Air Density Online

Main News

Check out our latest article for EngineLabs

By Jennifer on June 25th, 2019 in Info and Education, Main News

Do you have problems with detonation in your engine? Check out our latest article for

Misunderstood Causes of Denotation in High Performance Applications

Using this site – the future and the past

By Jennifer on June 20th, 2019 in Main News

If you're a little unsure about how best to utilize the weather data provided on this site, you might get a lot out of a recent article we wrote for Air Density Tuning at MLRA Lucas Oil Speedway Oval Track, April 12-13, 2019 presented by This article highlights how to use parts of this site to prepare for a racing outing.

From there, you can get historical weather data and a 36 hour forecast of air density and density altitude on our site. Check out the US track weather and the International track weather to get more weather data.

Did you know about our help videos

By Jennifer on June 10th, 2019 in Main News

We've produced a few videos to help ProCalc users get familiar with the site. If you're interested in trying ProCalc but unsure how it works, these videos provide a good demonstration.

Using Air Density Online

Using Air Density Online - Advanced

If you'd like to give ProCalc a try, we offer a free trial.

Summer is coming!

By Jennifer on June 1st, 2019 in Main News

We hope you had a great Memorial Day weekend and are getting ready for some summer racing! As always, we are tweaking and improving the site behind the scenes. Here are a few of the tracks we added last month.

We are in the process of cleaning out and updating our list of tracks. If there are any inaccuracies listed for your track, let us know. As always, if there is a track we don't have listed, send it over and we'll add it.

Nascar weather

By Jennifer on May 20th, 2019 in Main News

Nascar tracks have been added to the list of track weather pages. Racers and racing fans alike can follow the weather on race day. Here are a few:

See the full list of Nascar weather pages.

Follow us on Facebook

By Jennifer on May 10th, 2019 in Main News, Site News

Check us out on Facebook. Stay up-to-date on our latest articles and site additions. We appreciate your follow!

Air Density Online on Facebook

What’s new – May 2019

By Jennifer on May 1st, 2019 in Main News, Site News

Lots more tracks have been added and more are getting added all the time. We are working on more developments with our track list. We can add your track if you don't see it.

Have you visited our partner site, We sell books related to engine tuning and reading the weather. We also have a twice-a-year newsletter on that site that features tips and tricks. Read our recent newsletters and sign up.


By Jennifer on April 23rd, 2019 in Main News, Site News

Have you heard about our mechanical fuel injection jetting calculator? We developed it to be a quick, easy alternative to traditional jetting software and usable on any smartphone. If you've been thinking about giving it a try, sign up for our free trial:

ProCalc free trial

With our ProTune package we can set up your system for you. You will get one on one assistance tailored to your setup. As always, if you have any questions or comments, send them over.

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