Re: Dual Exhaust

From: Matt Tharp (henryrollins2001@yahoo.com)
Date: Thu Mar 27 2003 - 23:49:32 EST


 This is someting I got a long time ago. I used it to
figure out the size needed on a diesel truck but it
should work the same here

Exhaust Flow CFM = ( (EGT + 460) / 540 ) x Intake CFM

To figure out Intake CFM

Intake Airflow CFM= (Engine CIDx RPM)/3456) Volumetric
Efficiency x Pressure Ratio

Then for pressure ratio
Pressure ratio= (Atomoshere presure x Boost Pressure)/
Atomoshere pressure
So if you do not have any boost you would put 0

There is alot you can figure out with math. I am not
sure if this answers your questions but it might help.

Well I got it get back to my homework

Thanks for the break
Matt Tharp

=====
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