turbine maps

[87targa]

how do you read turbine maps?? how do you get the pressure ratio off the exhaust manifold??

thanks

[Doward]

What do you mean? Pressure ratio is pretty much the same thing it is in the intake side - it's how much pressure is present in the exhaust manifold (coming into the turbine)

[87targa]

ok so reading the turbine maps is about the same as the compressor is that right? do i just guess what the pressure is in my manifold?? would i have to hook up a back pressure tester to see the pressure?

I know how to read compressor maps but turbine maps are something i have never really learned. would i plot on the turbine map like how one would plot on a compressor map?

thanks