hello, i blew my T04R and want to upgrade to a turbo that will spool faster than 4500. grrr. i have a aggressive street port and im using a fmic. let me know your opinions on what my next turbo should be.. my choice right now is gt35r. my goals are 450 hp and boost by 3000 rpms. the t04r uses vband and t4 flange so im looking for direct replacement

Welcome to nopistons! Moved to single turbo section, you should get more answers there.

You're not going to get full boost by 3000rpms and 450rwhp without nitrous.



You should get a Gt35R-ish turbo, you will see 1 bar in the mid 3's rpm range and you can hit 450rwhp @ 18+psi with a ported engine.





Full boost of 4500rpms with a To4R is a very slow setup. You should run a bigger exhaust system, no cat, and a tubuluar manifold to aid in spool and overall power.