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Using Dual/Twin Fuel Pumps for Capacity or Redundancy
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The EFI Tuners Guide Chapter 5A -The EFI Fuel System: Overview

An overview of the EFI Fuel System and it’s major components, discussing fuel tanks and cells, fuel pumps, filters, regulators, etc. A high level of how to design a complete fuel system for a vehicle with Electronic Fuel Injection/EFI.

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James 'Doc' McEntire's Drag Week Champion 1967 Camaro running MS3Pro - Burnout time!
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The EFI Tuners Guide Chapter 1 – Why should you convert to Electronic Fuel Injection?

Updated September 2022 by Jerry Hoffmann Chapter 1 – Why should you convert to Electronic Fuel Injection? “EFI is more user-friendly than carburetion and will help the more novice tuners. They can perfect the combo on the dyno, then the EFI will self-correct for atmospheric conditions. After a short learning curve, EFI actually levels the…

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Converting the pattern on a 7X GM trigger wheel to its composite log.
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Using the Tooth Logger and Composite Logger

The tooth logger and composite logger TunerStudio’s tooth logger and composite logger are powerful tools for troubleshooting problems with the MegaSquirt’s RPM input. These are both under the Diagnostic and High Speed Loggers menu. The tooth log records the time between individual pulses from the crankshaft position sensor. The composite log works similarly to a…

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DIYBOB

Do It Yourself Break Out Board The DIYBOB breakout boards from DIYAutoTune.com that allows you to easily build professional looking adapter harnesses to connect the engine management of your choice to a wide variety of cars.  The DIYBOB includes an OEM style connector, circuit board, and an anodized aluminum case to finish it with a…

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MegaSquirt EFI Dyno Tuning Help

A proper tune, on a proper dyno, can make a world of difference…. We’re all about you learning to tune your car yourself, and for fuel tuning that’s usually very attainable with a good wideband a fair amount of time.  However for the DIYer, ignition tuning is usually either guesswork, or blind trust in a…

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How to MegaSquirt Your V6 Powered Ford Probe GT or Mazda MX-6/MX-3

Using the stock distributor, wasted spark, or coil on plug Looking for the easiest way to do this? We now have a MSPNP option, currently available for 1993-1995 models. This ECU comes fully assembled and ready to plug into the stock wiring. See this link for how to install a MSPNP in these cars. To…

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EFI Tuner Guide Chapter 5B Featured Image - EFI Fuel Tanks and EFI Fuel Pumps
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The EFI Tuners Guide Chapter 5B -The EFI Fuel System: Fuel Tanks and Pumps

Understanding EFI Fuel Systems and Fuel Pump needs for your project. How to convert your carb’d fuel tank over for use with Electronic Fuel Injection on a Carb-To-EFI project, and what to consider when upping the power output of your factory EFI engine.

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EFI Tuners Guide - Laptop Tuning 1967 Camaro Drag Car with MS3Pro using USB-2920 USB to RS232 Adapter 1
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The EFI Tuners Guide – Learn How EFI works!

A practical guide on how to understand and tune your engine/car with Electronic Fuel Injection and Ignition with an aftermarket Standalone Engine Management System  Updated September 2022 by Jerry Hoffmann Our EFI Tuners Guide is aimed first and foremost to the DIY EFI installer, configurer, and tuner, this guide will help you understand WHY you…

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Carb to EFI: Other ignition control alternatives

Objective of this Article In Part 2 of this article, we covered how to take control over the ignition on our 1977 Chevy Nova. We opted to get a HEI distributor out of a van in the local junkyard. This is a pretty straightforward option if you’ve got a Chevy V8. But what if you…

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Application Docs

How to jumper and configure your DIYPNP to get your car fired up on the first try This list of Application Documentation articles covers how to install and configure your DIYPNP MegaSquirt engine management system.   DIYPNP Documentation for 1987-1992 BMW 325 DIYPNP Documentation for 1988 – 1991 Chevy TBI V8 DIYPNP Documentation for 1988…

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