Fuel In. Jetting Calc. for Top Fuel, BDK Bypass Valve setups

Our fuel injection calculator can provide a valuable air to fuel ratio (AFR) computation for professional top fuel and normally aspirated A-fuel racing for land or water sports.

• For example, a typical blown high percentage nitro V-8 setup will have an AFR less than 1 to 1 at the start and lean out to over 1.5 to 1 at the finish of a 1,000 foot drag race. Incremental tuneup changes to the fuel curve can be determined ahead of time with precise numerical references.
• In a second example, a typical 90% injected nitro V-8 setup will have an AFR less than 0.3 to 1 at the start.  Leanout to keep the 'candle lit' can be numerically determined ahead of time; then set into the fuel bypass controller for numerical control.

Our fuel injection calculator also provides a valuable oxygen to fuel ratio (OFR). Oxygen to fuel ratios (OFR's) from the calculator are a "next level of advance tuning".

• The oxygen part of the combustion process is determined from all sources: nitro, methanol, blower, & air density.
• The total amount of the other parts that contribute to combustion are determined from the fuel. That is specifically carbon, hydrogen, & nitrogen that combust.

Nitrogen in the air, excluded from combustion, is also excluded from the OFR calculation, making the OFR tuning value way more affective.