civickid03

i am trying to choose a proper A/R ratio for my turbo setup - How can I determine the turbine inlet pressure, is there a mathematical formula? What values am I measuring?

SOHC_MShue

you would need a pressure probe in your turbo manifold.

civickid03

is there any way to estimate?

tony1

Not really. What is your setup? I may have some data from something similar.

TunerToys

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">Not really.</TD></TR></TABLE>

There is a section in the Maximum Boost book about the importance of turbine inlet pressure, and Corky says pretty much the same thing, you have to measure it. He states that high pressure equals faster spool and lower top end, while lower pressure is the opposite. I know that seems obvious to some folks here, but Corky's summation pretty much stated that at that point, you're back to trial and error to get it just right.

Craig

SOHC_MShue

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civickid03 &raquo;</TD></TR><TR><TD CLASS="quote">is there any way to estimate?</TD></TR></TABLE>
there are way too many variables that go into it to estimate.

civickid03

thanks guys!!