Air Density Online

weather calculations for racing engine tuning


Dec 14, 17 - New – Metric Units

Racing season is under way down under in Australia. Recently, we added the ability to view the weather using metric units just for them.

You can view the list of tracks with metric units here: Metric tracks list.


Dec 1, 17 - New for December

Happy Holidays from all of us at Air Density Online and RaceCarBook.com! We hope you had an excellent racing season and are ready to enjoy some time with your families. We are working on some new features to add to the site for the coming year. We've also added a few more tracks to the list:

As always, if you don't see your track listed, let us know and we'll add it to our site. We can add tracks in the US, Canada, and Australia.


Nov 21, 17 - Using Air/Fuel Ratio

On this site, we talk a lot about finding your ideal air/fuel ratio. It is the concept that our mechanical fuel injection jetting calculators are built on, and it is the concept used in electronic fuel injection in order to maintain a good fuel system setup. Understanding air/fuel ratio can be very helpful when setting up your fuel system. It can mean the difference between a successful run and a blown engine.

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