Some questions on STI ver 5 / 6 turbo and engine
 

Hi All,

I will shortly have delivered an STI ver 5/6 engine complete with turbo for my project.
A few quick questions.

1 what is the standard turbo IHI VF??
2 safe boost limits if I opted for a bigger turbo on standard STI internals.
3 injector size 440's or are they 550's

MY last engine had eagle rods, STI 9 Crank and CP pistons and running 399bhp / 382 ft lbs before it went pop.

The crank and rods are fine and I am saving them for my overall big power project.

The car has APS cold air induction, walbro competition fuel pump, ecutek remap, tubualr headers and a full decat system.

But want to know safe limits on this engine with standard STI internals.

Cheers

Daz

1 what is the standard turbo IHI VF?? It has a vf28 as standarad
2 safe boost limits if I opted for a bigger turbo on standard STI internals. probably about 1.5 bar but not sure someone will probably correct me
3 injector size 440's or are they 550's. 440's are standard

hope that helps

Yup, vf28 on the V5 and vf29 for the later v6s.