i was wondering which turbo is bigger... i have a t3/t4 ar63 .57 trim and was wondering what size is the t3/t67 that full-race sells and whats the limit on these turbos... i know the one that i have is around 500hp... also just to double check will the t3/t67 bolt on to my t3/t4 manifold?

 

also at what rpm will it get full boost by....

 

Yes it will bolt-on to a t3 flanged manifold. It is much bigger than your turbo. This turbo has already make 600+ at the wheels. Cannot tell you when the turbo would spool without a complete rundown of your set-up.

 

a ls vtec with a 81.5mm bore... what kind of specs range is the t3/t67 at?? is the compressor side bigger and the exhaust side the same size or so?