I have twin 76 Chinese GT45’s. I’m thinking of going to twin 67’s with .81ar for quicker spool. Any thoughts or advice on this. 76’s spool slow for me.
Are you sure they’re 76mm turbos? They look like the standard Chinese GT45’s which are a 69mm. I’d be impressed/confused if you’re spooling twin 76’s at all in your relatively limited rpm range.
What cylinder heads?
A lot of the LS guys in your same displacement range have found twin GT35’s to provide plenty of power and fast spool. They would certainly support your power goals.
