SL55 AMG, SL63 AMG, SL65 AMG (R230) 2002 - 2011 (2003 US for SL55 and 2004 for the SL65)

SL55/63/65/R230 AMG: Are Phenolic spacers worth it, & is race gas worth it & where to buy it?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Apr 12, 2012 | 02:27 PM
  #1  
SL65amg's Avatar
Thread Starter
Super Member
 
Joined: Mar 2004
Posts: 678
Likes: 0
'05 SL 55 Black/Black w/mods from Eurocharged/Kleemann/BuckheadImports
Question Are Phenolic spacers worth it, & is race gas worth it & where to buy it?

I've been hearing that phenolic spacers give no measurable benefits to the SL 55 engine, is this true or what do you guys think?


Also, I was thinking of ordering 5 gallon drums of race gas, will it give me more power? Will my SL 55's engine and/or ECU automatically detect and compensate for this? And if so, where is the best place online to buy it? I've already bought three 32 oz. bottles of torco accelerator race gas from amazon.com just to see how it feels.....it says to add atleast two bottles to every 10 gallons of gas.....how many gallons does the SL 55 tank hold? if there is 20 gallons, I'm assuming then I'll need 4 bottles, which is 128 ounces, about a gallon of race gas for every 20 gallons of normal 93 octane fuel.....it says on the bottle that this should then bring my car's octane up to 105.......how much more HP and torque will that get me usually?

Thanks guys for all your information and help!
Reply
Old Apr 12, 2012 | 03:12 PM
  #2  
B R's Avatar
B R
Senior Member
 
Joined: Oct 2010
Posts: 419
Likes: 0
From: Los Angeles, CA
2010 Taco
As far as gas or octane boosters go, it probably depends on what mods you have & how much boost you are making. The idea is to avoid pinging

Last edited by B R; Apr 12, 2012 at 03:14 PM.
Reply
Old Apr 12, 2012 | 03:21 PM
  #3  
SL65amg's Avatar
Thread Starter
Super Member
 
Joined: Mar 2004
Posts: 678
Likes: 0
'05 SL 55 Black/Black w/mods from Eurocharged/Kleemann/BuckheadImports
Question Ok cool....

Ok cool...
I've already bought the Eurocharged ECU, TCU, and 172 pulley upgrade...after my car gets out of the shop fixing some other stuff I'll do the eurocharged stuff...also I'll probably get the eurocharged heat exchanger and spark plugs in a few weeks too....and I've already bought the Johnson intercooler pump.....

I need to know exactly which kind of race gas to buy, and if so , what gains can I expect...and where to buy it...and also which ones to avoid or which ones could damage my car......

I'd still love to know more info about whether or not the phenolic spacers are a good idea and why/why not too.....

Thanks again!
Reply
Old Apr 12, 2012 | 09:20 PM
  #4  
SL65amg's Avatar
Thread Starter
Super Member
 
Joined: Mar 2004
Posts: 678
Likes: 0
'05 SL 55 Black/Black w/mods from Eurocharged/Kleemann/BuckheadImports
Question ?

?


Any more help with these issues would be greatly appreciated!
Reply
Old Apr 13, 2012 | 01:53 AM
  #5  
kustom2k1's Avatar
MBWorld Fanatic!
 
Joined: Feb 2009
Posts: 1,908
Likes: 17
From: Florida
03SL55
To get the full benefit of race gas you need to be tuned for it. The fuel and timing need to be adjusted accordingly. Tuned for high octane unleaded race fuel can add 15/20hp. I believe 101 from VP may be the highest rating in unleaded.
Reply
Old Apr 13, 2012 | 03:32 AM
  #6  
Havoc's Avatar
MBWorld Fanatic!
 
Joined: Dec 2007
Posts: 1,862
Likes: 5
From: Sin City
2005 E55 AMG - - 2005 SL55 AMG - - - - - - 2006 SLK55 AMG - - - - - - 2013 Ducati Diavel AMG -
Evosport's website states that their phenolic intake manifold spacers help reduce intake temperatures on the 55K by as much as 100 deg. F. Now how much of that translates to an increase in performance, that I do not know, but I would imagine the more mods one has the more beneficial these become.

http://www.evosport.com/product/prod...VO.PER.M5K.PS1
Reply
Old Apr 13, 2012 | 11:51 AM
  #7  
SL65amg's Avatar
Thread Starter
Super Member
 
Joined: Mar 2004
Posts: 678
Likes: 0
'05 SL 55 Black/Black w/mods from Eurocharged/Kleemann/BuckheadImports
Yeah, the evosport phenolic spacers are the only ones I've seen for sale so far for the sl 55...I need to call them I guess for more info......I only know what I've heard.....with the few performance mods im getting done to my sl 55, then maybe it could be beneficial? In a few weeks, besides the ecu/tcu/pulley, im just trying to think ahead to what the next best few additional steps should be? Maybe eurocharged heat exchanger and spark plugs, phenolic spacers, eurocharged fuel injectors, and quaife lsd? Then later down the road maybe the eurocharged fuel rails or headers or throttle body? I have a few months to decide on all that.......and as far as race gas.....u say this vp 101 race gas is the best for my car? Can I just call vp directly to order? Or should I buy large quantities of torco accelerator and just add to each tank? If I get my ecu done to compensate for race gas, does that mean that after that I can only run race gas, or will normal 93 octane fuel make the car not run correctly? Thanks again for all the info guys, I sincerely appreciate it!

Last edited by SL65amg; Apr 13, 2012 at 11:56 AM.
Reply
Old Apr 18, 2012 | 10:04 PM
  #8  
SL65amg's Avatar
Thread Starter
Super Member
 
Joined: Mar 2004
Posts: 678
Likes: 0
'05 SL 55 Black/Black w/mods from Eurocharged/Kleemann/BuckheadImports
Question ?

?
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 Apr 18, 2012 | 10:50 PM
  #9  
kustom2k1's Avatar
MBWorld Fanatic!
 
Joined: Feb 2009
Posts: 1,908
Likes: 17
From: Florida
03SL55
You can pick up the OBD tune module that holds multiple tunes. ECU, pulley, headers. Injectors depend on how big you go with the pulley. Get a race gas and a pump gas tune and your good to go.
Reply
Old Dec 18, 2012 | 04:32 AM
  #10  
amok55amg's Avatar
Super Member
 
Joined: Feb 2011
Posts: 571
Likes: 5
From: Sweden
SL55AMG + SL600 + E320 + A180
Originally Posted by kustom2k1
You can pick up the OBD tune module that holds multiple tunes. ECU, pulley, headers. Injectors depend on how big you go with the pulley. Get a race gas and a pump gas tune and your good to go.
How do I decide what length and size for the injectors?

I have bought this small supercharge pulley from Eurochargde - I waslooking for new Bosch EV14 52lb/550cc injectors 48 mm. - should be top-of-the-line?
Reply
Old Dec 18, 2012 | 10:57 AM
  #11  
alx's Avatar
alx
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 4,268
Likes: 253
Originally Posted by Havoc
Evosport's website states that their phenolic intake manifold spacers help reduce intake temperatures on the 55K by as much as 100 deg. F. Now how much of that translates to an increase in performance, that I do not know, but I would imagine the more mods one has the more beneficial these become
I hope you meant 10 degrees f. 100 degrees drop requires a freon- based cooling and even then it is doubtful.
Reply
Old Dec 18, 2012 | 12:26 PM
  #12  
WHTEVO's Avatar
MBWorld Fanatic!
15 Year Member
 
Joined: Jul 2010
Posts: 1,477
Likes: 1
From: Colorado
07' SL65, 04' E55, 03' Evo8, 08' GSXR, DSM's...
/\ I was thinking the same thing.

Like someone else said, you will not see the benefits of using race gas unless you tune for it. Personally, if i was going to run some sort of other fuel, i would run E85 if it is available in your area. On my "race" car, we saw more benefits from E85 then we did with leaded race gas. Those little cans of octane boosters are a waste of money, and don't put leaded race gas in your car if you're still running cats and normal o2 sensors.

Good luck.

Aaron
Reply
Old Dec 18, 2012 | 08:55 PM
  #13  
kustom2k1's Avatar
MBWorld Fanatic!
 
Joined: Feb 2009
Posts: 1,908
Likes: 17
From: Florida
03SL55
Originally Posted by amok55amg
How do I decide what length and size for the injectors?

I have bought this small supercharge pulley from Eurochargde - I waslooking for new Bosch EV14 52lb/550cc injectors 48 mm. - should be top-of-the-line?

Those would work, I bought mine from TTM, combined with fuel rail. Yes it may be pricey, but I trust Bruce and his cars never disappoint. I think you will be very happy with the smaller supercharger pulley, I added it to my combo and made 20hp and almost 40ft of torque. Pretty impressive when you take into consideration I was already running a 168 crank pulley.
Reply
Old Dec 19, 2012 | 12:53 AM
  #14  
alx's Avatar
alx
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 4,268
Likes: 253
Originally Posted by WHTEVO
/\ I was thinking the same thing.

Like someone else said, you will not see the benefits of using race gas unless you tune for it. Personally, if i was going to run some sort of other fuel, i would run E85 if it is available in your area. On my "race" car, we saw more benefits from E85 then we did with leaded race gas. Those little cans of octane boosters are a waste of money, and don't put leaded race gas in your car if you're still running cats and normal o2 sensors.

Good luck.

Aaron
E85 will chew through the whole fuel system- anything stock rubber will go bad fairly quickly.
Reply
Old Dec 24, 2012 | 03:24 PM
  #15  
amok55amg's Avatar
Super Member
 
Joined: Feb 2011
Posts: 571
Likes: 5
From: Sweden
SL55AMG + SL600 + E320 + A180
Originally Posted by SL65amg
Yeah, the evosport phenolic spacers are the only ones I've seen for sale so far for the sl 55...I need to call them I guess for more info......I only know what I've heard.....with the few performance mods im getting done to my sl 55, then maybe it could be beneficial? In a few weeks, besides the ecu/tcu/pulley, im just trying to think ahead to what the next best few additional steps should be? Maybe eurocharged heat exchanger and spark plugs, phenolic spacers, eurocharged fuel injectors, and quaife lsd? Then later down the road maybe the eurocharged fuel rails or headers or throttle body? I have a few months to decide on all that.......and as far as race gas.....u say this vp 101 race gas is the best for my car? Can I just call vp directly to order? Or should I buy large quantities of torco accelerator and just add to each tank? If I get my ecu done to compensate for race gas, does that mean that after that I can only run race gas, or will normal 93 octane fuel make the car not run correctly? Thanks again for all the info guys, I sincerely appreciate it!

http://www.eurocharged.com/products/...-engine-detail
Reply
Old Nov 25, 2019 | 06:38 PM
  #16  
pussgalore's Avatar
Member
 
Joined: Aug 2018
Posts: 244
Likes: 24
na
Deleted
Reply
Old Nov 27, 2019 | 07:59 PM
  #17  
okbarnett's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Aug 2008
Posts: 2,498
Likes: 222
Porsche guy who drives SL63 w/ perf pkg AND perf suspension
i was told by a national tuner that they measured the temp with spacers and only got less than 5 degree drop, and abandoned the idea
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 07:52 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