Description

Achieve precision fuel metering and optimize your Holley carburetor’s performance at mid to high RPMs with the Holley Standard Main Jet – .112 Size (Part# 122-93). This critical tuning component, featuring a common 1/4-32 thread, directly controls the amount of fuel delivered through the main metering system, influencing your engine’s power output and efficiency. The “.112” designation refers to the precise diameter of the jet’s orifice, dictating the fuel flow. (Note: Jet sizes are standard measurements used globally in the carburetor industry, typically in thousands of an inch.) Selecting the correct main jet size is crucial for ensuring your engine runs optimally – avoiding lean conditions that can cause damage, or rich conditions that waste fuel and reduce power. This genuine Holley main jet is manufactured to exacting standards for consistent flow and reliable performance, essential for fine-tuning your carbureted setup in South Africa.

Key Features:

• Genuine Holley Part: Ensures precise fitment, consistent flow, and reliable operation.
• Standard Main Jet: A foundational component for tuning Holley carburetors.
• .112 Jet Size: Provides a specific fuel flow rate for fine-tuning fuel mixture.
• 1/4-32 Thread: Common thread size for wide compatibility with many Holley carburetor models.
• Optimizes Fuel Mixture: Allows for precise adjustment of the fuel-air ratio at cruise and wide-open throttle.
• Enhances Performance & Economy: Correct jetting improves horsepower, torque, and fuel efficiency.
• Prevents Engine Damage: Crucial for avoiding lean conditions under load.
• Durable Construction: Made from high-quality brass for longevity and consistent performance.
• Nationwide Delivery Across South Africa: We ship carburetor parts nationwide from Alberton, Gauteng.
• Expert Support Available: Our team can assist with general jetting advice and compatibility.

Why Choose the Holley Standard Main Jet – .112 Size (122-93) in South Africa?

For enthusiasts and tuners in South Africa, the Holley Standard Main Jet – .112 Size (122-93) is an indispensable component for fine-tuning Holley carburetors. It allows for precise control over your engine’s fuel mixture, ensuring peak performance, optimal efficiency, and protection against detrimental lean conditions.

Specifications:

• Type: Standard Main Jet
• Jet Size: .112 (Orifice Diameter)
• Thread Size: 1/4-32
• Application: Holley Carburetors (compatible with 1/4-32 threaded main jets)
• Part Number: 122-93
• Brand: Holley

Frequently Asked Questions:

1. What is the purpose of a main jet in a carburetor? The main jet controls the amount of fuel that flows into the engine’s main metering system, primarily affecting the fuel-air mixture at mid to high RPMs (above idle and off-idle circuits).
2. How do I know if I need to change my main jets? Signs of incorrect jetting include: a lean condition (engine sputtering, backfiring, overheating, lack of power at higher RPMs) suggesting you need a larger jet; or a rich condition (black smoke from exhaust, fouled spark plugs, poor fuel economy, sluggish performance) suggesting you need a smaller jet.
3. How do I install a main jet? Main jets are typically located in the bottom of the fuel bowls or in the metering blocks of Holley carburetors. Installation usually involves removing the fuel bowl, unscrewing the old jet, and screwing in the new one. Always use a proper jet wrench to avoid damage.
4. What does “.112” jet size refer to? The number .112 refers to the diameter of the main jet’s orifice in thousands of an inch. A higher number indicates a larger hole and thus more fuel flow.
5. Do you ship Holley carburetor parts throughout South Africa? Yes, we offer reliable nationwide delivery of performance fuel system components across South Africa from our location in Alberton, Gauteng.
6. Can changing main jets affect my fuel economy? Yes, absolutely. Properly jetted main jets ensure the engine receives the optimal fuel-air mixture, which directly impacts both power output and fuel efficiency during cruise and wide-open throttle operation.