RE: Performance Variance

["Crane, Damien" <d3c@TENNANTCO.com>]

I have something for you to try.  Next time you are feeling that it is
down on power -- and have a minute -- stop, turn the engine off, and
unplug the main computer connection.  Then plug it back in, start up and
see if it feels better.

Logic behind aforementioned ridiculous idea:
According to 'my' mechanic who has a _lot_ of vw racing and tuning
experience, the computers are fairly sophisticated for their time and
they actually learn.  This is not a problem if you putter around like a
grandmother all day, but if you beat on your car a lot (and who
doesn't?) the computer learns that this is normal behavior and changes
its mapping to give maintain a margin for safety.  He tells us that we
should do this several times during a rally because during the course of
the racing, it sees too much time at the edge of the spark acceptability
curve and backs off.  Which backs the power off.  Personally, I don't
know if this is noticeable or even reasonable, by my man swears by it
and he seems to know his VW shit.  (VW and Audi is all he does, and he
has gotten a lot of power from our 1.8 8v)

Let me know if this makes a difference

Damien

> ----------
> From: 	NICHOLAS ISAAC[SMTP:nisaac@home.com]
> Sent: 	Tuesday, August 18, 1998 3:53 PM
> To: 	Shawn C Meze
> Cc: 	John.Ryland@mail.sscoop.com; scirocco-l@privateI.com
> Subject: 	Performance Variance
> 
> I own an 87 16v Scirocco, and am having a disturbing problem with it
> (only one however). I seem to have quite large performance variances.
> For a week after I got my car back from the mechanics for minor
> exhaust
> repair, I noticed that my car seemed to have A LOT more power... i.e.
> I
> tap first and I burn up the road. Then after a while (a week), my
> power
> seemed a little tamer. I am thinking, maybe it is because at it's
> current setup, my 250w amp is constantly, though slowly draining the
> battery (it was disconnected at the mechanics) or perhaps I had been
> with out my car for so long I forgot how it felt to be behind a fast
> german car. I can't exactly take it to the mechanic and say "I think
> it's less powerfull, find out what it is", as this will make me
> without
> my car for a while, cost me a lot, and they probably won't know what
> it
> is either. Please help.
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