Software: click "Help" tab (top toolbar) & "About Holley EFI".įirmware: click "Sync With ECU" & "Get ECU Info" (Key-on/USB connected). ‒ Tuning information can be read by clicking the F1 key, when you're viewing any screen. This automatically opens the definitions for that specific parameter. ‒ When navigating the software, click "Help ?", drag it to any parameter and click again. ‒ On the top Toolbar, click "Help" & "Contents". EFI Software Help Information/Instructions:.The dome pressure sensor should be a 554-102 pressure transducer, or a 554-108 5 bar MAP sensor (depending on yourīoost psi - LINK). (Holley EFI Wiring Manual - Section 2.1 "Pin-Outs", Pages 6, 7 & 8) However, if using the PWM+ Outputs, they should be wired on the J2B connector. The Dominator ECU can use either type of Output (PWM− or PWM+) for the boost solenoids. The HP ECU should use PWM− type of Output for the boost solenoids ( LINK). The solenoid +/− "Output Type" is selected in the Inputs/Outputs screen of the Boost ICF, then Pin-Mapped. The "Boost −" solenoid is the "Vent" solenoid, and the "Boost +" solenoid is the "Fill" solenoid. The Holley EFI electronic boost controller uses one input & two outputs for the dual boost solenoid control type. (Enter kPa at left, and select psig or psia at right.) Here's an excellent pressure conversion calculator: ![]() (Read "Gauge Pressure" toward end of page one.) There are 6.8947572932 kilopascals in a pound per square inch but only 0.1450377377 pounds per square inch (psi) in one kilopascal (kPa).Every 6.9 kPa over 101, is 1 PSI G of boost:ġ bar MAP = 100 kPa / 00.00 PSI G - 14.70 PSI A (sea level - naturally aspirated)Ģ bar MAP = 200 kPa / 14.31 PSI G - 29.01 PSI A (sea level - forced induction)ģ bar MAP = 300 kPa / 28.81 PSI G - 43.51 PSI A (sea level - forced induction)Ĥ bar MAP = 400 kPa / 43.32 PSI G - 58.02 PSI A (sea level - forced induction)ĥ bar MAP = 500 kPa / 57.82 PSI G - 72.52 PSI A (sea level - forced induction)Ħ bar MAP = 600 kPa / 72.33 PSI G - 87.02 PSI A (sea level - forced induction)ħ bar MAP = 700 kPa / 86.83 PSI G - 101.5 PSI A (sea level - forced induction)įYI: The Holley EFI software MAP kPa load scale (Y axis) will display:ġ bar-105 kPa, 2 bar-210 kPa, 3 bar-315 kPa, 3.5 bar-350 kPa, 4 bar-420 kPa, 5 bar-520 kPaĭon't confuse PSI G (boost gauge) & PSI A (absolute with atmosphere): ![]() Yes, one kilopascal (kPa) is larger than one pound per square inch (psi). Both approaches will give you the correct psi value. The second option is to multiply kPa by 0.1450377377. The first option is to divide kPa by 6.8947572932, which is the number of kPa in one psi. You have two conversion options to convert kilopascals (kPa) to pounds per square inch (psi). You will typically encounter psi pressure readings in tire pressure measurements, pump pressure, fuel storage, hydraulics, non-SI industrial applications, and in the sciences. The definition of psi is the pressure resulting from one pound-force applied to an area of one square inch. Psi is a non-SI unit, while Pascals (Pa) is a SI unit. Pounds per square inch, abbreviated as psi, is a unit of pressure. In countries that use the imperial system of measurement or the United States customary system of units, psi is the preferred unit of pressure. You will encounter kPa in everyday life when taking a tire pressure, checking water pressure, measuring air pressure, and inspecting pressure tanks. In academia, kilopascals are used in chemistry, engineering, hydraulics, physics, and geophysics. Kilopascals (kPa) are the standard unit of pressure in countries that use the International System of Units (SI units). The Pascal unit is named after Blaise Pascal, a French mathematician, physicist, and philosopher. ![]() It is a multiple of the Pascal pressure unit, which is equivalent to one newton per square meter (N/m2). In SI base units, a kilopascal is equal to 1,000 kilograms per meter per second squared. This makes sense since pressure equals force per unit area, in this case, newtons per square meter. A kilopascal is the pressure of 1,000 newtons per square meter. The unit of pressure kPa stands for kilopascal. Here are the answers to some of the most common conversions and questions people ask about kPa to psi. People often have specific questions about converting from kPa to psi. Frequently Asked Questions About Kilopascals (kPa) to Pounds Per Square Inch (psi)
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