Author: The Ace
Subject: K & N filter or not
Posted: 26 Jun 2018 at 12:42pm
When installing any aftermarket component in the intake, you always run the risk of disturbing flow/creating turbulences, if you alter (especially when you shorten) the distance between inlet and the MAF. However, this happens only with complete intake kits, when it comes to installing plain panel or cone filters, the worst I've seen is oil getting on and contaminating the MAF, because the owner didn't know how to properly clean and reoil the filter.
Edited by The Ace - 6 hours 57 minutes ago at 1:03pm
Subject: K & N filter or not
Posted: 26 Jun 2018 at 12:42pm
When installing any aftermarket component in the intake, you always run the risk of disturbing flow/creating turbulences, if you alter (especially when you shorten) the distance between inlet and the MAF. However, this happens only with complete intake kits, when it comes to installing plain panel or cone filters, the worst I've seen is oil getting on and contaminating the MAF, because the owner didn't know how to properly clean and reoil the filter.
Come to think of it, I do remember RacingBeat's REVi intake for the RX8 absolultely needing the two mesh-grills/air straighteners that the stock intake had, since the ECU threw up a CEL if you installed the REVi without these grills (which didn't happen if you removed the grills from the stock intake). Same thing happened with the Corksport intake on the CX7, which needed -and came with- its own air straightener, since the air inlet was just a couple centimeters away from the MAF.
Since I've mentioned the RX8 and the CX7, these are two of the cars which I have dyno-ed before and after installing a complete intake: the RX8 showed a rather paltry 4HP increase (went from 190 stock to 194 with the REVi), while the CX7 showed a more healthy 14HP (went from 246 stock to 260 with the Corksport intake). Well, none of these intakes used an actual K&N filter but different brands of aftermarket filters, but you see what I mean ![Smile]( "Smile")
Edited by The Ace - 6 hours 57 minutes ago at 1:03pm