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Originally Posted by rubberbiscuitt
oh and about the tempature, i can vouch for the external filter temp decrease. after a soft drive before fabrication the filter was warm to touch. after a spirited drive, after shield fab, filter feels like cold. no scientific temp reading taken, but it should be signifigant.
when the turbo heats up air, it will heat the air coming in. therefore if air is 10* cooler should be approx 10* coming out. theory fucked up? i dont know shit? i don't know. i do know that i'm late for work.
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True, if the air into the turbo is colder, the air comming out will also be colder than it might be otherwise. However, your car is intercooled. If the intercooler is properly setup and not heat soaked, it should cool the intake charge to near ambient even if the intake is warm.
For example:
intake -> 100* -> turbo -> 200* -> intercooler -> 80* -> manifold
cold air intake -> 70* -> turbo -> 170* -> intercooler -> 80* -> manifold
See what I mean?