| Message: | | using the late style e30 plastic airbox with the horn in the top seems to help too. Dont remove the horn. It serves a few purposes. First, it smoothes out and speeds up the unmetered intake charge before it hits the flapper. That makes the AFM meter the air more accurately. Secondly, it makes better use of the whole air filter area so the whole filter gets dirty without just soiling the material directly between the inlet and AFM port. I noticed a bigger difference from swapping in the 325i plastic airbox than I did from a performance chip or the 3.73 diff. The hole in the bottom of the filter casing is a lot larger than the stamped steel eta one as well. I imagine BMW did that for a reason. And if the 325i needs those revisions, a 2.7i would benefit from them too. All of this only applies to earlier eta models, pre 1986 I believe, with the stamped steel airbox. If you have a plastic one and the horn is in place, youre set.
| |
© 1997 -
2008
Jump Internet Inc. All rights reserved.
