Search results
A compressor map is also vital to pinpoint the precise turbo size by plotting expected air flow and pressure ratio. Calculation Formulas. The formula PR = P2c / P1c is used to calculate the pressure ratio, where P2c and P1c are the absolute outlet and inlet pressures, respectively. For air flow calculation, use Wa = HP x A/F x BSFC/60.
28 lut 2024 · This calculator needs your engine capacity & your desired boost pressure in PSI at your desired RPM. It outputs the pressure ratio, lbs/min and CFM numbers which can then be plotted onto turbo compressor maps. It will help you choose the correct turbo for your horsepower and boost pressure goals.
This article will describe parts of the compressor map, how to estimate pressure ratio and mass flow rate for your engine, and how to plot the points on the maps to help choose the right turbocharger.
23 kwi 2023 · Calculating Air Flow ( Wa = HP x A/F x BSFC/60 ) Mass Flow Rate is the volume of air flowing through a compressor and engine over a given period. This is commonly measured as lbs/min of air flow. This calculation tells us the air flow we need to support our required horsepower target.
22 sie 2024 · CFturbo is a powerful, user-friendly software for the interactive design of turbomachinery components. It allows the design of new models from scratch as well as the modification of existing imported designs.
Capture the movie or screen on the Scan Tool and return to the shop to enter the peak RPM and MAF values into the VE calculator along with intake air temperature, altitude, and engine displacement. The VE calculator will let you know the engine’s breathing efficiency.
This simple calculator is one method to calculate VE. Performing a volumetric efficiency test can reveal the accuracy of a vehicle's Mass Airflow Sensor (MAF) as well as potential issues with the engine and can be the key to successfully diagnosing and fixing a vehicle.
