Need help on how to proceed with Supercharger upgrades
Thread Starter
Newbie
Joined: Jan 2025
Posts: 2
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2006 CL55 AMG
Need help on how to proceed with Supercharger upgrades
Hi everyone, I'm facing a dilema with my CL55's M113K, the supercharger bearing had torn itself to pieces and has been making the awful clattering noise for a while now, and during the past weekend at a cars and coffee, I chucked the belt on the Supercharger. Now due to this, almost everyone I've spoke to, and my friends included, had told me to just now go with a pulley setup,
Now keep in mind. This is coming from a bone stock M133K, there has been no upgrades done it, in the engine bay. The only modifications on the car are muffler and resonator deletes and ABC lowering links (front and rear).
At the moment due to the belt being off the idler and tensioner, the car is running N/A. I just want to hear from everyone on what is the best setup to go for, the ultimate goal is to ultimately make the Supercharger whine, but I am perfectly fine on having a small amount of power gains, since I'm also doing high flow intake filters from Weistec.
I'm also making this thread due to me reading a ton on belt wrap kits and a bunch of other stuff that is going to need to be done on the car in order for the smaller pulley to actually be functional. However, is there also other setups where I can get away with doing minimal changes to the pulley assembly? Or is everychange is going to need me to invest in a belt wrap kit, cooling upgrades, and tunes?
Thank you
Now keep in mind. This is coming from a bone stock M133K, there has been no upgrades done it, in the engine bay. The only modifications on the car are muffler and resonator deletes and ABC lowering links (front and rear).
At the moment due to the belt being off the idler and tensioner, the car is running N/A. I just want to hear from everyone on what is the best setup to go for, the ultimate goal is to ultimately make the Supercharger whine, but I am perfectly fine on having a small amount of power gains, since I'm also doing high flow intake filters from Weistec.
I'm also making this thread due to me reading a ton on belt wrap kits and a bunch of other stuff that is going to need to be done on the car in order for the smaller pulley to actually be functional. However, is there also other setups where I can get away with doing minimal changes to the pulley assembly? Or is everychange is going to need me to invest in a belt wrap kit, cooling upgrades, and tunes?
Thank you
Senior Member
Joined: Feb 2004
Posts: 283
Likes: 69
From: Baltimore, MD
93 Mustang GT, 94 Corvette ZR1, 2004 CL55 AMG, 2012 MP4-12c
Hey!
when you say the “bearing” is going up… is that the pulley bearing? Or the internal blower bearings?
how many miles are on your car? Ever replace the blower oil?
it may be in your best interest just to rebuild the blower to stock and run unmodified…
adding a smaller pulley is fun! But you need a tune, then you need split cooling, and at the age of these cars, you likely need all the main pullies replaced on the front of the engine, then you should probably upgrade the coolant pump, etc etc
water pumps, alternators, abc fluid, etc.
one thing leads to another and theres already no shortage of attention needing items on our cars at this age regardless of miles
when you say the “bearing” is going up… is that the pulley bearing? Or the internal blower bearings?
how many miles are on your car? Ever replace the blower oil?
it may be in your best interest just to rebuild the blower to stock and run unmodified…
adding a smaller pulley is fun! But you need a tune, then you need split cooling, and at the age of these cars, you likely need all the main pullies replaced on the front of the engine, then you should probably upgrade the coolant pump, etc etc
water pumps, alternators, abc fluid, etc.
one thing leads to another and theres already no shortage of attention needing items on our cars at this age regardless of miles
Thread Starter
Newbie
Joined: Jan 2025
Posts: 2
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2006 CL55 AMG
Hi Dgi, thank you for responding,
By what I meant on the bearing is the pulley bearing itself (the one that sits on the crank pulley bolt)
Mileage is halfway over 148k, Blower oil was changed out just over a year ago.
By what I meant on the bearing is the pulley bearing itself (the one that sits on the crank pulley bolt)
Mileage is halfway over 148k, Blower oil was changed out just over a year ago.
MBWorld Fanatic!
Joined: Feb 2012
Posts: 2,621
Likes: 1,215
From: Phoenix
222 S-65
So OP needs a crankshaft drive pulley?
There is no bearing in the crankshaft pulley.
If it is having a problem; replace with stock or a larger crank pulley to drive the supercharger more quickly.
There is no bearing in the crankshaft pulley.
If it is having a problem; replace with stock or a larger crank pulley to drive the supercharger more quickly.
Member
Joined: May 2020
Posts: 247
Likes: 57
From: Fort Worth
2005 CL55 AMG || 2005 CL65 AMG || 1989 560SEC
I replaced mine with a slightly smaller model then had it mail tuned.
It makes a good difference, but I live in texas (hot, engine pulls timing) so I don't always get all that power.
If you get a smaller pulley you WILL HAVE TO get another tune sent via mail ($1800 iirc) or on a dyno. If you have a stock differential you're just going to spin your wheels easier. 40+mph rolls will probably improve though.
You can replace the bearing in the stock pulley by punching it out (punch, hammer, 2 blocks of wood, set pulley on it with bearing opening in between the wood blocks). Then you get whatever the replacement bearing is (some kind of nachi iirc), put it in the freezer so the metal shrinks, put the pulley in the oven at 250 so it expands. After evceryting is hot and cold, slide the cold bearing into the hot pulley. Once they go back to room temp they'll be stuck together.
ez pz
