How to Get Blower Surge

Blower surge is a phenomenon that can occur in certain types of forced induction systems, such as superchargers. It is characterized by a pulsating or surging sound and can lead to performance issues and potential damage to the supercharger or engine components. Blower surge is often caused by disruptions in the airflow through the supercharger.

Here are some common causes and ways to address blower surge:

  1. Bypass Valve Adjustment:
    • Some supercharger systems are equipped with bypass valves or blow-off valves. These valves help regulate airflow and prevent surge. Check if your system has a bypass valve, and if it does, ensure that it is properly adjusted.
  2. Check for Boost Leaks:
    • Boost leaks can disrupt the airflow and contribute to surge. Inspect all connections, hoses, and fittings for any signs of leaks. Use a boost leak tester to pressurize the system and identify potential leaks.
  3. Throttle Body and Intake Restriction:
    • Ensure that the throttle body and intake system are not experiencing any restrictions. Clean or replace air filters, and inspect the intake system for any obstructions.
  4. Fuel System Issues:
    • Inadequate fuel delivery can also contribute to blower surge. Check the fuel system for proper operation, including fuel pressure, injectors, and the fuel pump.
  5. Tune and Calibration:
    • The engine control unit (ECU) calibration may need adjustment to ensure proper fuel and timing under various operating conditions. Consult with a professional tuner to optimize the tune for your specific setup.
  6. Check Belt Tension:
    • Ensure that the supercharger belt is properly tensioned. A loose or slipping belt can affect the performance of the supercharger and contribute to surge.
  7. Consult the Manufacturer or Tuner:
    • If you’re experiencing persistent blower surge issues, it’s a good idea to reach out to the manufacturer of your supercharger system or the tuner who calibrated your engine management system. They may have specific recommendations or updates to address the issue.
  8. Upgraded Bypass Valve:
    • In some cases, upgrading to a higher-performance bypass valve may help alleviate blower surge. Consult with experts in your specific supercharger system for recommendations.

Remember, addressing blower surge often requires a systematic approach, and it’s crucial to diagnose and fix the root cause rather than just masking the symptoms. If you’re not comfortable performing these checks and adjustments yourself, it’s advisable to seek the assistance of a professional mechanic or tuner with experience in forced induction systems.

How to Get Blower Surge


What Causes Blower to Surge?

A blower surge occurs when the air flow through a fan or blower is suddenly interrupted, resulting in an increase in pressure. This can be caused by several factors including clogged filters, dirty ductwork, an imbalanced system, and improper fan sizing for the application.

One of the most common causes of a blower surging is when there are blockages in the ducts that restrict airflow.

If these blockages aren’t cleared out on a regular basis it can lead to increased pressure inside your ducts and cause them to expand and contract with each cycle of operation leading to surges.

In addition, if filters are not changed regularly they will become clogged which will also reduce air flow causing surges as well as inefficient operation of your system.

Imbalances within your HVAC system such as incorrect return-air ventilation can also create unbalanced pressures leading to surges while operating at higher speeds.

Lastly improper fan sizing can result in inadequate airflow causing increased pressures throughout the system resulting in blower surges as well.

Is Blower Surge Bad for an Engine?

Blower surge is a phenomenon that can occur in an internal combustion engine, and it isn’t something most people would want to experience. This surge occurs when the air pressure within the engine’s intake manifold suddenly increases and causes an unwanted acceleration of the engine’s RPMs.

While this type of event is often harmless and may only last a few seconds, it can be damaging if it happens too frequently or for prolonged periods of time.

Blower surge is typically caused by either airflow restrictions due to inefficient induction components such as filters or exhaust systems, or improper carburetor tuning. If left unchecked, blower surge can cause excessive wear on critical parts like pistons, rings, valves and bearings due to increased stress from higher than normal RPMs.

Over time this could lead to reduced performance as well as costly repairs down the road if not addressed quickly enough.

As such, any signs of blower surging should be checked out by a qualified mechanic right away in order to prevent further damage from occurring!

What is Surging in Air Blower?

A surging air blower is a type of compressor that works by using an impeller to increase the pressure and flow of air or other gases. The impeller is typically made up of multiple blades, which are curved in such a way as to create pockets of low pressure when the impeller rotates.

As these pockets move through the system, they suck in outside air from one side, compress it within the impeller cavity before passing it out at a higher pressure on the other side.

This process helps to increase both volume and velocity so that more airflow can be achieved with less energy being used. Surging air blowers offer numerous benefits over traditional compressors due to their ability to provide greater efficiency while operating under lower power requirements.

Additionally, they require less maintenance than conventional compressors since there are no valves or seals required for operation.

This makes them ideal for applications where extended use is required without requiring frequent servicing or downtime.

What is a Blower on a Muscle Car?

A blower on a muscle car is a type of forced induction system designed to boost the power output of an engine. It works by forcing more air into the cylinders, which increases combustion and horsepower. The most common type of blowers used on muscle cars are superchargers or turbochargers.

Superchargers are belt-driven compressors that force air into the engine’s intake manifold at a higher pressure than normal atmospheric pressure, while turbochargers use exhaust gases to spin a turbine wheel in order to pressurize incoming air into the intake manifold. Both types can be found as OEM components or aftermarket products specifically designed for performance applications.

Blower kits often include other enhancements such as high-flow fuel injectors and larger throttle bodies to increase airflow even further, enabling your vehicle to produce significantly more power than it would otherwise be capable of without them.

Installing one can also provide better throttle response and improved drivability from low rpm ranges up through redline levels depending on the setup you choose for your specific application needs.

What Causes Blower Surge? (The Answer With Visual Explanation) – Blown Alcohol 454 Big Block Chevy

Blower Surge Good Or Bad

Blower surge is a phenomenon that occurs when the airflow through an HVAC system exceeds its capacity. It can be caused by a number of things, including improper blower sizing, clogged air filters and faulty ductwork. In some cases, it can lead to decreased efficiency of your system and higher energy costs.

However, if managed properly it can also provide improved air circulation and better indoor air quality for your home or business.

How to Fix Blower Surge

If your blower is surging, then the first thing to do is check the air filter. A clogged air filter restricts airflow and can cause surges in a blower motor. Change or clean your air filter regularly, as recommended by your manufacturer’s guidelines, for optimal performance of your blower system.

If this does not resolve the issue, you may need to adjust the belt tension on your blower motor; consult an HVAC technician if you are unsure how to do this safely.

Additionally, regular maintenance such as lubrication of fan bearings and checking electrical connections can help reduce surge problems with a blower system over time.

Centrifugal Blower Surge

Centrifugal blower surge is an airflow phenomenon that occurs when a centrifugal blower, such as a fan or compressor, suddenly experiences increased pressure. This sudden increase in pressure can cause the air to move much faster than normal and create an audible “surge” sound from the machine.

It is important for users of these machines to know how to identify and prevent this phenomenon in order to keep their equipment running smoothly and efficiently.

871 Blower Surge

The 871 Blower Surge is a type of blower used for air intake applications in engines that require high-volume, low-pressure airflow. It utilizes centrifugal force to create an efficient and powerful performance with minimal noise. This makes it ideal for use in applications such as automotive vehicles and industrial machinery where higher torque and output are needed without the accompanying loudness.

Additionally, the 871 Blower Surge features balanced impeller design which ensures smooth operation while maintaining maximum efficiency.


Getting blower surge is an important part of maintaining a healthy and efficient HVAC system. It can be done in several different ways depending on your budget, preferences, and the type of equipment you have. By following the steps outlined in this blog post, you can easily get blower surge for your HVAC system to ensure that it runs smoothly and efficiently for years to come.

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