Cold Air Intake Question
11-19-08, 06:50 PM
#3
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Yes, if the cars are the same series (86-88 or 89-92). However, if the NA filter is very small, and the turbo engine is modified for a lot of power, then the NA filter may restrict the airflow more than it should.
11-19-08, 08:02 PM
#4
feel the beat
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Okay, is there some sort of rating on the intake that would let me know if my turbo engine is suitable for it?
11-19-08, 11:29 PM
#5
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For K&N brand filters, I derived the stupid Evil Aviator K&N filter rule of thumb, which hopefully isn't any more stupid than the other stupid internet guidelines:
Horsepower Potential = Filter Media Area square inches * 4.53
If you have a filter that is 'too large', there will be no significant ill effects, and the filter will last longer between changes or cleaning.
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