Well, I just ordered the Rotrex for this install

. I'll post some charts as well as my analysis shortly. The really cool thing about the C38 is when you compare it to the stock blower on the SRT.
I ran the numbers last night in another post and the stock blower looks like it is running down near 59% efficiency at 20psi. This Head unit looks to be in the 74 - 76% range at the same cfm.
I still have a rotrex and a turbo install ahead of my car. However, I do hope to wire my piggy back of choice up and confirm that it is going to work.
Once I have the bugs worked out while everything is still "simple", I can then fab up the bracket to install the Rotrex, mount the IC and HE, and then close the loop to the TB.
I plan on running an 80mm pulley and closing the SC inlet off to limit top end boost with a restrictor.
This is going to get very interesting in the near future!