There is a Turbo Type R here in Lakeland. I ran against him about a month or so ago in the 1/8 (Lakeland). He was running street tires and ran a 9.1 to my 9.0. I heard him spinning the whole way down the track so I know it could be faster.
Just putting a turbo on one doesnt make it fast...it takes good tuning the get the car running right!