Quote:
Originally Posted by cgr406
So recently my car has been feeling a bit sluggish and i noticed that my max boost readings were only about 4.5 lbs (down from about 7.7 right after system install). So I either was experiencing belt slip, had a boost leak or my filter was clogged. I really didn't want to remove the blower, so I cut the filter in half around it's circumference & pulled it out. Wow, super clogged, as you can see below (after only about 6 months of use). I then built a "turbo-guard" type of inlet screen out of 5/64" opening stainless (very strong) screen that I sourced from Summit. Now, i'm not sure how long I'm going to run w/ this setup b/c although it will certainly stop the large stuff from getting in, lots of smaller dirt will flow right through. But wow, what an improvement. I went for a quick test drive & was seeing between 9.5 & 10lbs of boost during 2nd gear pulls. Needless to say, the car feels waaay stronger.
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I like how you just cut the K&N filter! Haha. That's something I'd probably do next time if I know I'm going to replace it with something else that does not require me to take out the blower.
What's your pulley setup?
I'm experiencing really low boost myself (7 PSI average) and that's with serpentine belt slip & a really clogged up K&N air filter + busted up at that to make things worse (it looks almost like a cup).
Without an air filter you should be running close to 11 - 13 PSI depending on what your pulley set up is.
If you're only pulling in 9.5 - 10psi then there is still something wrong with the boost you have (because I have similar problems, just may not be exact same as you).