Peter,

I don't have the total story on the HT motor in the Scirocco, but from what I understand, it was only available in some of the very last of the '88 Scirocco 8v's that were built before the Scirocco model was discontinued and replaced by the G60 Corrado.

What I'm not sure of, is what the CR of the HT motor was, as delivered. I've heard that it was 10:1 and that it was 8.5:1. The only thing I'm sure of is that it was a hydraulic lifter motor w/ the 40mm/33mm valves.

For some reason, Denver can't seem to get its act together w/ the VW's in IT. The list the '85-'89 Golf 8v as a 10:1 CR, for all models (GL/GT/GTI) and let them run 13" or 14" wheels, yet they list the Jettas from the same period (all models, GL/GLI) as an 8.5:1 CR, and list only 14" wheels. The GLI was the only one that came w/ the 14" wheels, and it was a 10:1 CR motor (same as the Golf GTI 8v).

They also list Scirocco II ('81-'84) w/ a 1.7 liter motor at 2110# (same as the Scirocco I w/ the 1.7), yet the list the Scirocco 8v ('83-'88) w/ the 1.8 liter motor at 2270#. Point is, there were no '84 Scirocco w/ the 1.7 motor, and how did the car gain 160# just from a 100cc displacement increase? They did the same thing for the Rabbits w/ the 1.7 in ITB ('81-'84) at 2050# yet make the '83-'84 Rabbit GTI w/ the 1.8 weigh 2180#. And the '84 VW sales brochure for the Rabbits shows a range of ~50# (not including the Cabriolet), w/ the GTI being in the middle.

This is why there needs to be a well-defined, evenly-applied process for classing and spec'ing IT cars.

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MARRS #25 ITB Rabbit GTI