I'm doing a mock up of my engine and Dyno2003 needs to know TPI cfm flow @ 1.50 inHg.

I've got a TPIS 52mm TB, Air Foil, stock plenum, SLP runners, and an Accel base. All of them are port matched to each other perfectly.

What would you guess it would flow?

Thanks!

 

I'll take a wild guess and say 225 CFM. I have seen where the stock ACCEL base flows 251 CFM. The ACCEl cast LTR flow at 242 CFM and I believe the SLP may be slighly less. So all bolted together with the stock plenum is my guess of 225 CFM.
Allen

 

Umm, no, the induction flow they're looking for is at the throttle body, not the intake manifold. Guess around 850-900 cfm with the 52 MM throttle body. (though your intake tract before the TB could lower that)

 

Thanks!

The default value Dyno2003 put in there was 300 so I kinda thought
1989GTATransAm wasn't too far off there but it makes since that they would want the TB air flow, just like a carb cfm air flow you know. I put in 850 and the power curve looks a little more "realistic" now...

 

48 mm - 630 CFM.

52 mm - 750 CFM.