stock TPI manifold flow for turbo setup

[mobythevan]

I see numbers on the net like 200cfm for the flow of a stock TPI manifold runner. Does anyone have experience with what stock TPI will flow. I am curious what the upper limits are if this is used on a turbo setup.

[Pyro]

That is a good question.

 

I would think that the intake would flow much more when force feed as compared to vacuum feed.

 

I bet the formula to estimate power added from boost over normally aspirated would apply.

 

((boost +14.7)/14.7)= force induction muliplier.

 

So at 8 psi of boost.....

(8+14.7)/14.7) = 1.5442

 

then 1.5442 x 200cfm = 309 cfm.

 

Just a guess but it sounds resonable.