Originally Posted By DARTH V8R

So the ram air does work at bringing the PSI close to atmospheric pressure of 14.7, but will not cross that threshold until ground or airspeed reaches at least 230mph.

So myth confirmed to a point. My apologies, as I should have said ram air to create boost, as boost defined as 14.7psi +xx.



Sport440
{Why would ram air boost stop at 14.7???} Answer, It doesn't.

It increases from whatever the starting atmospheric pressure is currently at.



BUT, It WILL, still be Boost, A Increase in PSI with a Working Ram air Effect. ANY Increase is BOOST by definition.


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Sport440,
Okay Now you changed your original question,

From,...{ The Myth of ram air...does it WORK in cars/trucks}

TO;{{ Boost is defined as 14.7psi + xx}}


Ram air boost can start at any MPH from zero and increase from there. There have been formulas and charts posted to prove that.

It takes 70 millibars to achieve 1 psi of boost.

Ram air systems, for most of us will be below this level, but still capable of .50 psi around 150 MPH .25 psi around 100 MPH .125 around 80 MPH

So pick your MPH from any of the above for your {Boost is defined as 14.7psi + xx} and add that. 14.7 + .25/100 MPH = BOOST

Ram air is{ No myth}. CONFIRMED up



Last edited by Sport440; 04/10/16 04:41 AM.