Air Density Online

Info and Education

Why Air Density Is Important In Engine Tuning

By Jennifer on October 23rd, 2016 in Info and Education, Main News

This article highlights some of the basics about why air density is important in engine tuning. You can watch some helpful videos with more detail about this subject on our YouTube channel.

Some engine basics

The basic premise behind a vast majority of racing engines as well as cars on the road:

Take a fuel like gasoline (that produces a lot of energy) and put it in a controlled space such as a cylinder. When it is ignited, it creates a controlled explosion. This is the basis for an internal combustion engine. One of the goals of racing is to tweak the engine setup to make your engine the most efficient, reliable and powerful so you can go faster down the track. This is done by controlling how much oxygen and how much fuel are present in the cylinder to get the most power out of that controlled explosion.

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Historical Weather Data

By Jennifer on September 20th, 2016 in Info and Education, Main News

We've gotten a few questions recently asking about weather data from a past date. We do not store historical data on our site. But all hope is not lost! There is still a way to get air density or adjusted altitude from a previous date.

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Measuring the Atmosphere Around a Track

By Jennifer on August 22nd, 2016 in Info and Education, Main News

Imagine a cubic foot of air near the ground level at the race track. It may seem empty but there are molecules moving around within that area. Depending on various environmental factors, that cubic foot of air can contain oxygen, other elements such as nitrogen and carbon dioxide, moisture, and particles of pollution. Each of these vary depending on the location, elevation, and current weather environment.

We need oxygen for combustion in our engines. However, as we can see, the amount of oxygen in the atmosphere fluctuates. This is why, for instance, you might notice a great engine performance at certain times of day and bad performance at others. Tracking the weather can help us determine jetting changes in order to compensate for the changing atmosphere. Using the information we provide on the tracks pages of this site can help you do that.

This article will explain those variables. Hopefully it will help you to better understand the atmosphere and better tune your engine for optimum performance.

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