The monster 565 series of regulators have been around for some time, but they never really had a place. Fuelab didnt have a pump that required its massive flow capabilities, but they do now! The...

Fuelab sharpened their pencils when it came to machining and managed to squeeze roughly 30% of the weight out of their popular 515 series regulator, while also increasing the flow and giving the...

Example of close regulator placement to fuel destination.  Location, location, location! It’s not only the number one rule in real estate, it’s also a contested point when...

Most Adjustable Fuel Pressure Regulators leak small amounts of air. Many people don’t realize this. Though this leak is not significant, and ultimately is accounted for when the...

Accurate and consistent fuel pressure is critical for maximum and consistent high performance. Therefore accurate adjustment of fuel pressure is critical. This can prove to be a challenge...

This article is a continuation of the FUELAB article,  How to Perform System Diagnostics with a FUELAB 529xx Series Regulator , that discussed how to perform diagnostics on the...

This article is a continuation of the FUELAB article, How FUELAB's Electronic Regulators Work , which describes the function of the FUELAB 529xx Series Electronic Fuel Pressure...

This article will describe how FUELAB’s 529xx Series Electronic Fuel Pressure Regulators work, and the functionality that they provide. 529xx Series regulators can be categorized as a...

This article expands on the earlier articles with focus on “Boost Reference”. Let’s start by identifying the Pressure Reference Port of a fuel pressure regulator. This is the...

Introduction Low pressure automotive fuel delivery systems were the norm decades ago, with fuel being fed to a carburetor by a low pressure fuel pump (1-3 psi). These lower pressure carbureted...

Roughly 95% of the fuel pressure regulators we sell are for a return style fuel system, so that’s what I’m going to focus on for this tech article. This is a tech call that I field...