Compressor blade RPM = ?psi

sen2two · 05-02-2012, 03:54 PM

I'm trying to choose a compressor blade and housing for my supercharger project. I am making my own supercharger from the front half of a turbo. I'm trying to get my gearing down to get 10psi at my desired RPM.

I cannot find any formulas on how much pressure a turbo will create at given turbine revolutions. Yes, i know there are many factors in this... But if someone can point me in the right direction, that would be great.

RICE RACING · 05-02-2012, 04:32 PM

Its pretty easy, I am one of the FEW people who actually measure this in my own car

There is a direct relationship to compressor speed and psi delivered, you will find this info on a compressor map of the (half turbo) you are deciding to run. what speed you spin the compressor at will directly relate to the boost you will get

But you need to find a compressor map of the unit you are wanting to convert.

If you look at my threads featuring VBOX logs of my car you will see printed in the report tables compressor speed for various boost levels

05-02-2012, 03:54 PM	#1
sen2two KTEC Join Date: Jan 2009 iTrader: (2) Posts: 642 Rep Power: 0	Compressor blade RPM = ?psi I'm trying to choose a compressor blade and housing for my supercharger project. I am making my own supercharger from the front half of a turbo. I'm trying to get my gearing down to get 10psi at my desired RPM. I cannot find any formulas on how much pressure a turbo will create at given turbine revolutions. Yes, i know there are many factors in this... But if someone can point me in the right direction, that would be great. __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

05-02-2012, 04:32 PM	#2
RICE RACING Don Mega Join Date: Dec 2008 Location: Utopia iTrader: (0) Posts: 1,688 Rep Power: 17	Its pretty easy, I am one of the FEW people who actually measure this in my own car There is a direct relationship to compressor speed and psi delivered, you will find this info on a compressor map of the (half turbo) you are deciding to run. what speed you spin the compressor at will directly relate to the boost you will get But you need to find a compressor map of the unit you are wanting to convert. If you look at my threads featuring VBOX logs of my car you will see printed in the report tables compressor speed for various boost levels __________________ www.riceracing.com.au Worlds best Apex Seals Coil on Plug Water Injection ECU Calibration