Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL ANALYSIS OF THE PERFORMANCE AND SUBSEQUENT UPGRADE OF A RACING 3.0 L PORSCHE 911 ENGINE
Submission Author:
Carlos Pinho , Portugal , Brazil
Co-Authors:
Pedro Pitrez, Carlos Pinho
Presenter: Carlos Pinho
doi://10.26678/ABCM.ENCIT2020.CIT20-0019
Abstract
The 1D software package Lotus Engine Simulation was used to numerically evaluate the performance of the atmospheric 3.0 L engine of a 1974 Porsche RSR racing car. The software construction of the engine took into consideration all the original dimensions of the different components of the engine. Changes in the original atmospheric engine configuration were done in order to improve its performance and a maximum power of 242.73 kW and a maximum torque of 306.17 Nm were obtained, and compared with the expected values of 232 kW and 313 Nm, being the differences meaningless in practical terms. Subsequently a KKK turbocharger, model K36 was applied to the engine, as per the 1976 3.0 L Porsche 934, and after several adjustments, and engine tuning, a maximum power of 468.05 kW and torque of 1027 Nm were obtained, and compared with the available reference values of 362 kW and 588 Nm. This last upgrade, for the supercharged engine, lead to a stronger performance improvement because the reference was a road car whereas the obtained performance results are for a racing car configuration.
Keywords
Lotus Engine Simulation, Engine Performance, Racing car
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