August 27, 2007
神话破坏者IV：性能转换器修改
艾德李
神话破坏者II：性能转换器修改
艾德李
转换器更换是对车辆所做的唯一变化，并且仅对每个测试的转换器进行一次修改。在本系列的第I部分中，转换器A具有改进的定子 - .250“已经从定子的叶轮侧加工，并且该修改降低了转换器的档位。测试车对这种改进有利响应，这将有助于车辆的牵引能力，并且可能提高燃料经济性。
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This month we look at how converter B tested. Converter B also had a modified stator. The difference is that in this converter, .175” was machined from the turbine side of the stator. (图1shows the modified stator below an OEM stator.) This particular modification is popular on performance converters to increase stall. Since no brake stall test or timed acceleration test was performed for these evaluations, there was no measurable increase in stall. When you compare the graphs of the OEM converter vs. modified converter B in the overlay in图2.，您可以看到两个转换器的马力和扭矩读数从大约2300 rpms开始。您还可以看到改进的转换器B的马力和扭矩读数仍然低于整个运行OEM转换器的读数。当您在特定RPMS的修改B转换器进行OEM VS的逐行比较时，您会看到戏剧性的差异（见图3.）。
最大的差异发生在3000 rpms。OEM转换器在该RPM断裂处优于16 HP和10英尺/磅的扭矩。在整个运行中，性能差异至少为OEM转换器仍然更好。
This is where the trade-offs mentioned in Part I come into play. The wide-open throttle horsepower tests are great for evaluating the horsepower and torque that is being delivered to the ground. However, they do not show the acceleration
车辆的价值。通过加工涡轮side of the stator, you are increasing the distance between the turbine and stator, and this will raise the stall of the converter. This can be very beneficial if the power band level of the engine has been enhanced and the converter stall is increased to meet this level of performance. But as you can see from the graphs and charts, better acceleration on a stock engine application comes with a price. The inefficiency that helped create the higher stall decreases HP and torque during normal operation.
Inefficiency is also related to an increase in temperature. By the third run, the modified converter was 10° F hotter than the OEM converter. When you consider that the total run time – including the 30-second delays between runs – was less than 2.5 minutes, that increase in temperature is significant. Prolonged use of a vehicle with this modification would normally require additional cooling.
转换器的一部分效率来自修改本身。OEM定子的定子刀片在涡轮机侧更宽且圆润（参见图1）。这有助于将油流从涡轮机重定向到叶轮。改性定子具有暴露于离开涡轮机的油的平加工表面。撞击这种表面的油将偏转回涡轮机，减慢其旋转。
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当您考虑到转换器的修改时，评估所有优点以及权衡。最终结果应该是您申请的最佳妥协。
特别感谢Sean Boyle和学生Zack Emberton，Ross Rohlman和南伊利诺伊州南部大学的卢克戴维斯，在编制这些信息方面的帮助下。
Ed Lee是一个Sonnax技术专家，他们在重点转换器Rebuilders的兴趣问题上写道。bob游戏怎么下载Sonnax支持这一点bob游戏怎么下载变矩器变形人s Association。
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