Quote:
|
Originally Posted by A1337STI
OH
yes an IC efficiency is rated by how much heat is reduced in comparison to the ambient air. so if its 80 out at Stead and your turbo adds 100 F with a 95% rate you get this .
air 80 -> Turbo 180 -> [95%] IC -> 85
|
Okay let's use that math:
ambient = 70* -> hot intake -> 100* -> turbo -> 200* -> 95% IC -> 76.5* -> manifold
vs.
ambient = 70* -> CAI -> 75* -> turbo -> 175* -> 95% IC -> 75.25* -> manifold
Looks like a CAI that reduces intake temps by 25* over a hot intake on a 70* day reduce intake manifold temps by 1.25*. Assuming the 100* we're picking for heat added by the turbo is realistic, but even if that number changes, the overall result still remains true: due to the intercooler, a CAI has only a very small change in actual intake manifold temps.