Re: S4 with manifolds

[Glen Powell <gpowell@acacianet.com>]

The shop building the KUQEFH flowed both the stock 10V Ur-Q exhaust manifold
and also the OEM-replacement 2-piece manifold. The flow bench showed that
the 2-piece was a *WAY* better piece Vs the old, so good in fact that
extrude-hone would have been a waste of $$$. They just port-matched it and
cleaned it up a bit. It flows better than the head itself. NOTE: this is 10V
Ur-Q stuff, not S4/20V.

>At one time (18 mos ago?), Ned was developing a cast/extrude-honed exhaust
>manifold for the 20v turbo.  his price was going to be about half the
>Lehmann piece.  don't know the current status on this.  Do know that Ned
>will only sell a certain output level chip if you keep the stock manifold.
>question is, does the manifold direct more force on the turbo (>>more boost)
>or does the manifold allow more heat out of the engine, allowing the chip to
>be more agressive?




-glen