Somebody make me smarter as I havent read up much on the JWt's potential. How much can power can the larger turbo's in the JWT TT kit make (700whp?) what psi do they become inefficient at?? Weird to see people doing that upgrade and not another kit as JWT is known for that very fast spool...but hey I understand everybody wants big power.

 

As far as I have been told, we have yet to test this theory cause everyone wants to upgrade, the BB530 series turbos are peak efficient at 15psi ~ 510 rwhp. The BB700's are making ~ 740 rwhp at 25psi and are a GT28 series instead of the "stock" GT25's that the JWT kit comes with. The 700's essentially spool the same, thus keeping the feel of the JWT TT the same. By adding the larger turbos people have made some serious power. But I still think stock 530's at 15 psi is the way to go....for now anyway.

 

IC-thanks for clearing that up for me, nice to know the potential competition...