Air Density Online

Main News

Follow Us On Facebook

By Jennifer on July 16th, 2018 in Main News, Site News

Did you know we're on Facebook? Give us a follow so you can be updated on what's new with us.

AirDensityOnline on Facebook

Have you visited our partner site?

By Jennifer on July 9th, 2018 in Main News was started several years ago in partnership with This site has many books and other resources for racers.

If you've seen our articles page and want more, check out the free articles available on They just might help you smooth out your setup.

What’s new from June

By Jennifer on July 2nd, 2018 in Main News, Site News

It's getting hot out there! Last month was a busy one for us and it looks like next month will be just as crazy. We did a major site overhaul including some layout issues that should now be fixed. In addition, we did some under-the-hood work on the site to improve the user experience.

As usual, we also added several tracks to the track weather page. Check them out:

If you don't see your track in the list, let us know and we'll add it. We can now add tracks worldwide!

If you've been giving some thought to our online jetting calculator, you can try it out for free to see if it works for you. Just sign up here: Try ProCalc for Free!.

If you need some assitance with a new setup or a nagging problem with your fuel system, we can help! Check out our ProTune and ProTune:Advanced packages.

Setting up a new fuel injection system

By Jennifer on June 25th, 2018 in Info and Education, Main News

If you're thinking of buying a new fuel injection system there are a few things to note when getting it calibrated with your existing setup.

Most fuel injection systems are shipped with a small main bypass which makes the engine run rich. While some systems run richer than others out of the box, they all come precalibrated with their own jetting. In addition, most new systems will run at the higher rpm's with a fuel pressure between 50-150psi. That means that at lower rpm's, the fuel pressure can be so low that the engine runs sluggish.

Read the rest of this article »

Check out our other resources

By Jennifer on June 11th, 2018 in Main News, Site News

Did you know that we've written several articles to help get a grip on what all this weather data means for engine tuning? You can them listed here: articles.

Did you also know we have a couple of free calculators you can use to get weather data? Once calculator enables you to enter the temperature, humidity, and barometer so you can get air density and density altitude. The other one provides the latitude, longitude, and elevation of a location you provide. Check it out here: free calcs.

If all this isn't enough for you, we also have a free trial of our online jetting calculator so you can see if it will work for you. Get your free trial here: Try ProCalc for Free!.

New tracks added last month

By Jennifer on June 4th, 2018 in Main News, Site News

We are roaring into racing season! Several more tracks were to our list of tracks. We are expanding to other countries and this month we added some tracks in South Africa. Late last year we added the option to view weather in either imperial or metric units. Now all tracks are available with both. Check out the tracks added in May:

As always, if don't see your track listed, let us know and we'll add it. Currently we have tracks in the US, Canada, Australia, New Zealand, and South Africa.

Some kind words

By Jennifer on May 28th, 2018 in Features, Main News

We try to be helpful for our users. Recently we got some nice feedback from one of them:

Thanks for taking time to talk with me on the phone and the assurance and guidance in the set up of my blown alcohol engine. It is one thing to call up a distributor of the equipment and they set it up with an initial which is fine. But, your books and web based calculator really help give you the understanding of what is going on and how to nail the tune up for a consistent and reliable engine. Then the occasional phone support is also awesome. Keep up the great work.

Thanks to Deon Daughtry for the kind words!

Reviewing for Racing Season: Methanol vs Nitro

By Jennifer on May 21st, 2018 in Info and Education, Main News

Do you race with methanol? Do you add nitro at all? Check out our recent blog post about the differences in tuning with each fuel:

Tuning with methanol vs nitro
« Newer PostsOlder Posts »


© 2019