[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: S4

I was always under the impression that:

    torque = pulling power
    horse power = acceleration

An over square engine (b>s) will generally be low in torque at lower rpms, but
will rev freely and create hp as rpms build.
An undersquare engine (s>b) will pull from lower rpms and loose power as they
Of course, I could be wrong, as I was once.  (Voted for McGovern)

ScottyCBoy@aol.com wrote:

> In a message dated 4/8/99 9:14:42 PM Central Daylight Time,
> urquattro@surfree.com writes:
> << Oh, I know this.  But while it may help initial torque, it limits the
>  potential of the engine to produce massive amounts of power without MAJOR
>  modifications.
>  Basically, I don't like the theory of small bore long stroke engines.  It
>  puts a lot of stress on the lower end, and limits redline and power
>  potentials...
>  For example, Audi engines have what, 86 mm strokes lets say, that's about 3
>  inches or so.  An F 1 or Porsche boxer engine has a stroke of maybe 1.5-2
>  inches...sometimes less...
>  that is the way to go...large bore, short stroke....interesting way for
>  Audi to go...but i guess they really aren't a performance car
>  company.....hmm >>
> Audi makes commuter cars, that is cars for every day driving, and the
> occasional weekend driving event.  That means one thing TORQUE.  With torque
> you can always get horsepower and using the proper gearing the sky is the
> limit.  Look at some of the modern turbo Diesel Trucks torque in the figure
> of 1,200 to 2,000 ft lb. of torque.  Some of the European racing trucks will
> top out way above 150 MPH, it's torque that glues your back to the seat not
> horsepower.
> Scotty