PSI D blower displacement/ output

Hi everyone,
Does anyone know what the displacement/ output of the PSI D blower is in cubic inches per revolution? I have called and e-mailed PSI several times for this information and as yet I have had no reply.

Thanks.

 

Psi Info

Contact Lonnie Hoode He Knows This Info 508-776-4898

 

Thanks for that, but I am not in the U.S., does he have an e-mail?

 

I don't think the new PSI owners realize that they have email service.

 

Psi D

Norm Drazy once told me the -d model is positive displacement air pump and moves 422 ci/revolution.
wayne

 

I was told by PSI many years ago the first model 200's moved 375 cubic inches per revolution. Then when they redesigned the case for the letter models A-D it was 425 cubic inches per revolution. But I was also told that the D model at higher RPM has a supercharging affect and actually puts out more air per revolution than its volume. Don't think I am crazy, that is what Norm told me.

 

PSI -D air volume

The 422 ci/rev I spoke of is at standard conditions, 60 deg and atmospheric pressure.

Wayne

 

The supercharging effect I am talking about was on a test stand as I recall, and not on a car at speed. This all happened when they opened up the area in front of the rotors to let the blower breathe better.

 

At 24000 Rotor Speed The Blower Becomes 110% Efficient: Explained To Me By Norm Drazy As A Ram Effect. When You Take Off From A Dead Stop In Your Boat, Prop Still Moves Water And Pushes Boat, But Up At Speed, The Prop Is Actually More Efficient And That's Why The Pitch Changes From The Hub To The Tips. You Develope A Cone Of Air Around The Bullet And Prop Only Grabs On The Remaining H2o. Once Air Is Flowing Through The Rotors, Not As Much Air Can Leak Backwards Through The .003 Clearances Because The Time Factor To Do So Is Greatly Reduced. In Addition, Air Ram/tunneling Effect Comes Into Play To Increase Efficiency. Air Flow In A Tunnel Ram Manifold Isn't Squat At Lower Rpm's. Once It Gets Moving/stays In Motion You Make Intake Charge For The Engine. If You Have Norm Explain It To You, Get Two Hours To Listen. He Lost Me More Than Once And Had To Go Back And Get Me, To Tweak My Weak Little Mind.

 

It's 422 ci per rev.