
Demon Carburetion Mighty Demon Carburetors MAD-850-AN
Are you running an over-the-top street/strip engine combo with a high compression ratio, big cam profiles, large cylinder heads, etc.? If so, then you need a radical street/strip carb to match. Demon Carburetion’s Mighty Demon carburetors are a step up from the Speed Demons. They feature billet base plates and metering blocks, concentric venturis, replaceable air bleeds, mechanical secondaries, and fuel bowls with sight plugs. They’re designed for engines with camshaft profiles up to 260 degrees at .050 in., large cylinder heads, large intake manifolds, and higher compression. For race engines and high-output street engines, the Mighty Demons deliver the best performance value for the dollar!
For the most hardcore racing engines and high-performance street machines, the Demon Carburetor 850 delivers the massive airflow and pinpoint fuel control needed to achieve maximum power. This premier carburetor is engineered specifically for optimizing the performance of supercharged, turbocharged, and nitric oxide-injected engines.
In this guide, we’ll dive into the features, benefits, and ideal applications of the Demon Carburetor 850. We’ll also provide helpful tips for selecting the right variant and properly installing and tuning this ultimate performance carburetor on your vehicle. Let’s get started unleashing extreme power!
Overview of the Demon Carburetor 850
Demon carburetors are synonymous with leading innovation and huge performance gains. The Demon 850 represents the pinnacle, providing:
- 850 CFM airflow capacity for the most power hungry engines
- Precision fuel metering for optimized combustion
- Comprehensive adjustability to customize performance
- Robust construction to withstand intense use
The 850 allows you to realize the full potential of high-output racing engines and street machines.
Key Features and Benefits
Massive Airflow
With a staggering 850 CFM rating, the Demon 850 can feed engines up to 1,000 horsepower without restriction. This extreme flow prevents power loss.
Tunable Metering
Adjustable air bleeds, interchangeable jets, and tunable metering blocks allow spot-on fuel calibration for your engine’s needs.
Lightweight Aluminum Construction
The housing is CNC-machined from durable, lightweight aluminum for fast throttle response and resilience under high RPMs.
Quick-Change Components
Interchangeable jets, air bleeds, and emulsion plates enable easy tuning adjustments trackside.
Clear Sight Glasses
Handy sight glasses allow quick visual monitoring of fuel levels during operation.
Ideal Applications
Nitrous-Injected Racing Engines
The 850 delivers the huge airflow needed for optimal nitrous oxide combustion in drag cars reaching over 3,000 horsepower.
Blown Alcohol Dragsters
It provides consistent vaporization of methanol at incredible flow rates in alcohol funny cars and dragsters.
Turbocharged Street Machines
The Demon 850 saturates turbocharged engines with enough fuel for enormous horsepower without going lean.
Marine Performance
It allows offshore racing boats and performance watercraft to reach tremendous speeds.
Popular Demon 850 Models
Speed Demon 850
Great for street/strip use. Features mechanical secondaries and adjustable air bleeds.
Mighty Demon 850
Maximized for racing. Has annular boosters and billet metering blocks.
Race Demon 850
Specifically for competitive racing. Adds tunable high-speed air bleeds.
Installation Tips
- Carefully follow the manufacturer’s installation instructions.
- Ensure the engine is cold before starting installation.
- Use a proper high-performance gasket to avoid vacuum leaks.
- Securely connect fuel lines and check for leaks before starting.
Tuning Suggestions
- Begin with the recommended factory tune as a baseline.
- Monitor air/fuel ratios; adjust jets and air bleeds to optimize.
- Adjust the secondary linkage for crisp acceleration transition.
- Road test under race conditions and fine-tune as needed.
Achieve Maximum Power
The Demon Carburetor 850 provides the massive airflow and precise fuel control needed to unlock the extreme performance potential of high-output, forced-induction engines. Its 850 CFM rating and comprehensive adjustability make it the ultimate carb for optimizing horsepower and acceleration. Follow this guide to help your race car or street machine achieve its maximum power!