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Re: Brainerd Quattro Club event report
- To: quattro <firstname.lastname@example.org>
- Subject: Re: Brainerd Quattro Club event report
- From: Dave Lawson <email@example.com>
- Date: Fri, 14 Oct 94 14:23:00 mdt
- Encoding: 109 TEXT
- Reply-To: quattro
- Sender: quattro-owner
>Yea I think some of the fastest speeds at Second creek were about 90mph
>Neds turbo lounge chair and the Rx7. My 4000q posted respectable times at
>Second Creek when compared to the TCQ's but that's attributable to the
>tightness of the course. Brainard is a different world.
The fastest I have seen at second creek in my TQC is around 85-90. As for
times, I remember you being pretty close to me Bruce. At Brainerd, I was in
the slower 3rd of the field. My fastest time was 2:25 and has much room for
improvement. Other times recorded are 2:15 for a 90 20V sedan, 2:09 for a
TQC with suspension and race tires and stock engine and 2:06 for some highly
modified TQCs. As usual, those last few seconds cost big $$$. Can't remember
what the sport quattros were turning.
>> - I met two owners of turbcharged 4000 quattros, one performed the
>>conversion himself, the other was imported from Germany and was converted
>More on these please?
On fellow has turbo charged his 84 4000 quattro. He says that the car has
been constantly evolving since he bought it in 84. He went the turbo route
with parts from an 81 5000 turbo. He bought the entire car for parts and
swapped what he needed to make it work. He was using the stock CIS from the
4000 along with the stock compression ratio. He didn't put on the turbo
computer.( Not sure how the engine management on these early cars worked).
He did install a popoff valve on the intake manifold to regulate boost. At
some point he burned up a piston, due to using the high CR and running 14psi
of boost pressure. So he went and re-engineered his design and rebuilt the
engine. I can't remember exactly what state it is in now, but it is a real
screamer. He is one of the fellows who organized the quattro club event at
Portland last year. I guess he had the car there and it was pretty quick.
The other fellow says that there is one in his family and his sister drives
it. It is an 86 90(4000) quattro which they imported from germany. He said
the conversion was done at the factory. This car is somewhere around Ohio or
>> - I had a very long discussion with Ned Ritchey of Intended Acceleration
>>one of the topics was Superchips. If anyone is interested, I can post some
>>of Neds thoughts.
On saturday evening, a whole group of up went down to the local kart track
and had a few run groups of Winston Cup go-karts. As Ned always seemed to
end up with the slow kart, people were wondering if he would tweak the
governer to get some advantage. After this fun(we ran go-karts for 1.5
hours), we proceeded to a local watering hole where I got to sit and talk
with Ned and his daughter.
He mentioned that he heard about the superchips thread on the mail list and
wondered what I knew. I told him what had been posted and that I thought
Peter Wales was walking a pretty fine line. As the net has noted, Ned said
the same thing, that there is no real wording in the advertisements which
says that they modifiy the computers with a replacement PROM. It only says
that you will have a performance improvement over the stock configuration.
Ned highly respects Peter Wales who runs superchips. He said he has gone and
toured their facility in Florida and sat down and talked with Peter at
length. Peter has built a large engineering facility and is really going
after the US market with 'automotive computer perfromance enhancements'.
When Ned was there, he saw some brand new ford on the dyno test stand where
they were working on remapping the computer. Ned said that Peter and company
were one of the first to break the new ford code and is able to work with
it. Superchips is really going after the performance market where there are
hundreds of thousands of potential sales.
Ned said that Peter has some computer program which he developed which takes
any PROM code file and within minutes returns where each data table is, what
data is contained in the table, where the code is, etc. I asked him if this
one program could disassemble any machine code from any one of the hundereds
of processors out there, but he didn't think it went that far. Ned also said
that the new car ECUs have the individual VIN for each car embedded into the
PROM and that if you go about replacing PROMs as they have done in the older
cars, the new ones won't work. Ned said that Peter has figured out how to
replace a PROM in this type of ECU. This new PROM with the VIN inside it is
supposed to cut down on the aftermarket PROMs and you screwed up you
computer, you would need to co get a replacement from the factory as only
they are supposed to know how to program these new PROMs.
We also talked about the Onboard Diagnostic specs that the EPA is requiring
and how this will affect performance tuning of cars. Ned also showed me his
portable diagnostic computer which is used to hook up to the later VW/Audi
cars through some connector on the ECU. He started up his car with the box
connected and it showed the part number of the computer, the country of
origin for his PROM, and the current data from the engine, numbers like RPM,
boost pressure, ign timing, coolant temp, etc. This box also allows you to
see the errors which have occurred and have been stored in memory. Pretty
I had told Ned what I have been attempting to do with the PROM in my TQC.
That I have downloaded the code and wrote a disassembler to look at the
assembly language. He said he has seen a few PROMs where someone else has
done this, and then reprogrammed the PROM such that everything was in
different locations. When he learned that I had a chip carrier in my ECU he
offered to install his PROM emulator an 'adjust' the code from stock. He
said that he can just change 2 locations in the PROM and there will be an
amazing difference. I had to decline his offer at this time, but would
definately take him up on it in the future. Ned is truely an intelligent man
and filled with great performance information about Audis.
Dave Lawson firstname.lastname@example.org