They have turbo S54s, just with JE 9.0:1 pistons. They have the S54 over in Eurpoe ahwile, the control for the double vanos is still be explored by american companies, and most importantly, Jim C
www.boostlogic.com makes a kit for the car, as with ATP.
The compression isn't bad because you have to remember thats the advertised compression, not the dynamic. It's still high, but how do you think all them ford guys take so much abuse on 9.5 to 10:1 compression smile.gif .
Just wait until Jim hammers out the motronic ecu for the s54.