Idle Jet DGV, DFV, ICT, EPC 45

EMPI Idle Jet .45 for Weber DGV, DFV, ICT, and EPC Carburetors

Product Overview

Precision-engineered by EMPI, this .45 size idle jet is essential for fine-tuning the low-speed circuit of your Holley or Weber-style carburetors. Proper idle jetting is the foundation of a smooth-running engine, ensuring a crisp transition from the idle circuit to the main circuit without hesitation or stumbling. This jet is sold individually and is a direct replacement or tuning component for DGV, DFV, ICT, and EPC series carburetors.

VW Fitment & Compatibility

This idle jet is a staple for air-cooled Volkswagen enthusiasts running aftermarket carburetor setups. It is compatible with the following applications:

• Weber DGV / DFEV: Commonly found on "Progressive" carb kits for VW Beetles, Ghias, and Type 2 Buses.
• Weber ICT: Popular for dual-carburetor setups on 1600cc to 1776cc upright engines.
• EMPI EPC: The standard jetting choice for EMPI's line of EPC 34 and EPC 38 carburetors.
• Dune Buggies & Sand Rails: Ideal for off-road vehicles utilizing Weber-style induction for reliable low-end torque.

Pro Tech Tips for Tuning

Tip 1: Identify Lean Stumble. If your VW experiences a "pop" through the carburetor or a significant hesitation when you first step on the gas, your idle jet may be too small. A .45 jet is a standard starting point for 1600cc engines, but larger displacements or high-flow exhausts may require stepping up to a .50 or .55 to richen the mixture.

Tip 2: Never Use Wire to Clean. These jets are made of soft brass and are calibrated to precise tolerances. Never attempt to clean a clogged jet using a wire or a drill bit, as this will enlarge the orifice and ruin the calibration. Use only compressed air and specialized carburetor cleaning solvent to clear debris.

Tip 3: Check for Vacuum Leaks First. Before swapping jets to solve an idle issue, ensure your intake manifolds and carburetor base gaskets are sealed tight. A vacuum leak will mimic a lean idle condition, making the engine difficult to tune regardless of which jet size you install.