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Using DIYAutoTune.com’s Revised Pattern Nissan Optical Trigger Discs
Converting your Nissan distributor to a more MegaSquirt friendly design Many Nissans used a distributor or CAS with a set of four or six inner slits and 360 outer slits. Current MS3 firmware supports the SR20DET, RB series, and VG30DE/DETT trigger wheels, but MS1 and MS2 are only able to use this type of trigger…
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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.
Read MoreMS3Pro & MS2 MegaSquirt Output Test Modes
The MegaSquirt Output Test Mode is a robust tool for troubleshooting your EFI installation. This feature enables you to manually toggle inputs and outputs to test components such as coils and injectors. Multiple test modes are available and can be selected from the CAN-Bus / Testmodes menu. The specific modes accessible will vary depending on…
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Fuel pressure failsafes
With the fuel pressure failsafe feature in the MS3X and MS3Pro, losing your fuel pressure doesn’t have to mean losing your engine. Instead, the MS3 can detect if you’ve lost fuel pressure, and trigger an automatic limp home failsafe. The MS3 will first activate a spark cut, while still running fuel to cool the engine.…
Read MoreTwin Turbocharging our Nova: One Step at a Time Part1: Main Turbo Conversion
Way too much turbo, way too little motor. Should be fun. Oil System Parts List To order the parts needed for the oil system, I just started at the oil source, which is the oil pressure port on the block near the rear of the drivers side head, and envisioned each connection to the turbos…
Read MoreConfiguring Megasquirt for a DIYAutoTune.com Crank Trigger
This article covers how to configure Megasquirt for our line of 36-1 trigger wheels. See the main Megasquirt trigger wheel page for more details on the trigger wheels, including how to install them on your car. In this article, we will use the standard orientation described in the installation guide. Here’s how many teeth the…
Read MoreTwin Turbocharging Our Nova: One Step at a Time Part1: Main Turbo Conversion
Way too much turbo, way too little motor. Should be fun. Oil System Parts List To order the parts needed for the oil system, I just started at the oil source, which is the oil pressure port on the block near the rear of the drivers side head, and envisioned each connection to the turbos…
Read MoreHow to MegaSquirt Your TPI or TBI Chevy Small-Block V8 or V6
Engines covered: Pre-Optispark small block Chevy V8s with TPI or TBI injection and HEI ignition with electronic spark timing (seven or eight pin HEI module) Much of this article will apply to other 1980s era GM cars including injected big blocks and even fire V6s. TPI and TBI The Tuned Port Injection and Throttle Body…
Read MoreThings you shouldn’t power from the fuel pump relay
The fuel pump relay (or a second relay wired in parallel if you are worried about too much current) can be a handy source of power for other devices. The fuel pump relay can help isolate noise from coils and injectors from the main ECU power. And powering a wideband O2 sensor controller from the…
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Project Pareto: How Ignition Timing is The Most Effective Change
This week returning guest blogger Greg Banish of Calibrated Success joins us to discuss ignition timing. Learn about how ignition timing is THE most important factor in engine performance.
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