67Firebird455

iTrader: (27)

I switched from a boxed S475 T6 1.32 to this BL375R after a friend sold it to me for a hell of a deal. It's got an '83mm' T4 turbine, on a 1.10 AR housing. What would you guys honestly say the limitation will be on a 4.8 with this particular unit?

I believe it was Foose that ran one of these with a race cover on his truck, but other than that, not much info/data about it, and the lack of compressor map has me concerned. A friend ran this on the dyno on a 2jz at 33psi, they were shooting for 45psi but apparently it was all out of steam at just over 1000hp and backpressure was up at 3:1.

What do you guys think?

alocker

iTrader: (10)

I know nothing about that comp wheel but is seems 1000 RWHP is where the T4 starts to choke.