Roush rated their 2012 Sema car....at 700 crank hp. It used an 11:1 CR Aluminator eng + TVS-2300 PD blower. (notice Roush didn't use the 9.5:1 CR version of the Aluminator).
A lot of folks are getting 580-600 rwhp from 11:1 CR coyote engs..and 10 psi boost from a PD blower...and 93 pump gas.
More CR means less boost required = less hp to drive the blower. Also means less heat (pre-IC).
You also have to consider how often the blower is actually being used. If blower is only being used 10% of the time..and 90 % NA mode.... you are better off with higher CR. The eng will make more hp with higher CR in NA mode.
For folks with E85 available, you are in for a treat. E85 is typ 105-107 octane, so you have race gas in there all the time. One of the fellows on the Roush Forum used the SAME 91 tune...and just switched fuel from 91 gas to E85. 50 more hp. Then he advanced the timing a whole bunch..and picked up another 53 hp.
