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Mobil 1, IA Stg III
Item Subject: cc:Mail Text
Installed Ned Ritchie's Stage III upgraded computer into my 91 200 TQW
today, warmed up the oil, and then blasted around the country roads
Someone on the list (in the "Replace 20VTQ Motronic with S4 Motronic
thread) said Ned's computer upgrade for the 20V TQ could be described
as giving the equivalent of S4 overboost without the 15 second limit.
My impressions definitely concur. The power boost is significant, but
not awesome, still impressive considering no hardware was modified or
installed. Scary power would require at least a better exhaust
manifold and turbo swap, as Ned suggests. This is as hard as he wants
to push the stock engine and maintain all the -abilities.
Turbo lag is now almost gone, more low-end grunt, fourth gear is a
screamer. Not yet used to the new throttle feel, it is hard to drive
under 50 MPH. Unexpected is that the engine sounds are "different,"
even at idle--more regular and alert. Don't ask me to substantiate
this, more like saying one stereo has crisper sound than another.
My boost guage still goes only to 1.7 bar--had hoped to exercise its
full potential capacity, which I thought was 2.0 (says so in the
owner's guide). Noticed it reading only 1.4 and 1.5 when accelerating
at full throttle through second and third, although the pressure
against the back of the seat was more than pre-Ned tune, of course. I
had thought it would be pinned against its max, given that the Stage
III upgrade makes a claimed 2.5 bar. So I have to corraborate that its
accuracy is questionable.
BTW, I for one would like to see a repost of Ed Hackett's discourse on
oil, if you will, Grant.
Fort Collins CO
91 200 TQW
87 VW QSW
64 VW Ghia Convert. (soon to be an EV)