BMW M3 Forum (E90 E92) - View Single Post - How to measure an Engine's ability to Rev Quickly?

T Bone · 01-23-2008, 08:56 PM

In looking at the performance of the E92 M3, there are things that can easily be measured.... HP, Torque, Area-under-the curve.....

But my question is that one of the beautiful design elements of the S65 V8 is how freely it revs and how quickly it revs.

As you know Revs determine the output of an engine. The higher the revs, the more power an engine produces. If want to understand the basics of the how horsepower is calculated, please do a search.....

So my questions are....

Is there a way to measure how quickly an engine revs? I.e. the ability to generate more power quicker
Does a fast revving engine with the same power / torque ratings as a slower revving engine accelerate the same car faster?

01-23-2008, 08:56 PM	#1
T Bone Brigadier General 536 Rep 4,021 Posts Drives: 2008 335xi Coupe Join Date: Feb 2007 Location: The land where we kill baby seals iTrader: (0)	How to measure an Engine's ability to Rev Quickly? In looking at the performance of the E92 M3, there are things that can easily be measured.... HP, Torque, Area-under-the curve..... But my question is that one of the beautiful design elements of the S65 V8 is how freely it revs and how quickly it revs. As you know Revs determine the output of an engine. The higher the revs, the more power an engine produces. If want to understand the basics of the how horsepower is calculated, please do a search..... So my questions are.... Is there a way to measure how quickly an engine revs? I.e. the ability to generate more power quicker Does a fast revving engine with the same power / torque ratings as a slower revving engine accelerate the same car faster? __________________ "Aerodynamics are for people who cannot build engines"......Enzo Ferrari
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