Archives: Fuel Injection Racing Secrets 2nd edition

Posts related to our book, Fuel Injection Racing Secrets.

USAC West Coast Sprint Season Feb. 27-28

Check airdensityonline weather, las vegas for yesterday, current, and forecast air density for tuning; track map; elevation; water grains; wind direction; wind speed; weather forecast; data displayed in Imperial or metric units; air density data valuable for racers without portable weather stations; for racers with portable weather stations, data valuable for re-calibration, especially after a […]

NHRA Wild Horse Motorsports preseason testing

Read those spark plugs for good NHRA drag racing preseason tuning; check https://airdensityonline.com/track-results/Wild_Horse_Pass_Motorsports_Park/ for current air density, density altitude, water grains, temperature, humidity, uncorrected barometer, wind speed, wind direction, dew point, saturation pressure, vapor pressure in imperial or metric units; yesterday’s record  and tomorrow forecast  already determined in air density units.  Check https://airdensityonline.com/free-calcs/ for free […]

Impulsing the fuel injection fuel curve

We are seeing racers from time to time who open and close a fuel injection bypass to pulse the fuel curve.  According to our numerical analysis of air to fuel ratios from our ProCalc fuel injection calculator, bypass jet sizes much bigger than 0.050 inches are too large if they are shut off or on […]

Good Fuel Pressure with a New MFI System

Setting up a new MFI fuel system: main bypass adjustment to control the air to fuel ratio adjustment of the combination of the main bypass and nozzle sizes to maintain an optimum fuel pressure range from the lowest to highest engine RPM. Changing the main bypass jet for tuning affects the air to fuel ratio […]

Solutions to Idle Lope in Mechanical Fuel Injection

Customer Inquiry One of our customers recently inquired about idle lope in his funnycar dragster.  ‘What can I do to minimize idle surge on our funny car?  It’s difficult to stage at the starting line.  It has a Bruno (torque converter), Lenco transmission, Enderle Bird Catcher fuel injection hat, Enderle K type barrel valve with […]

Rons Low Cost Throttle Body Fuel Injection CFM & HP Capabilities

Rons Fuel Injection has provided us with air flow data for their throttle body setups.  We analyzed the power potential of these simple and very popular fuel injection systems. Racing engine size capabilities were determined at the flow CFM numbers provided by Rons Fuel Injection.  For 100% air density, horsepower capabilities were also determined. Rons […]

Greg Means Racing wins Nost Elim drags

Congradulations to the Greg Means racing team for winning the Nostalgia Eliminator I drag racing class at the Sacramento Funny Car fever race. Greg’s setup lasted to a final round win. Not too long ago, Greg took his team to a high altitude drag race track, adjusted for the altitude, and ran his number right […]