Dcoe Pump Jet 70

EMPI DCOE Pump Jet .70 Precision Tuning for Weber Carburetors

Product Overview

Optimize your engine's throttle response with the EMPI DCOE Pump Jet size .70 (Part #76801.07). Designed specifically for Weber DCOE carburetors, this precision-machined jet ensures your air-cooled VW engine receives the exact burst of fuel required during rapid acceleration. Whether you are tuning a high-performance Beetle, a rugged Dune Buggy, or a classic Karmann Ghia, selecting the correct pump jet size is critical for eliminating acceleration lag and achieving a smooth power band.

VW Fitment & Compatibility

This pump jet is a direct fit for all genuine Weber DCOE series carburetors and EMPI EPC equivalents. It is commonly utilized in performance VW engine builds, particularly dual-carburetor setups on 1914cc to 2332cc displacements where high fuel volume is necessary to prevent lean stumbles. These jets are sold individually, allowing for precise tuning of each carburetor throat.

Pro Tech Tips for DCOE Tuning

Eliminate Acceleration Hesitation: If your VW engine experiences a "flat spot" or stumble immediately after you depress the throttle, it often indicates a lean condition in the accelerator circuit. Stepping up to a .70 pump jet provides a larger volume of fuel to bridge the transition from the idle circuit to the main circuit, ensuring crisp, immediate response.

Inspect Sealing Surfaces: When replacing your pump jets, always inspect the small O-rings or sealing washers. Even a minor leak at the jet seat will bleed off hydraulic pressure, resulting in a weak "squirt" and inconsistent performance. Ensure the jet is seated firmly to maintain the integrity of the accelerator pump shot.

Synchronize Dual Carburetor Squirts: For engines running dual DCOEs, it is vital that both carburetors deliver fuel simultaneously. After installing your .70 jets, visually verify that the fuel spray begins at the exact moment the throttle linkage moves on both sides. Inconsistent timing between the left and right banks can lead to rough acceleration and engine vibration.