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Originally Posted by justaddwater
alright we did a cold air intake and a trubo back one the sti. much more power! this week our boost controller should be in. so we're going to allow three to six lbs of boost through gears.
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Without tuning, any intake that gives you power does so by fooling the MAF with the impoproper diameter. If you are seeing power from an intake, it's definately at the expense of your engine. You're essentially fooling the ECU into running dangerously lean AFR's.
As I understand it, the main problem with boost controllers is that, at partial throttle, they increase boost without adding fuel...again, dangerously lean AFR's.
Some people are able to run boost controllers at the drag strip without having problems because they're only using full throttle, but it's never really safe.