[s-cars] Re: Timing belt vs Gears vs Chain

[William Noland]

Right, the neu S4 uses a chain (stronger than a similarly sized belt) for
packaging reasons. I was referring to the Audi "multitronic" continuously
variable transmission (CVT), when I said, "Note the chains on the Audi CVT.
Belts won't take the torque". Audi created a chain to replace the typical
belt in their CVT and got around the traditional torque limitation of
belt-driven CVT's. See http://www.audiusa.com/technology_attributes

Bill Noland

Gabriel Caldwell wrote:

> "The neu S4 has a chain, because a belt of similar size just won't hack
> it. Note the chains on the Audi CVT. Belts won't take the torque."  This
> statement is incorrect.  Audi put the chain on the neu S4 and at the
> back of the engine for space considerations.  There are many other belt
> driven cars that make more torque than the neuS4.
>
> Gabriel Caldwell
>