Pro-calcs is our on-line fuel injection jetting calculator with 4 different jetting programs. You can now try it out for free for 30 days.

• One program calculates the main bypass jet size
• The second program calculates the nozzles
• The third one calculates jetting for a fuel pressure target
• The forth one calculates the air to fuel ratio & fuel pressure.

Over the last few months, Pro-Calcs, was also upgraded:

• Percent nitro mixtures with methanol can be analyzed
• Nitro ratios can be determined by fuel weight or volume
• Several normally asp. & blown sample baselines can now be selected from a list
• Conflicts from some unique data combinations were removed
• Jetting printouts in CVS format can now be downloaded into a computer app such as Excel.

Try it out: free trial.