RAD Calc - Relative Air Densit
Auto & Vehicles
App to calculate Relative Air Density for engine tuning at the race track
- Downloads
- 5+
- on Google Play
- Price
- $8.49
- No in-app purchases
- Updated
- Apr 25
- 2021 · v2.21 Full
Screenshots
About RAD Calc - Relative Air Densit
Relative Air Density (RAD) is a measure of how much Air is available to be mixed with Fuel and burnt to make the most power.
Too much Air and the mixture is Lean, Too little ait and the mixture is Rich.
Too Rich and the engine runs sluggish, too Lean and possible engine damage awaits.
By being able to compare RAD from one day to another, a Race Engine Tuner can make the necessary adjustments to adapt their tune to a known good setting.
RAD Calc enables you to measure the Air Density and your Jetting then save it for future reference. At a later date, the current Air Density can be compared to a stored setup and suggested Jetting changes considered.
RAD Calc is a Tool to help in your jetting decisions, it still takes some common sense and an understanding of Race Engine Tuning.
Too much Air and the mixture is Lean, Too little ait and the mixture is Rich.
Too Rich and the engine runs sluggish, too Lean and possible engine damage awaits.
By being able to compare RAD from one day to another, a Race Engine Tuner can make the necessary adjustments to adapt their tune to a known good setting.
RAD Calc enables you to measure the Air Density and your Jetting then save it for future reference. At a later date, the current Air Density can be compared to a stored setup and suggested Jetting changes considered.
RAD Calc is a Tool to help in your jetting decisions, it still takes some common sense and an understanding of Race Engine Tuning.
What’s new
Version 2.21 Full · Updated April 25, 2021
Increased database capabilities Lookup table of Jets and their actual measured sizes Jets with * are calculated Imperial and Metric Temparature and Atmospheric Pressures Setting Page will soon have the ability to add additional Jets and measured Sizes. More to come soon...
Alternatives to RAD Calc - Relative Air Densit
Looking for apps like RAD Calc - Relative Air Densit? Here are 3 similar Android apps on Google Play. The highest rated is Cooper's Hawk (4.8/5), and all 3 are free to download.
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| RAD Calc - Relative Air Densit | – | $8.49 | 5+ | Apr 25, 2021 | |
| ATPL Questions | – | Free | 5,000+ | Oct 22, 2026 | Compare |
| IFSTA Instructor 9 | 3.9 / 5 | Free | 5,000+ | Oct 31, 2025 | Compare |
| Cooper's Hawk | 4.8 / 5 | Free | 100,000+ | – | Compare |