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What’s new for June?

By Jennifer on June 1st, 2017 in Main News

Things are running smoothly here at Air Density Online and we're working on some great upgrades to the site. We hope your racing season is going smoothly as well! We've added some new tracks to the tracks page. Check them out or send us any tracks you don't see on our site yet.

Additionally, we've been writing brief articles to help understand how to use this site while tuning your engine. Check out what we've written here!

Tuning with methanol vs nitro

By Jennifer on May 22nd, 2017 in Info and Education, Main News

The basics of engine tuning involve finding the right ratio of fuel mixed with air to get the right amount of power out of your engine. When you have a familiar engine setup and always race with methanol, that task can become tried and true. When you add percentages of nitro, things suddenly get more complex. Following are some of the differences between nitro and methanol.

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Tuning Success Story: Bill Ketterman

By Jennifer on May 8th, 2017 in Features, Main News

Bill is a drag racer who races a 612 ci fuel injected methanol / nitro V-8 in his very rare 1950 Plymouth racecar. Bill also races a blown alcohol V-8 in a drag racecar. Bill is quite well known in the San Diego area because of his unique setups.

Previously, Bill ran a nitrous gas combination in his 1950 Plymouth. He decided to convert to fuel injection and methanol. He recently started tuning with the ProCalc app so that he could do his own tuning. Now he is working with low percentages of nitro.

"I depend on the ProCalc calculator app. for my fuel injection tuning. I do not have to rely on my engine builder or prior flow bench test any longer."

Bill Ketterman Racing Bill Ketterman Racing

What’s New in May

By Jennifer on May 1st, 2017 in Main News, Site News

We are busy updating the site and adding tracks. Check out the tracks we added last month:

We want to build up our list of tracks so if you don't see a track you race at, let us know! We can add tracks in the US, Canada, and Australia.

Atmospheric water vapor and horsepower

By Jennifer on April 25th, 2017 in Info and Education, Main News

File this one under reasons to keep track of the local weather on race day.

Have you ever noticed that your car runs really well first thing in the morning when it's cool and dry? Have you noticed that performance starts to suffer as the day gets more humid? That's because water vapor in the atmosphere decreases horsepower.

Humidity is a result of water vapor suspended in the air. Any amount of humidity displaces some of the air molecules. Since only about 20% of air is oxygen and oxygen is what is needed for combustion in an engine, anything that displaces air can really decrease the amount of oxygen. Water vapor is not flammable and does not contribute to combustion heat. Any reduction in the amount of air from the suspension of water vapor in the air results in a corresponding reduction in the amount of oxygen and combustion.

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Check out SEMA’s Hot Links Section

By Jennifer on April 24th, 2017 in Main News

If you need to learn about great automotive related websites, check out SEMA's Hot Links to Cool Sites page. This week we are proud to be included in that list! Check it out:

SEMA eNews Vol. 20, No. 16: Hot Links to Cool Sites

Tuning Success Stories: Greg Means

By Jennifer on April 10th, 2017 in Features, Main News

Periodically, we will be featuring racers who have had success using our ProCalc Jetting Calculators. For our very first feature, we will be highlighting a racer local to us, Greg Means.

Means Racing - Photo courtesy of Victor Archer, 2016

Means Racing - Photo courtesy of Victor Archer, 2016

Ashlyn Means does much of the ProCalc analysis at the track. Greg's racecar is a 7.6 second ET dragster with a blown alcohol small block V-8 racing engine by Means Racing. Greg said he is confident with the ProCalc math and is confident with air to fuel ratio tuning that is the feature of ProCalc.

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Our home track, Sacramento Raceway, may be going the way of the dodo

By Jennifer on April 7th, 2017 in Main News

A couple of weeks ago we learned that our home track, Sacramento Raceway, in Sacramento, CA may be shutting down very soon. The track was grandfathered into zoning that allowed a race track but that was set to expire in 2020. The owners have now put the land up for sale but any transfer of ownership will negate the special status the track received.

We will be very sad to see this track go. Bob, Jennifer, and many others in the local racing community will miss this track greatly.

A Facebook group has been set up. Hopefully we will, at least, be able to finish out the 2017 racing season. For the time being, if you would like to see the current and forecasted weather we have on our site, click below:

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