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ENGINEERING THE FUTURE OF PERFORMANCE ™
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Stage 3 M156 Supercharger System
Purchase Stage 3 M156 Supercharger System
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    Stage 3 M156 Supercharger System

  • Advertised gains are estimates of HP and Torque “at the engine” calculated from gains as measured on a Dynojet Dynamometer in ideal conditions and typically show the largest possible change.  Actual gains are dependent on the following: Learn More about Crank HP Vs Wheel HP

    Model – Manufacturers use the same engine in multiple model vehicles and often times they are in a different state of tune, for example: 2008 C63 and a 2008 CLK Black Series.  Both have the same engine, but the C63 has 451hp while the CLK63 has 500hp.  Naturally the C63 will show more gains as it starts at a lower level.

    Model Year – Similar to above, as time progresses, Manufacturers tend to slightly increase power output via software from one year to the next or offer “Performance Packages” with increased power.  The engines remain largely unaltered and as a result, final tuned output remains the same, while the gains are lower as the starting point is now higher.

    Fuel – Fuel quality is HIGHLY important with performance vehicles.  Low quality and/or low octane fuel will greatly impact engine output and potentially even engine health.  Top tier brand premium fuels should always be used to achieve the best results possible.

    Drivetrain – All wheel drive has higher drivetrain losses than rear wheel drive.  This results in lower numbers when testing on a chassis dyno.  Wheel/tire size and weight will also impact chassis dyno results

    Weather/Conditions – Temperature, humidity, altitude, and air density all impact engine performance.  Heat, high humidity, and thin air will all work towards reducing engine output

    Engine Health – Higher miles tends to result in increased build up and lower compression which can and will impact engine output.  Properly maintained engines will have better performance than abused or neglected engines.

    Supporting modifications – The highest power levels require supporting modifications.  Depending on the engine, this could mean forged internals, built transmission, upgraded fuel system, 110+ octane race fuel, etc.

  • $15,599.00 $15,599.00

  • Prop 65 warning
    Warning

    This product can expose you to chemicals including carbon black, silica - crystalline, formaldehyde, and lead which are known to the State of California to cause cancer, and lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Weistec Horsepower 740
Weistec Torque 630
Manufacturer Weistec
Street legal in all the US States No
Engine Family M156
Stock Horsepower 451
See more
year make model trim engine
2011 Mercedes-Benz SL63 AMG Base (R230) NA 6.2L V8 (M156)
2010 Mercedes-Benz SL63 AMG Base (R230) NA 6.2L V8 (M156)
2009 Mercedes-Benz SL63 AMG Base (R230) NA 6.2L V8 (M156)
2008 Mercedes-Benz SL63 AMG Base (R230) NA 6.2L V8 (M156)
2007 Mercedes-Benz R63 AMG Base (W251) NA 6.2L V8 (M156)
2011 Mercedes-Benz ML63 AMG Base (W164) NA 6.2L V8 (M156)
See more

Product Description



Race-only applications. Requires High Flow Exhaust, Removal of Secondary Air Injection Valves, ROW Airboxes,and Spark Plugs. Built Transmission Recommended.

Compare Supercharger Stages

Specifications - 2.3L Twin Screw Compressor
- 6 PSI Pulley
CARB Legal YES
Horsepower (WHP) 637
Torque (ft-lb) 560
Requirements - Stock Vehicle
Recommended Upgrades - Weistec Air Filters
- Weistec Oil/Air Separator
- Weistec Trunk Ice Tank
- ROW Air Box Set
Price USD** $11,999

VIEW PAGE
Specifications - 2.3L Twin Screw Compressor
- 8 PSI Pulley
CARB Legal NO
Horsepower (WHP) 672
Torque (ft-lb) 662
Requirements - High Flow Exhaust
Recommended Upgrades - Weistec Air Filters
- Weistec Oil/Air Separator
- Weistec Trunk Ice Tank
- ROW Air Box Set
Price USD** $11,999

VIEW PAGE
Specifications - 3.0L Twin Screw Compressor
- 12 PSI Pulley
- 8 Rib Belt Drive
CARB Legal NO
Horsepower (WHP) 740+
Torque (ft-lb) 630+
Requirements - High Flow Exhaust
- M156 Spark Plug
- Remove Secondary Air Injection
- ROW Air Box Set
Recommended Upgrades - Weistec Air Filters
- Weistec Oil/Air Separator
- Weistec Trunk Ice Tank
Price USD** $15,599
Stage 1 Stage 2 Stage 3
Specifications

- 2.3L Twin Screw Compressor
- 6 PSI Pulley

- 2.3L Twin Screw Compressor
- 8 PSI Pulley

- 3.0L Twin Screw Compressor
- 8 PSI Pulley
- 8 Rib Drive

CARB Legal

YES

    NO

NO

Horsepower (WHP)
    637
672 740+
Torque (ft-lb) 560 662 630+
Requirements

- Stock Vehicle

- High Flow Exhaust

- High Flow Exhaust
- M156 Spark Plug
- Remove Secondary Air Injection
- ROW Air Box Set

Recommended Upgrades

- Weistec Air Filters
- Weistec Oil/Air Separator
- Weistec Trunk Ice Tank
- ROW Air Box Set

- Weistec Air Filters
- Weistec Oil/Air Separator
- Weistec Trunk Ice Tank
- ROW Air Box Set

- Weistec Air Filters
- Weistec Oil/Air Separator
- Weistec Trunk Ice Tank

Price USD**

$11,999

$11,999

$15,599


**Price may vary by vehicle model.

The Weistec Stage 3 Supercharger System was designed and introduced to meet the needs of customers that kept asking us for more power even after installing our Stage 2 system. Incorporating many years of Mercedes supercharger knowledge, the larger 3.0L twin-screw is the pinnacle of Weistec's supercharger systems. Many people now go straight to Stage 3 from stock, but those that already have a Stage 1 or a Stage 2 supercharger can get our Stage 3 upgrade system to convert to Stage 3

Using our 3.0L Twin Screw, we have set the record for the World's Fastest Mercedes with our Stage 3 M156 System and supporting Weistec products, generating engine power levels exceeding 1000 Horsepower.

Air conditioning pulley selection.

World Record CLK 63 AMG Black Series Built by Weistec

We can our Mercedes Benz AMG CLK 63 Black Series to Atco Raceway in New Jersey and set the world record for the fastest Mercedes. We finished with 9.75 secs at 151.95 MPH. 60-130 MPH in 4.32 secs!



Before and After 1/4 Mile /// -2 Seconds, +15 MPH

David Dimitrion built C63 with Weistec Supercharger. 1/4 mile testing of Mercedes Benz C63 Coupe before and after the installation of a Weistec 3.0 L Supercharger by David Dimitrion. As you will see in the video, the results are impressive. The Weistec Supercharger knock 2 seconds off the C63's 1/4 mile time (12.5 to 10.5 sec) and picked up 15 mph (112 to 127 mph).



M156 8 RIb Crank Pulley

8-Rib Pulley System

Our Stage 3 Supercharger runs an 8-Rib pulley system. The larger supercharger unit takes more effort to spin up to speed. The standard 6-rib belt drives on a stock M156 engine and on the Stage 1 and Stage 2 superchargers are simply not up to the task of spinning the 3.0 supercharger unit up for high power levels. With our included 8-rib conversion, the entire belt drive is upgraded to switch to an 8-rib belt which offers a substantial increase in belt gripping surface.



Heat Management Included

The Stage 3 Supercharger System features a liquid-to-air intercooler core rated to 1000hp, a Johnson CM30 30 liter per min intercooler water pump, Cross flow heat exchanger, and an intercooler water recovery tank. For those looking for more cooling, we offer our trunk ice tank (not included) which substantially increases liquid volume and allows for icing of the intercooler system when drag racing

Heat Exchanger


Power Chart

Tune Included

Every supercharger comes with a tune. Our calibration team prepares a tune for your vehicle and all the mods that your build is running. You can receive your tune in person, at an Authorized Dealer, by mail, or remotely using the Cypher Handheld Programmer (Not included). For more information check out our How to Tune Page.



Improved Fueling

While the Stage 1 and Stage 2 systems make power levels that are within the capability of the factory fuel injectors, Stage 3 goes well beyond those limits. This is why we include a set of matched and custom spec 650cc injectors along with the 8an billet fuel rail setup that is included with all of our supercharger systems.

Fueling Rails



Key Features:

  • 3.0L Twin-Screw Compressor Module (Why Twin-Screw)?
  • 1000hp Liquid to Air Intercooler Core
  • High Flow Cast Aluminum T6 Hardened Lower Manifold
  • High Flow Cast Aluminum T6 Hardened Throttle Body Inlet Y
  • 45mm Boost Bypass Assembly
  • 8-Rib Direct Drive Belt System
  • SFI Approved Light Weight 8-Rib Crank Damper
  • Crank Pin Drill Tool
  • Billet Aluminum Direct Drive Cradle System
  • Hard Anodized Billet Aluminum Serpentine Idlers
  • Johnson CM30 30 Liter/Min Intercooler Water Pump
  • Intercooler Water Recovery Tank
  • Cross Flow Heat Exchanger
  • High Flow Fuel Rail System
  • High Capacity Fuel Injectors
  • Molded Silicone Couplers
  • Power-Steering Reservoir Relocation Assembly
  • Smaller Diameter Supercharger Pulley
  • Weistec Engineering Stage 3 Supercharger System ECU Reflash

* Allow 5-6 weeks for orders to be shipped. Supercharger systems are made to order.

Note: This item is considered special order. (See Terms and Conditions)