Dyno tests have shown that my soul will do 300+ KW, at the wheels! Hehehehe, just kidding :s6:
Your car is impressive.
Have you dyno'ed your XR6'T'?
How much boost (psi) is your XR6'T' running now?
I have looked into getting a Turbo kit fitted to my EL... for about $8K there's this mob that will guarantee a 9 second car down the 1/4 mile, or your money back.
Another mob, have a similar thing, however the boost is limited to 5 psi.