reply
Old Sep 16, 2002 | 02:43 PM
  #3  
Sleestack's Avatar
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 1,687
Likes: 0
From: Bay Area, CA
The new CL and SL55 are already supercharged... I think getting 50-60 hp out of those cars will require headers, cams, exhaust, etc.
Reply
Old Sep 16, 2002 | 03:35 PM
  #4  
AndrewEclipse's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Aug 2002
Posts: 1,111
Likes: 1
It Varies
Thanks, i'll give Evosport a call. Hopefully they can give me an update on whats going on. I'll call today or tomorrow and post what I find out.
Reply
Old Sep 18, 2002 | 01:35 PM
  #5  
AndrewEclipse's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Aug 2002
Posts: 1,111
Likes: 1
It Varies
Exclamation Kleeman Supercharger Upgrade!

Couldnt get through to Evosport, but talked to Kleeman in Colorado Springs.

They will be releasing a supercharger replacement for all the v8 compressor models. Prototype is already being tested in Denmark and will be released in January to the U.S. 610h.p. total!!!!
Reply
Old Sep 18, 2002 | 02:43 PM
  #6  
awiner's Avatar
MBWorld Fanatic!
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Nov 2001
Posts: 6,340
Likes: 22
From: Southern California, USA
2003 CL55 AMG
Re: Kleeman Supercharger Upgrade!

Originally posted by AndrewEclipse
Couldnt get through to Evosport, but talked to Kleeman in Colorado Springs.

They will be releasing a supercharger replacement for all the v8 compressor models. Prototype is already being tested in Denmark and will be released in January to the U.S. 610h.p. total!!!!
SWEET....
Reply
Old Sep 18, 2002 | 03:00 PM
  #7  
Sleestack's Avatar
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 1,687
Likes: 0
From: Bay Area, CA
That's great.. their products rock... a 610 hp CL would make for a mighty fine luxury cruiser.
Reply
Old Sep 18, 2002 | 06:51 PM
  #8  
Mach430's Avatar
Out Of Control!!
 
Joined: Nov 2001
Posts: 35,855
Likes: 3
From: Southern CA
Andrew,

I am sorry you were unable to get through to us. You can reach me directly any time at extension 11, or email me at ben@evosport.com.

Thanks

Ben
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Sep 19, 2002 | 12:02 PM
  #9  
AndrewEclipse's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Aug 2002
Posts: 1,111
Likes: 1
It Varies
Thanks Ben. I wrote down your extension number and you should be hearing from me soon. Just let me know if you find out any more information about Kleeman's upgrades for the 2003 supercharged V8.
Reply
Old Oct 5, 2002 | 05:09 PM
  #10  
WRXOWNER's Avatar
Newbie
 
Joined: Oct 2002
Posts: 13
Likes: 0
From: Philadelphia
Subaru WRX; C32 one day
Sleestack, you stated that these cars are already supercharged and that it will be hard to get 50 more horsepower. I think it is the exact opposite. On cars with forced induction, a supercharger in this case, a chip, pulley, and exhaust should give quite a bit of power. Also, you are not upgrading a WRX here (we have week transmissions and crappy brakes). These cars have superior internals, incredible brakes, great transmissions, etc. I say go for another 100 hp (not that you need it, but...).
Reply
Old Oct 7, 2002 | 02:01 PM
  #11  
Sleestack's Avatar
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 1,687
Likes: 0
From: Bay Area, CA
Originally posted by WRXOWNER
Sleestack, you stated that these cars are already supercharged and that it will be hard to get 50 more horsepower. I think it is the exact opposite. On cars with forced induction, a supercharger in this case, a chip, pulley, and exhaust should give quite a bit of power. Also, you are not upgrading a WRX here (we have week transmissions and crappy brakes). These cars have superior internals, incredible brakes, great transmissions, etc. I say go for another 100 hp (not that you need it, but...).
I didn't say it would be difficult, I just said that they are already SCed so a Kleemann SC on top of the AMG SC wouldn't be the answer. Kleemann is making a replacement SC which makes sense, however, 50 extra hp out of the stock setup is going to require some work (perhaps exhasut, cams, or computer, etc.) I know that turbo and SCed cars can get significant power gains by chipping, however, despite the integrity of Mercedes components, I'm not a huge fan of the shortcuts that most chips take.
Reply
Old Oct 7, 2002 | 02:19 PM
  #12  
AndrewEclipse's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Aug 2002
Posts: 1,111
Likes: 1
It Varies
Originally posted by Sleestack
I didn't say it would be difficult, I just said that they are already SCed so a Kleemann SC on top of the AMG SC wouldn't be the answer. Kleemann is making a replacement SC which makes sense, however, 50 extra hp out of the stock setup is going to require some work (perhaps exhasut, cams, or computer, etc.) I know that turbo and SCed cars can get significant power gains by chipping, however, despite the integrity of Mercedes components, I'm not a huge fan of the shortcuts that most chips take.
From what I understand, Renntech has the best chip in terms of thorough research and development before implementing it in their cars.
Reply
Old Oct 11, 2002 | 09:54 PM
  #13  
stephens's Avatar
MBWorld Fanatic!
 
Joined: Apr 2002
Posts: 1,256
Likes: 0
From: Melbourne, Australia
E55, F550, S600 Ducati 999
Upgrading the new SC 5.5L is at last going to yield some resonable and cost effective HP gains on the V8 AMG engine. However these will be nothing like the gains seen from turbo cars where it is far easier and cheaper to dramatically increase boost and intercooler capacity.
The stock SC on the new AMG can be used with a new chip, pulley and ideally an additional intercooler, Brabus have already done this for the SL55. You can undertake the mods yourself, with better power gains for SIGNIFICANTLY less money.This should yield something in the order of 50-75hp. I will be doing this on my E55 when it arrives and will probably spend less than $5000 US to do so.
From what I understand the Kleemann instalation will yield more power because of a more efficient SC design (less heat-greater charge density - more power) and more efficient intercooler (less heat - greater charge density -more power) than the factory AMG units. To equal the power of the Kleemann instal may be possible, but it would primarily involve supplementing the stock SC chargecooler/intercooler capacity rather than dialing in more boost. Also are the Kleemann numbers based on tuning for Euro spec fuel?
Reply
Old Oct 11, 2002 | 11:58 PM
  #14  
Cory @ Kleemann's Avatar
Former Vendor of MBWorld
 
Joined: Jul 2002
Posts: 807
Likes: 0
From: Colorado
Stephens-

The KLEEMANN spec is not for Euro Fuel. The 5.5 (actually 5.4) will make 610 anywhere in the world, save high altitude locations, where every engine is down 18%. In europe, they can expect to see as much as 640 with thier higher octane fuel.
Reply
Old Oct 12, 2002 | 12:27 AM
  #15  
AndrewEclipse's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Aug 2002
Posts: 1,111
Likes: 1
It Varies
Originally posted by CoryU
Stephens-

The KLEEMANN spec is not for Euro Fuel. The 5.5 (actually 5.4) will make 610 anywhere in the world, save high altitude locations, where every engine is down 18%. In europe, they can expect to see as much as 640 with thier higher octane fuel.

If Kleeman wants a CL55 prototype vehicle....just let me know.
Reply
Old Oct 14, 2002 | 10:23 AM
  #16  
dNA3D's Avatar
Member
 
Joined: Sep 2002
Posts: 181
Likes: 0
From: Brunei
Too Young To Drive
You could also talk to Renntech with their 575HP SL55 AMG.
Reply
Old Oct 14, 2002 | 10:45 AM
  #17  
Cory @ Kleemann's Avatar
Former Vendor of MBWorld
 
Joined: Jul 2002
Posts: 807
Likes: 0
From: Colorado
Originally posted by dNA3D
You could also talk to Renntech with their 575HP SL55 AMG.
$24,995 for an ECU upgrade, a larger crank pulley an exhaust system and an intercooler???? You've got to be kidding me. $25,000 for 82 HP!!??! What a joke!
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 04:04 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE