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    Producing Quality Computer Tools for Racers and Engine Builders since 1986

 

 

 

 

 

Weather Wiz v1.1 for Windows 98/Me/XP/2000/NT/Vista

Computer Program to make Weather Calculations which affect Engine, Carburetor Fuel Metering and Vehicle Performance for Drag Racing, Circle Track Racing, Road Racing, Dyno Tuning, and Street Tuning

Our new Weather Wiz lets you easily make all those weather related calculations like Density Altitude, Relative Air Density, Dyno Correction Factor and more.  It lets you specify the inputs you want to use for entering barometric pressure, humidity and air temperature.  

Unlike most programs, you don't have to use the same types of inputs for the comparison.  For example, your baseline condition may use a barometer instrument, and your comparison may use an altimeter.  Or your baseline condition may use wet and dry bulb temperature for humidity, but a dew point reading for your comparison conditions.

It also lets you specify the air temperature at the engine (which is the critical temperature) different than where the humidity was measured.  For example, your relative humidity instrument (or wet and dry bulb instrument) may be in your trailer or dyno control room.  However, the air going to the engine may be considerably warmer.  This definitely has an effect on engine performance and carb jetting.

 

Features:

Enter Barometric Pressure in:
Measured "True" or Actual Pressure like with a barometer at the track or shop
Corrected Pressure (like from a TV or radio weather report) and elevation
Altimeter from an aviation altimeter corrected to 29.92 and 60 deg F
Enter Humidity in:
Dew point
Relative Humidity and the temperature where the relative humidity was measured
Wet and dry bulb temperatures
Water vapor pressure in inches of mercury
Grains of moisture per pound of dry air
Show calculated outputs of:
Dew point
Relative Humidity
Water vapor pressure in inches of mercury
Grains of moisture per pound of dry air
"True" or Actual Barometric Pressure
Corrected Barometric Pressure like from a TV or radio weather report (corrected for elevation)
Density Altitude (typical calculation, not correcting for humidity)
Dry Density Altitude (correcting for humidity)
Relative Air Density 
Standard Definition
Standard Definition, but correcting for humidity
Correcting for Humidity AND correcting for Temperature in a method more accurately for engine performance predictions
Save, save as (to a new name), delete, and open your sets of conditions to either the Baseline Side or Comparison Side of the screen.
Copy conditions from one side to the other, or swap conditions with one click buttons.
Print your results.
Lets you do side by side comparison of all jets for your carb(s), 2 barrel, 4 barrel, three 2 barrels, two 4 barrels, etc.
Lets you correct for the size power valve you are running, or perhaps there is no power valve restrictor.
See how much richer or leaner your engine will run with out rejetting, or see what the Weather Wiz would recommend for rejetting.

 

What you need:

IBM or compatible computer with Windows 98/Me/XP/2000/ NT and Vista.  for Vista tips.

 

More Information, Download Demo:

to go to our Demo Downloading page to download a FREE Weather Wiz Demo.

 

 

To Order:


Weather Wiz: Our DOWNLOAD ONLY option. If you only want the unlocking code and DO NOT want a CD shipped, click on Add to Cart below. You will not be charged shipping.
$49.95

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Weather Wiz: If you want a CD shipped to you, click on Add to Cart below. There will be shipping charges added to your order. You can still download the demo and get your unlock code sooner with this option.

$49.95 plus shipping

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