How To Articles and Write-Ups

LS Engine Compatability

LS Engine Beginings
The General Motors engine family commonly called the LS series debuted in the then-new1997 model year C5 Corvette as the all aluminum LS1 V8. General Motors called it the Gen III small-block V8 and a year later (the 1998 model year), the LS1 replaced the LT1 small-block in Camaros and Firebirds, which was followed by the iron-block version of the Gen III V8 appearing in the full size trucks and SUVs. The LS1 displaced 5.7 liters, similar to the previous-generation small-block, but the cubic-inch measurement differed slightly: 346 for the LS1 vs. the traditional 350 cubes.

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How To Re-Wire a fuel pump off a relay

Fuel Pump Re wiring Installing Relay Modification Performance GPH LPH

Installing a dedicated voltage supply line for your fuel pump

Written By: Enginebasics.com

When putting in an aftermarket fuel pump or looking to get more fuel out of your factory pump, one mod worth doing is re-wiring that fuel pump. The purpose of this is to make sure that the fuel pump is getting a good, clean voltage that won’t fluctuate or change based on other electrical conditions the car is going through. What I am saying is that we want to make sure that our fuel pump is receiving 14 volts when in use to be sure that our fuel pump is working as efficiently as possible.

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MAP Sensor Vs. MAF Sensor

Written By: enginebasics.com

Each EFI car today is equipped with either a MAF sensor ( mass air flow) or a MAP sensor ( mass air pressure). Some cars are even equipped with both a MAF and a MAP sensor…..example a Mitsubishi Evo X. So what do these sensors do and what is the difference?

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Tuning For E85

Steps to properly convert a car to ethanol

How To Tune E85 Ethanol Tuning Maps ECU Corn Gas Pump Alcohol Alternative FuelsHow To Tune E85 Ethanol Tuning Maps ECU Corn Gas Pump Alcohol Alternative Fuels

Written by: enginebasics.com

For an owner or tuner that has never tuned an E85 vehicle it can be a frustrating experience. First, if you don't know much about the background of E85, what it is, how much ethanol a fuel contains or any other basic facts, be sure to check out this article. If you are already familiar with the fuel then tuning a vehicle will be a cake walk.

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The Basics Of Air Fuel Ratio

What is lambda, and the difference between narrow band and wide band 02 sensors?

Written By: Enginebasics.com

Air Fuel Ratio Wideband Narrowband Gauge Sensor Bosch Tuning

One the most important aspects of the combustion motor is the air to fuel ratio in the cylinder. Like all things that explode, having the proper amount of combustible fuel to the amount of air to sustain the burn is important. Having lots of air but no fuel will cause the combustion to burn very rapidly and hot, while having lots of fuel, but no air will cause the mixture to burn very cool and slowly. Having an overly gross amount of either fuel or air will cause the combustion to not even occur at all.

 

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Open Loop Vs. Closed Loop

How to tune and set these parameters

Written By: Enginebasics.com

A term you are bound to run across when tuning an EFI fuel injection set-up, is the term “closed loop o2”. The purpose of this article is to explain how open and closed loop o2 works and how to tune and modify these tables.

 

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The Effects Of Air Intake Temps on EFI

How to tune for changes in AIT's

As Written By: Enginebasics.com

Tuning Air intake temp sensors have become vital to getting a good steady tune on modern EFI systems. The following is a article about how IAT’s (Intake Air Temps) effect how a motor runs.

First we need to understand the idea of Ambient. Ambient refers to the natural temperature of the air. For example of the air temperature that day is 80 degrees, and the AIT is reading 80 degree temperature air in the intake manifold then you would say that your IAT’s are ambient. In the same example if the IAT sensor was reading 90 degrees than you would say the intake air is 10 degrees over ambient.

 

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Tips For tuning Aftermarket EFI Systems

by: Benjamin Strader ©2004

1. Tuning EFI Systems on a Chassis Dyno

Sometimes when you are tuning an engine that is already in a vehicle on a chassis dyno, a lot of strange things can happen that you should be aware of.

First of all, it is important to keep a perspective on all the things that are happening. It can be very difficult to keep track of engine temperature, manifold pressure, air/fuel ratios, engine torque and horsepower readings all at the same time. It will take some practice to get comfortable with all of this while the wheels are spinning.

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