weather calculations for racing engine tuning
ProCalc
Jetting
Calculator
Jet your car from anywhere with an internet connection. Have a smartphone? You now have a portable jetting calculator.
FREE
Weather
for tracks
Real-time density altitude from current weather data at various tracks including: NHRA & IHRA dragstrips, road courses, dirt ovals.
ProTune
Custom
Setups
Get your MFI fuel system setup programmed into ProCalc. Even get your dyno data added. You get 1 year of access to ProCalc too!
Thanks for visiting our site. We provide real-time, historical, and forecast weather data for racing engine tuning. We also provide engine tuning tools for mechancial fuel injected racing engines. We are constantly adding tracks to the site. If you'd like to see your track added to the list, send it over. Learn more about this site and it's creators or read some of the articles we've written.
What's New
January 22, 2020
Review some articles…
Racing season in the US will be starting up soon. Review some of our articles to refresh your tuning skills. We've written several articles on weather and engine tuning. Here are a few we are particularly proud of.
- Air Density Tuning at MLRA Lucas Oil Speedway Oval Track This article discusses engine tuning preparation and planning for a specific event. The event highlighted in this article featured stock car racing at a paved oval track but the details apply to any racing type.
- Calculating Critical Air Scoop Speed With A Forward Facing Inlet We discussed tuning considerations for forward facing air scoops when factoring in weather conditions.
- Article series on RaceCarBook.com We wrote a series of articles that appeared on RaceCarBook.com. The articles discuss air/fuel ration, ignition timing, fuel selection, and data logging tools.
January 11, 2020
Whats new for 2020
We are excited for the 2020 racing season to get started. In the meantime we're adding new tracks and updating the site like crazy. Recently we added a number of motocross tracks to the site.
- Hangtown Motocross - Rancho Cordova, CA
- Fox Raceway - Pala, CA
- Thunder Valley Motocross Park - Morrison, Co
- WW Ranch Motocross Park - Jacksonville, FL
- High Point Raceway - Mount Morris, PA
- The Wick 338 - Southwick, MA
- RedBud MX - Buchanan, MI
- Spring Creek MX Park - Millville, MN
- Washougal MX Park - Washougal, WA
- Unadilla Motocross - New Berlin, NY
- Budds Creek Motocross - Mechanicsville, MD
- Ironman Raceway - Crafordsville, IN
If you race at a motocross track not listed here - or any kind of racing track - let us know and we'll add your track.
January 1, 2020
Happy New Year
We have lots of new things in the works and lots to look forward in the new year. We hope you are recovering from the holidays and looking forward to the upcoming racing season.
Here are some of the latest tracks we've added.
- East Alabama Speedway - Phenix, AL
- Tri-County Speedway - Flomaton, AL
- Rockcastle Speedway - Mount Vernon, KY
- South Alabama Speedway - Kinston, AL
- Red River Valley Speedway - West Fargo, ND
- Boothill Speedway - Greenwood, LA
- Thunder Valley Speedway - Pitkin, LA
- Battlefield Dragstrip - Collinsville, MS
Thanks for visiting. View the FAQ section for more information about using this site.
