Originally Posted by oohogwash1

Here is another data point for you guys.
As you know high comp concept is not new, I chatted to the head engine man for Dick Johnson with his dominating group A sierras.
(Actually he still has the original engine lab they used, with all the cossy bits which is neat)
He said that they felt high compression was the way to go way back then but they never had enough time to research it fully, they worked with the Group A guidelines, and found extra power by other means which was interesting but off topic for this thread.

He went on to say that since that time (sierra group A) he did go down that path and works with high comp engines constantly and talked of the low comp spec as being very old school and something they left behind a long time ago. A lot of WRC work goes his way, which guys mentioned on this thread is high comp work.

His team did a lot of stuff that set them apart from sierras all over the world, I respect his opinion.