• Weistec M113 Kompressor (55 AMG) supercharger upgrade dynographs and video - 562 wheel horsepower 91 octane

      At long last here is what you have all been waiting for. Weistec announced their supercharger upgrade for the factory supercharged 55 AMG models (M113K V8) in September. The upgrade consists of a 3.0 liter supercharger which replaces the factory 2.1 liter offering superior efficiency and cooling. Simply an awesome upgrade that got everyone talking but in our instant gratification world people demanded dyno results not realizing just how much Weistec has had on their plate the past few months. Well, here they are, and Weistec delivered exactly as promised as they always do.

      562 horsepower to the wheels with the 82mm throttle body on 91 octane. Completely stock car other than the blower upgrade and associated tuning/parts. With the 74mm throttle body the car puts down 534 horsepower to the wheels showing that the throttle body upgrade is definitely worth it to eliminate a significant point of restriction.

      The graphs Weistec is advertising their power gains with show 534 wheel horsepower with the 84mm throttle body and 512 wheel horsepower with the 74mm. They have hit up to 562 but Weistec is advertising the more conservative numbers. Speak softly and carry a big stick so to speak. Better to over-deliver than under-deliver so keep this in mind when looking at the graphs that a more aggressive tune/setup will obviously net more power but they prefer to be conservative.

      Baseline on the car was 398 horsepower to the wheels, 91 octane, completely stock in SAE correction on a dynojet. With an 82mm throttle body, the Weistec supercharger upgrade kit, and a full exhaust, cracking the 600 wheel horsepower mark is certainly well within reason. Add some race gas and more boost... and well, this is quite simply one hell of an upgrade for 55 AMG's.

      Thank you to Weistec for the graph and details. Also for providing the community with a solid supercharger upgrade at long last for the M113K.







      This article was originally published in forum thread: Weistec M113 Kompressor (55 AMG) supercharger upgrade dynograph and videos + 562 wheel horsepower 91 octane started by Sticky View original post
      Comments 13 Comments
      1. SL55K's Avatar
        SL55K -
        That supercharger whine just made me cry. Cant wait for my S/C to come
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SL55K Click here to enlarge
        That supercharger whine just made me cry. Cant wait for my S/C to come
        Should be getting any time and you should be very happy with the result. This is awesome.

        Can't wait to see somebody crank one of these up with some big boost and race gas...
      1. Fast Lane's Avatar
        Fast Lane -
        Now I kind of wish that I never sold my SL55Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Fast Lane Click here to enlarge
        Now I kind of wish that I never sold my SL55Click here to enlarge
        Time moves on, no regrets.
      1. SL55K's Avatar
        SL55K -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Should be getting any time and you should be very happy with the result. This is awesome.

        Can't wait to see somebody crank one of these up with some big boost and race gas...
        Looking forward for the results actually Click here to enlarge 562rwhp on the normal race gas with the 82mm throttle body + standard M113K engine.
        Lets see what my SL55 is capable of producing, 105 octane, 84mm throttle body, and some goodies already stored in., hopefully something above 600rwhp, well these are just numbers and I'm more than positive Weistec will make me a happy customer since I am already hitting 550rwhp using 95 octane and an 80mm throttle body.

        One thing I really like with the 3.0 S/C from Weistec is that I wont be experiencing anymore heat soak from my 2.1 S/C from AMG. Gave the car some runs a couple of days ago and I could feel the car was dying on me. Car has 55,000 miles on it and it was time I refreshed the life of my car. Worked a lot to make my car look like this, and its about time I make my car run like the wind Click here to enlarge

        @0-60Motorsports and I have been focusing a lot lately on the performance of the car, since very soon I'll be achieving that, its time I focused on the cooling of the car. Only mods I have so far are the MHP Thermostat. A very large Heat Exchanger kit is on the way, hopefully in a few days it will be on the island and then the build begins
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SL55K Click here to enlarge
        562rwhp on the normal race gas with the 82mm throttle body + standard M113K engine.
        That was just on 91 octane.

        Click here to enlarge Originally Posted by SL55K Click here to enlarge
        One thing I really like with the 3.0 S/C from Weistec is that I wont be experiencing anymore heat soak from my 2.1 S/C from AMG.
        Yep should be a large difference in that regard.
      1. dcmetro's Avatar
        dcmetro -
        I have a few questions.

        Does the system retain the stock ECU ?

        How does the Weistec intercooler work ? Does it use the stock heat exchanger and Intercooler pump ?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dcmetro Click here to enlarge
        Does the system retain the stock ECU ?
        Yes.

        Click here to enlarge Originally Posted by dcmetro Click here to enlarge
        How does the Weistec intercooler work ? Does it use the stock heat exchanger and Intercooler pump ?
        Please read through this and see if you still have questions: http://www.benzboost.com/content.php...-55-AMG-models
      1. RedBullJnky's Avatar
        RedBullJnky -
        Click here to enlarge Originally Posted by SL55K Click here to enlarge
        Looking forward for the results actually Click here to enlarge 562rwhp on the normal race gas with the 82mm throttle body + standard M113K engine. Lets see what my SL55 is capable of producing, 105 octane, 84mm throttle body, and some goodies already stored in., hopefully something above 600rwhp, well these are just numbers and I'm more than positive Weistec will make me a happy customer since I am already hitting 550rwhp using 95 octane and an 80mm throttle body.One thing I really like with the 3.0 S/C from Weistec is that I wont be experiencing anymore heat soak from my 2.1 S/C from AMG. Gave the car some runs a couple of days ago and I could feel the car was dying on me. Car has 55,000 miles on it and it was time I refreshed the life of my car. Worked a lot to make my car look like this, and its about time I make my car run like the wind Click here to enlarge@0-60Motorsports and I have been focusing a lot lately on the performance of the car, since very soon I'll be achieving that, its time I focused on the cooling of the car. Only mods I have so far are the MHP Thermostat. A very large Heat Exchanger kit is on the way, hopefully in a few days it will be on the island and then the build begins
        Looking forward to seeing this. Last week I made 540rwhp on 93oct in my E. I want to see what it does to your car.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by RedBullJnky Click here to enlarge
        Looking forward to seeing this. Last week I made 540rwhp on 93oct in my E. I want to see what it does to your car.
        It's going to be more efficient no matter what. There is simply no way the stock AMG blower can match it per pound of boost. 540 is a sick number.
      1. Matthew049's Avatar
        Matthew049 -
        sticky, i hope you can help me w some of these questions. if i go ahead w the supercharger and throttle upgrade that pushes the cost up to $10,200.
        1. would i also then need the ECU and TCU upgrades? that's like another $1800.
        2. would i need to get the cooling stuff (the pump upgrade and the ice trunk thing) especially since im in phoenix, arizona.
        3. what's the cost to have the supercharger and throttle upgrade installed along w the other stuff?
        4. is it worth doing to a car that's got 80,000 miles on it already?? 2004 SL55 AMG. im wondering if it's too old to throw a bunch of modifications on.

        thank you!!!!!!!!!!!!!!!
      1. Weistec's Avatar
        Weistec -
        Matthew, we would be happy to answer the questions you listed.

        First, our supercharger system is equipped with the proper ECU calibration. You do not need to purchase the additional tune when purchasing the supercharger system.

        Our TCU upgrade is a great addition to any 55K however it is not necessary. Shift response and firmness becomes much better, and we also remove some of the torque limitations to put the power to the ground.

        Cooling is a big part of power and we always suggest running our trunk ice tank if you want the best possible results.

        Our shop test car now has about 110,000 miles and it is running very strong. Proper installation and maintenance aids in the longevity of any engine and especially these.

        The cost of our supercharger system is $8,649 and the 82mm throttle body is $1,240. From here the ice tank is $699.99 and I would recommend a spark plug change to a colder set of plugs which we also sell from 279.99.

        Total cost is right around $10,900 shipped. Installation does vary depending on the shop however it shouldn't be much. Please email us at sales@Weistec.com and I can give you more information on the parts and installation. Thank you!

        Weistec Engineering
      1. Matthew049's Avatar
        Matthew049 -
        great, thank you!!!
        i'll shop around and look into prices for installation. that definitely helps w the basics tho!