[audi20v] Re: Turbo'ing your CQ!

[james accordino]

--- QSHIPQ at aol.com wrote:

> Boost regulation is only provided by wastegate and
> it's regulation.  Neither 
> bypass or popoff valves "regulate" boost.

Agreed.  Wastegate is the only device that controls
how much boost is produced as it gives the exhaust gas
someplace else to go besides through the turbo. 
Anything on the intake side can only manage boost that
has already been produced.  Pop-off valves on Indy
cars were precisely measured to control how much boost
you could use or introduce into the engine.  It has
nothing to do with the amount or pressure of the air
you produce.

Jim Accordino