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temp flap, sheer glee

In message <9705211333.AA16731@nj2.n-jcenter.com> Mike Arman writes:

> Purpose of intercooler (turbo cars) is to reduce temp of pressurised air
> coming from pressure/inlet side of turbo - same reason. When the turbo
> presurises the air on its way to the cylinders, the air heats up. Sometimes
> quite a bit. Need to get the temp back down to reasonable levels, hence heat
> exchanger.

Not really.  The purpose of the intercooler is to increase the density of the 
air.  The fact that the turbo's compression has increased the temperature over 
ambient is exploited by the intercooler, which contributes as much (or more, in 
the case of the Sport) to increasing the air mass per unit volume entering the 
engine as the turbo does.

 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club