Air Jet DGV, DFV, ICT, EPC 200

Product Overview

Precision tuning is the secret sauce that separates a mediocre air-cooled engine from a high-performance machine that screams down the blacktop. This EMPI Air Jet, specifically sized at .200, is an essential component for anyone looking to dial in their Holley-Weber style carburetors, including the legendary DGV, DFV, ICT, and EPC series. Whether you are running a single 34 ICT setup on a mild street cruiser or a progressive 32/36 DGV on a spirited weekend warrior, the air jet plays a critical role in the high-speed circuit. It works in conjunction with the emulsion tube to bleed air into the fuel flow, effectively leaning out the mixture as RPMs rise. Without the correct air jet sizing, your engine might suffer from a "rich-stumble" at high speeds or, even worse, a lean condition that could lead to catastrophic cylinder head temperatures. By choosing this genuine EMPI component, you are ensuring that your fuel delivery system is calibrated with the exactitude required for the demanding environment of a Volkswagen flat-four engine.

Crafted from high-quality brass to resist corrosion and maintain tight tolerances over years of heat cycles, this .200 air jet is built for the enthusiast who refuses to settle for "close enough." In the world of air-cooled VWs, elevation changes, humidity, and engine displacements all dictate a unique jetting profile. This jet allows you to fine-tune the "tip-in" point where the main circuit takes over, providing a seamless transition from the idle circuit to wide-open throttle. If you have noticed your spark plugs coming out a bit too dark after a high-speed run, or if your engine feels like it is "choking" out at the top of the gear, stepping up to a .200 air jet might be the precise adjustment needed to optimize your air-fuel ratio. Don''t let a simple tuning oversight hold back your horsepower; invest in the small parts that make a massive difference in throttle response and overall engine longevity.

Vehicle and Carburetor Fitment

• Volkswagen Type 1: Beetle, Bug, and Karmann Ghia (All years equipped with DGV, ICT, or EPC conversions).
• Volkswagen Type 2: Bus, Transporter, and Kombi (Equipped with Weber ICT or DGV progressive kits).
• Volkswagen Type 3: Fastback, Squareback, and Notchback (Commonly used with dual ICT setups).
• Volkswagen Type 181: The Thing (Off-road applications using EPC or DGV carburetors).
• Weber Carburetor Models: 32/36 DGV, 32/36 DGAV, 32/36 DGEV, 38 DGAS, 34 ICT, and 32/36 DFV.
• EMPI Carburetor Models: EPC 34, EPC 32/36 Progressive series.
• Holley Models: 5200 Series (Weber licensed designs).

Technical Specifications

• Part Number: 77201.200
• Jet Size: .200 (2.00mm)
• Material: Precision-Machined Solid Brass
• Jet Type: Air Correction Jet
• Application: High-Speed Fuel Circuit Calibration
• Compatibility: Weber DGV, DFV, ICT, and EMPI EPC Series
• Quantity: Sold Individually (1 piece)
• Thread Pitch: Standard Weber/EMPI Air Jet Threading

Pro Tips from the Master Tech

Pro Tip 1: Understanding the Inverse Relationship. It is vital to remember that air jets work inversely compared to main fuel jets. While a larger main jet richens the mixture, a larger air jet actually leans it out by introducing more air into the emulsion tube. If your engine is running too rich only at high RPMs, increasing your air jet size to this .200 option is often the correct fix rather than downsizing your main fuel jets, which could lean out your mid-range too much. Always tune the main jet for the mid-range and the air jet for the high-end transition.

Pro Tip 2: The Art of the Plug Read. To truly know if this .200 air jet is right for your setup, you must perform a high-speed "chop" test. Find a safe, open stretch of road, accelerate through third gear to near the top of the RPM range, and then simultaneously cut the ignition and push in the clutch. Pull your spark plugs right there on the side of the road. If the porcelain is a light "coffee with cream" color, your air jetting is spot on. If it is white or blistered, you are too lean and need a smaller air jet; if it is sooty and black, this .200 or larger is exactly what you need to clean up that top-end burn.

Pro Tip 3: Cleanliness and Soft Metals. These jets are made of brass, which is a soft metal chosen for its non-corrosive properties and machining accuracy. Never use a steel wire or a drill bit to clean a clogged jet, as you will permanently alter the orifice size and ruin your calibration. Use only aerosol carburetor cleaner and compressed air. Furthermore, when installing this jet into your DGV or ICT, do not over-tighten it. Snug it down firmly with a properly fitting flat-head screwdriver to ensure the slot doesn''t get "buggered" up, making future tuning adjustments a nightmare.