07-22-2012, 12:34 AM
Officially Welcomed to the 'Fest
Location: Upstate NY
Join Date: Jan 2012
Mein Auto: 650i x drive retired
Roadsta, good stuff thank you!
Originally Posted by roadsta
In the end, it is always about power.
Revs x torque = power. (In the same way that force x speed = power, in a linear situation.)
So, torque in part
determines how much power a car has, but it also depends on the revs at which it can produce that torque.
An engine that produces high torque, but runs out of revs quickly, cannot keep up with one that has similar torque but can rev higher.
A classic is a Formula 1 engine - nowadays a 2.4 liter V8 without turbos. It produces lower torque than a 650 or even a 640, but it can rev to around ~20,000 rpm - that's why they still produce around 800 hp from a engine that has less displacement than many small cars on the road today.
Power is the amount of work per time unit, and determines how much energy can be converted per time unit - how much speed can be 'added' in a given time.
This makes me want the dinan tune that much more
2008 E92 335i - retired
2010 B8 S4 -retired
2012 F12 650i X drive-retired
2014 F10 - 550i X drive