Quote:
Originally Posted by JoosyJoos
As noted already, you're viewing this quote through a myopic lens.
That is a well known quote. Quoted in almost any racing book you will find on the shelves. Specifically that is a quote from Ross Bentley--- you can look him up if you're not a car nut. Keep the insults out of it unless you can back up your statements or contribute something positive to the thread.
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BMWPower06 is right guys, and Enzo & Ross are wrong, sorry for this.
The engine only delivers torque as output of interest and power is just a calculated theoretical parameter (Tq x rpm). The acceleration is completely proportional with the torque. OK, so why is BMWPower06 right in his statement then since this seems to prove Enzo's position?
BMWPower06 includes the transmission line and the reduction (gear/bridge-diff/wheels) and then the game changes. When you have an engine capable of producing high power = much torque at high rpm, you can install a SHORT tranmission to cover the speed range. With a slow running (cfr. big displacement diesel), you need a LONG transmission to cover the same speed range. So when engine 1 tops at 300Nm@2000 rpm and is out of steam at 4000rpm, its transmission is twice "as long" as an engine delivering 300Nm@4000rpm running uptill 8000rpm. Notice that the POWER of engine 2 is double as high as the one of engine 1.
Now it all comes together with the last physical law: Output on the wheels is output of the engine multiplied with the overall reduction of the entire transmission line. So a SHORT transmission (high rpm at lower speeds) multiplies the engine torque more than a LONG transmission (low RPM at high speeds). The conversion is pure proportional so in the former case: both engines deliver 300Nm, but the one with the SHORT transmission has DOUBLE the wheel torque and hence double the force to fit in Newtons law= Acceleration = force / mass. And this is the main reason a F1 is this bloody fast: it has low torque (helping in keeping the mass low) but revs over 18000rpm, allowing a fantastic output multiplication in the transmission line to cover the speed range required. So you're both right concerning F1, high power is the nominator and low mass in the denominator both are not contradicting each other but both components are equally important and fundamental.
Simple: this new M5 would accelerate identical with an engine delivering 1360Nm and a cut off at 3600rpm instead of 680Nm with cut off at 7200rpm. Assuming the mass of the car remains the same. Notice that the power is in both case equal at 560hp, the torque however is massively different. So Enzo and Ross are wrong and BMWPower06 is right! :-)