[Biturbos4] APR Chip?

Richard Harris rnharris at bellsouth.net
Thu Feb 5 16:55:51 EST 2004

Yep, K04 cars really move. ->http://s4biturbo.com/timeslips.cgi


-----Original Message-----
From: biturbos4-bounces at www.audifans.com
[mailto:biturbos4-bounces at www.audifans.com]On Behalf Of David Lau
Sent: Thursday, February 05, 2004 3:34 PM
To: Audi S4 list
Subject: Re: [Biturbos4] APR Chip?

Oh yeah, it's not subtle...
Quantitatively, I think APR says torque goes from 256 ft-lbs to 384. Where
boost maxed at 9psi stock, it spikes to 19psi and holds at 16-17 with the 93
octane program. On the dyno, torque was over 300 ft-lbs (I'll have to find
the printout for stock). Apparently there's a fair amount of loss through
the quattro.

Qualitatively, 2-lane passing becomes effortless, hence very safe. On the
interstate, you can move from "back here in this lane" to "up there in that
lane" instantly. After a run at our local dragstrip, the announcer came on
and said "jeez, that guy just pulled a 13.9 in the grocery-getter". ;-)

From: Andy Turner <andy at palomar.demon.co.uk>
Reply-To: andy at palomar.demon.co.uk
Date: Thu, 05 Feb 2004 13:12:22 +0000
To: biturbos4 at audifans.com
Subject: Re: [Biturbos4] APR Chip?

On Wed, 04 Feb 2004 09:59:24 -0500, you wrote:

>Any time. You've got to hold the cruise switch out for several seconds to
>cycle throuth the choices. I don't recommend it while rounding a corner,
>cruising along, you can switch programs.
>I sometimes go back to stock or even valet mode for snow or ice. Valet mode
>is a hoot. It allows NO boost, and rev limits at about 4k. Feels like a

hehe, cheers for that. Any comments on the increase in performance?
since presumably it's easy to compare one to another when you can
switch so easily!


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