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通常,车辆用涡轮增压V8发动机的性能不及具有同样基本规格的直列六缸发动机的性能。为了改善平均有效压力,进行了使用计算机程序的进排气系统的再匹配,而不用任何特殊的昂贵装置,例如放气阀或复合进气。在管路的不同匹配方法中,四缸组合管路除了低速性能差以外显示出最好的结果。此外,在规定的最大压力的极限下,靠谨慎地选择较小的涡轮尺寸和较短的进气凸轮持续期,在整个速度范围内取得了较好的平均有效压力,这是有效利用脉冲压力的结果。
In general, turbocharged V8 engines for vehicles do not perform as well as in-line six-cylinder engines with the same basic specifications. In order to improve the average effective pressure, a recalibration of the intake and exhaust system using a computer program was performed without any special and expensive equipment such as a purge valve or a compound intake. In the different matching methods of the pipeline, the four-cylinder combined pipeline shows the best results except for the low speed performance. In addition, a better mean effective pressure over the entire speed range was achieved by carefully selecting a smaller turbine size and a shorter intake cam duration at the maximum pressure limit specified, effectively using pulsed pressure the result of.