2001 Audi RS4 Avus Silver

Started by le mans, March 21, 2016, 02:28:56 PM

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le mans

Prompted by Ash, I'm going to put together a little history of my RS4 like I have for my RS2.

I bought it in November 2007 from CCS with 47,222km (according to carjam records).


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le mans

#1
Jan 2008
Getting it dusty on a drive to Tauranga:

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le mans

#2
May 2008
Old Te Aroha Rd:

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le mans

#3
Oct 2008
After owning a rather special B5 1.8TQ for a number of years, I loved the RS4's engine, but was underwhelmed by the chassis. So, after some research, I purchased a set of Hotchkis uprated sway bars from the US.

I have to say it made a massive difference to the roll control and general sharpness of the steering and handling.

Around this time I had the car remapped for the first time. This made it rather more rapid, more due to torque rather than max power.

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le mans

#4
Dec 2008
Car on the dyno at the Torque Performance VASK dyno day that I organised:

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TP were concerned it wasn't going rich at full power. Unknown to them, the factory ECU uses closed loop fuelling at lambda = 1 until modelled EGT exceeds 750 degrees, when component protection kicks in (enrichment).  Dual EGT sensors also trigger more fuel when exhaust temp hits 980 degrees, with the aim to keep EGT below 1000 degrees.

le mans

#5
Jan 2009
Gordon from final touch did a great job making it shiny:

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RS ZWEI

Jon, do you still have the B5 Le Mans?
1980 VW Golf GTI Track Car
1995 Audi RS2
2003 Mini Cooper S (Written off - rear ended)
2005 Mini Cooper S
2006 Skoda Octavia vRS Combi
2009 Renault Megane 230 R26 (Written off - rear ended)
2013 Renault Megane RS265 Redbull RB8

le mans

#7
Quote from: RS ZWEI on March 21, 2016, 08:59:14 PMJon, do you still have the B5 Le Mans?
Yes indeed, still going strong and about to click over 170km. It's our family car these days.

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RS ZWEI

Quote from: le mans on March 22, 2016, 12:05:24 PM
Yes indeed, still going strong and about to click over 170km. It's our family car these days.



Cool. Like the new carport.
1980 VW Golf GTI Track Car
1995 Audi RS2
2003 Mini Cooper S (Written off - rear ended)
2005 Mini Cooper S
2006 Skoda Octavia vRS Combi
2009 Renault Megane 230 R26 (Written off - rear ended)
2013 Renault Megane RS265 Redbull RB8

le mans

#9
Mar 2009
Installed Fidanza single mass flywheel, along with brand new factory RS4 clutch.

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Pluses: Engine more free revving, able to blip the throttle on down shifts, direct torque feedback from the powertrain, easier to achieve smooth gear shifts.

Minuses: lose some rotational inertia at low engine speeds (not really an issue with the V6), lack of vibration damping at low engine speeds when under load.

le mans

#10
Jun 2009
Torque Performance offered me a free run on their dyno. This is still with the previously remapped ECU. You can see how the fuelling stays close to lambda=1 throughout the run. I stress this is exactly what the factory tune does as well, but many tuners prefer to go open loop and run richer at WOT to keep things cooler. More on this later. I think it's OK for stage 1, but probably not ideal. Depends who you talk to I guess.



Here is a quote from page 45 of the 2.7TT Self Study Guide:
QuoteThe Motronic controls the exhaust gas temperature to 980 C by enriching the air/fuel mixture .
It is therefore possible to largely dispense with the prophylactic enrichment process that has been standard practice until now.
The mixture is only enriched...

... when necessary and
... to the extent necessary.
This means that engine operation with lambda = 1 is possible up to high load and engine speed ranges.

Advantage:

Improved efficiency and reduction of fuel consumption as well as exhaust emissions

So basically it's an efficiency/emissions driven ideology. You can read the full study guide here if you want to: http://www.ibiblio.org/tkan/audi/2.7Biturbo-SelfStudy.pdf

le mans

#11
Oct 2009

Purchased and installed a JHM SS kit:

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I've since returned to the stock shifter, as I find it smoother.

Moody photo at the Tank Farm (now know as Wynyard Quarter):

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le mans

#12
Jan 2010
Further looking to enhance the chassis, I purchased Bilstein B16 PSS9 suspension. This was fitted by my mechanic at the time. The suspension is height adjustable and each damper has 9 damping adjustments.

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The ride is quite firm but the stability you gain, especially at higher speeds, is well worth it.

Poonmobile

Nice Jon, this reads as a wish list for any B5 Rs4 owner!
Current:
06 NZ B7 RS4 Avus Silver, 01 NZ B5 RS4 Avus Silver, 93 NZ VR6 Tornado Red 3dr, Renault Clio 172 & Renault Clio 197
Past:
MK2 VR6, MK5 GTI, 2 x MK5 R32, 8L S3 Imola, MK4 Golf V6 4MO, Polo GTI, 2x MK3 VR6, D2 S8, B5 S4 Avant, 03 NZ R32 Deep Blue Pearl, Renault Megane R26 liquid yello

le mans

#14
Dec 2010

Cat-back Supersprint exhaust from Italy. A bit $$$!






le mans

#15
Jan 2011

Purchased a RaceDiagnostics Liquid Multi-Gauge. It offers great peace of mind being able to monitor various engine parameters, such as requested and actual boost pressure. I use it every time I drive the car. It is no longer available for purchase - it appears the company no longer exists.

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After I got it installed I did a little review:

https://youtu.be/y3KC8jUIO68

le mans

#16
Mar 2016

Just maintenance and occasional driving since then, not daily these days.


Poonmobile

Found a concours pic from 2014

Current:
06 NZ B7 RS4 Avus Silver, 01 NZ B5 RS4 Avus Silver, 93 NZ VR6 Tornado Red 3dr, Renault Clio 172 & Renault Clio 197
Past:
MK2 VR6, MK5 GTI, 2 x MK5 R32, 8L S3 Imola, MK4 Golf V6 4MO, Polo GTI, 2x MK3 VR6, D2 S8, B5 S4 Avant, 03 NZ R32 Deep Blue Pearl, Renault Megane R26 liquid yello

GorGasm

Somewhat envious, sure i have seen this around in AKL many times.  Nice work.

le mans

Thanks, it's been very much a work in progress. As you can see, the changes were made incrementally and over quite a long period of time. I like to ponder things a bit and have the money in the bank before I spend it. I certainly made mistakes along the way but you learn from those and TBH it won't be to everyones liking either way. Like many of us car people I tend to look after my cars better than myself!