Can't choose between 2 turbos

TT5.9mag said
The vsr6973 billet turbo (if that’s what you are considering) is a 900hp turbo. Plenty for your goals. The vsr billet next gen 7875 is 1000hp capable. Of the two you listed I’d use the 6973 on a 318. I would recommend using some of the online turbo sizing calculators to determine the mass flow of your engine and select a turbo to be in an efficiency range that is near 75% at the boost you want to run so it will live a long happy life. Garret has a great calculator online.

Choose a Turbo

Thanks for your thoughts.
I'm also looking at the Pulsar S372 journal bearing with a .91 twin scroll exh housing. It seems to sit in between the 7875 & 6973 so could be a good match.
What's your thoughts on this one?
Thinking I might bring the power goal back to 700fwhp Max so hopefully help it live a little longer. I'll also opt for a smaller cam to keep rpm Max at 6000rpm.

Thanks