[s-cars] Hey guys what's faster 0-60 , 1/4mile

[Cody Payne]

Oh..Bill..think you are going to stir up the hornets nest on that one.

-1) Turbo's generally make more boost then supercharger..when was the
last supercharger you saw making 28 PSI?
-2) Turbo's don't rob engine power like a supercharger can because they
use spent exhaust to power them.  The power turbos steal comes from
increased back pressure.. mitigated by larger hotside exducers
-3) Efficiencies of turbos are much higher then a supercharger.
Typically 75% to 50% efficient thus not heating the air as much.
-4) Size Supercharges are large beasts that don't fit in a compact
engine bay
-5) Cost of turbos are generally cheaper then superchargers
-6) A "general" rule of thumb is for that every 1 PSI of pressure you
can create of non-super heated air produces 10 HP.  Thus 26 PSI would be
around 260 HP OVER the NA equivalent of your engine. (This should answer
your question quickly)
	- Unless you are using a high displacement vehicle already turbo
is the way to go

-Advantages of Supercharger typically less lag since only produce 8-12
PSI and is driven directly off the engine crank.

I am sure we haven't heard the last of this argument ;-)

cp


-----Original Message-----
From: s-car-list-bounces+cpayne=bconnected.com at audifans.com
[mailto:s-car-list-bounces+cpayne=bconnected.com at audifans.com] On Behalf
Of Bill Clancy
Sent: Saturday, June 05, 2004 3:50 AM
To: mirko.il at sbcglobal.net; s-car-list at audifans.com
Subject: Re: [s-cars] Hey guys what's faster 0-60 , 1/4mile

who has a supercharged Audi?
Superchargers are great.   I wonder why anyone (any car maker) wastes
their
time with turbos.