As an Ecoboost owner (3.5 V6 twin turbo, Lincoln MKT) I can personally attest to their sheer power in pure stock form. I know nobody was really watching during our last Turbo Buick/Gbody nats in N.C. but I had a little shootout with the two F150's that were there, and managed to squeek out a victory over both.
One was a two wheel drive (XRay's truck) which I took down quite handilly because of his traction disadvantage. The other, a 4 wheel drive of Paul Ferry's was a tough!!! competition!!!! We were only separated by a few hundreths at the line but I did get the best two out of three on that one.
Running 9.3's all day!! Not sure what 9.3 would equate to in the quarter, but it was fun!!!! With my AWD I was able to launch on the foot brake at WOT (which was only 2#'s of boost). During the run in stock form it pushes on average about 10# of boost. All that with 10.5:1 CR, and on 87 octane gas!! I think with 93 octane and had I remembered to turn traction control off, I might have been able to do better.
I thought 9.3's were pretty good for my 5,000# Lincoln with a little V6 in pure stock trim!!!
These little twin turbo V6's are a hoot, and I already know a couple Ford Flex owners that are in the 12.10's and shooting for 11's on a razor's alky kit and a tune.