CFM Questions

[Ken Kelly]

Dave,
	Flow is measured for a given pressure drop across the
runner. I really can't imagine that this means a 600cfm flow
with a 15 psi pressure drop. Who would ever spec a runner
with that much drop. What is the pressure differential that
creates a 600cfm flow through the tube. Then can you live
with that much pressure drop?

		Ken

David Sagers wrote:
> 
> Anyone know how to calculate CFM rates?  I was talking to the shop that's
> building the turbo set up for my chevy engine.  He said that at 15 lbs of
> boost each runner on a stock TPI will flow 600 cfm.  I think the stock
> runners are 1.25"  But 600 cfm sounds really high for such a small tube,
> even at 15 lbs of boost.
> 
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