Originally Posted by msheredy
Someone correct me if I am wrong but I believe turbo surge is when the turbo is creating more airflow than the engine can take in. If anything the supercharger might be starving for air, but I wouldn't suspect that either
you are correct. I see no problem with the setup. In the diesel world we are using large turbos that we could not normally run as a single and compounded with another smaller turbo would be laggy. we have started using superchargers to add drive pressure at idle and are able to make huge power increases far down on the powerband.
This is a proven setup and i expect to see good results once tunning is complete, as for the amount of boost, me personally i would run 8-12psi from the turbo, this compounded setup should see high 400's to the ground with enough fuel.