Does anyone know the max boost u get from stock GTR32 turbos?

[femno]

Im rebuilding a 32 GTR engine and contemplating building for big boost. Does anyone know how much boost u can get from the stock turbos if they were hi-flowed?

[Cubes]

Boost is not your friend.

Airflow is, use the search button.

[liber8_d]

Ask your turbo machinist.

For stock stockers people say no more than about 1 BAR, 14.7PSI i believe.

As Cubes says( or implies), turbo boost pressure is only a measure of how much of a restriction your engine is to the turbo'd air. Power is related to compresser speed/flow more than actual boost pressure. So if you prepare your new setup correctly(heads+cams etc), you don't really need huge boost, just look at rotaries.

Do some searches on a few different topics, or try to talk to talk to someone in the know.

[femno]

Thanks guys

[PHATGTR]

High flowed turbos will comfortably run about 1.3 bar