C63 AMG (W204) 2008 - 2015
Sponsored by:
Sponsored by:

Modifying stock belt tensioner for supercharged applications

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 12, 2020 | 10:30 PM
  #1  
Phil1305's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2017
Posts: 391
Likes: 233
C63
Modifying stock belt tensioner for supercharged applications

Just like the title says!

Does anyone know what spring weistec uses to modify the stock tensioner for the supercharged guys? I want to be proactive and get my old tensioner moded and ready for when my current one gets lazy and I refuse to pay 500 for a tensioner. That's absurd.
Reply
Old Dec 13, 2020 | 04:58 PM
  #2  
immelman's Avatar
Member
 
Joined: Feb 2012
Posts: 173
Likes: 6
C63 AMG
Originally Posted by Phil1305
Just like the title says!

Does anyone know what spring weistec uses to modify the stock tensioner for the supercharged guys? I want to be proactive and get my old tensioner moded and ready for when my current one gets lazy and I refuse to pay 500 for a tensioner. That's absurd.
Please let me know when you find out. We share the same concern. I have researched this too. I wish someone made a purpose built tensioner for the S/C setups on these cars. The weistec mod is kind of cheap imo. As you are aware they take the stock one apart and change the spring but their re assembly technique sometimes leaves slop in the tensioner. The first one they sent with the stage 2 kit cost me a hood insulation...
Reply
Old Dec 14, 2020 | 11:53 PM
  #3  
hachiroku's Avatar
SPONSOR
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2014
Posts: 3,647
Likes: 818
From: Worldwide
2007 Mercedes E63 AMG
i wonder if all it takes is winding the thing 1 more revolution.
__________________
-BARRY

​​​Follow us on instagram @eightysixtuned
https://www.eightysixtuned.com
Reply
Old Dec 14, 2020 | 11:54 PM
  #4  
Phil1305's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2017
Posts: 391
Likes: 233
C63
Originally Posted by hachiroku
i wonder if all it takes is winding the thing 1 more revolution.
thats possible, I haven't taken it apart yet or anything to find out.
Reply
Old Dec 15, 2020 | 11:25 AM
  #5  
immelman's Avatar
Member
 
Joined: Feb 2012
Posts: 173
Likes: 6
C63 AMG
If its like the other models I have seen in the past the spring is too small and does not even wrap a full revolution. It would basically bind and twist if you tried to wrap it anymore. One of the other biggest issues with the weistec one is the re assembly process allows the two halves of the tensioner to twist to the side if it is not done properly. To explain further it appears that they take a stock tensioner and mill of the head of the main shaft to separate the unit or two halves in order to install a higher rate spring in the center. When they put the two halves back together they re insert the old shaft and weld on a new head (it looks like a washer). This imo leaves more slack in the unit because of the way the new head is welded on.
Reply
Old Dec 15, 2020 | 12:14 PM
  #6  
hachiroku's Avatar
SPONSOR
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2014
Posts: 3,647
Likes: 818
From: Worldwide
2007 Mercedes E63 AMG
I see... maybe it's a spring out of an LS tensioner. I know many aftermarket big boy superchargers use an LS tensioner or a modified LS tensioner.
__________________
-BARRY

​​​Follow us on instagram @eightysixtuned
https://www.eightysixtuned.com
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 10:42 AM.

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