Bosch 52 lb/hr High Impedance Injector

SKU: INJ_Bosch52

Modified Bosch/Ford injectors. These have a 60 mm length and 14 mm O-rings for fitting most American V8s, as well as many other German and domestic applications. These injectors are enough to feed 80 hp per injector, naturally aspirated. They use EV6 connectors, so 5.0 Mustangs, Chevy TPI motors, and some others will need adapters…

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Y Vacuum Fitting

SKU: 5231A

1/8″ vacuum Y-fitting, as included in the MSPNP and Mustang plug and play packages. This is made of clear polycarbonate. Maximum pressure 125 psi. This plastic is tough enough to take 275 degree F engine temps, and won’t crack even if exposed to Siberian cold.

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Jay Brown’s 1969 Mustang “Shelby Clone”

Congrats to DIYAutotune.com customer Jay Brown from Minneapolis, MN for making the cover of Mustang Monthly magazine!   MS3X handles the electronics chores in this 8 second, All-Motor-Monster. 3 time Drag Week class champion and nothing more needs to be said about the uniqueness of his builds. 585cid SOHC Ford 992hp Running MS3X 2015 Drag…

Available Models

UPDATE: The DIYPNP prouct line has reached the END OF LIFE.  DIYAutoTune will continue production on the N76 ONLY, however, this page will remain for archive purposes. Click the DIYPNP Model Number below for the application list: B55   D56   F60  J64  J88  J93  N42   N52  N76  N122 DIYPNP B55  (Bosch Motronic Style 55 pin) Part# DIYPNPB55-K (DISCONTINUED) (Note:…

How to use an EEC-IV Adapter Board to MegaSquirt your Ford

If you haven’t already, please read the ‘disclaimer’ at the top of the parent page here. Note – this adapter has been discontinued. This article is for legacy support. What does this board do? The EEC-IV adapter board kit allows you to install MegaSquirt into virtually any Ford vehicle that uses an EEC-IV computer, without…

MegaSquirt Your 5.0 Mustang!

Assembling the EEC-IV Adapter Board

If you haven’t already, please read the ‘disclaimer’ at the top of the parent page here. EEC-IV Adapter Board Assembly Scott Hall’s EEC-IV adapter board kit allows you to install MegaSquirt into virtually any Ford vehicle that uses an EEC-IV computer, without cutting a single wire.  To get started, you’ll need both the kit and a…

Using MSTweak to tune your MegaSquirt

(Regardless of the firmware you are using) Last Updated 3-21-2006 by Jerry Hoffmann, www.DIYAutoTune.com NOTE– this article is extremely dated now and kept here solely for archive purposes.  We don’t recommend MSTweak at this point in time.  We recommend instead using TunerStudio’s VE Analyzer Live feature!     Many of these principals are applicable for…

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.

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.