olddragger

iTrader: (3)

good info and opens up a new way of doing things.
It is a good heatsink and hanger for a secondary radiator
OD

mike[piston eater]

iTrader: (3)

im gonna chime in one problem with oiled filters like k&n is the oil is what traps the particles, and the filtering isnt as efficient, acoording to my automotive teacher afilter such as k&n could cause a term called "dusting" or basically little particles not being stopped by the filter and scratching the cylinder wall and losing compression, i have no clue what it would do to a rotary, but just some cool knowlege i thought id pass along

AJ's Shinka

So what your sayin iz... my K&N is holy?

mike[piston eater]

iTrader: (3)

lol well they let more microns through than desired if not properly oiled, they do have better airflow, just throwing out info

AJ's Shinka

Got it, must buy more oil.

mike[piston eater]

iTrader: (3)

and just a word of advice for people who live in extremly dusty places like desserts and such, but then there is a thing as too much oil lol

always.anthony

why have it bend and go lower?

best imo would exit engine bay and stop right there. no need to curve down get closer to ground and pick up more dirt/dust if thats the issue. straight path good flow too.

TeamRX8

iTrader: (25)

It's not just diameter but also length. Ideally you minimize any and all flow restrictions. If possible I'd mount this on the inlet

http://www.vibrantperformance.com/pressrelease23.php

and with it's 6" OD for your 3" inlet would want to maintain that as far as possible. Our 3.5" MAF housing requires it to neck down at some point, but I'd still want to maintain that size or larger ahead of it.

And yes, I have one of those mounted at the throttle body of my NA. The length/spacing didn't pan out like I wanted so it could change once data can be generated with it. It will be different than anything ever seen on an RX-8 for sure. Unfortunately a rules clarification prevents me from removing the plastic cover under the VFAD that blocks the opening behind the crash bumper support.

You guys without rules can cut a curved notch on the backside of that support to allow a large diameter tube to pass through and then weld in a rolled piece and other reinforcement so it still provides head-on protection. Or if you're willing to risk it remove it entirely.

Mawnee

The filter was too big to fit like that. That was my initial intent Thats why I have it on a bend too..it has to be angled out from under the beam then away from the intercooler. This is for V1 of my turbo kit. If my new BOV ever shows up I think I'm going to have a go at blow through maf and redo all that piping

jskup1

iTrader: (7)

OD, are you still using Pettit's MAF pipe? Which AEM filter did you get?

olddragger

iTrader: (3)

yea--didnt change the maf pipe--just added a silicone connector to it and a short piece of 3.5 aluminum pipe. then a reducer to the aem filter as the filter inlet was only 3". This doesnt hurt anything. Its a round type and about 6" long. End result it butts right up against the oem hole.
Now i have enlarged that hole a long time ago. I also have a custom made the front support bar cover that helps to get air to that position. I also cut the front bumper at the mazda embelm position leaving no material behind it. That didnt help as much as i had wished.
So far this is working for me---moving the filter just a little closer to the opening made a significant difference. I also made sure the space between the oem air box bottom plate and the radiator was sealed and i did insulate that plate from radiator heat.
SO on a 58F day the bottom part of my filter was running 61-62F on the road. Stopped at a redlight etc and it does heat soak pretty fast but recovers quickly also.
i am more limited than some others as i cant find a big enough air filter (i need at least 40lbs per minute of flow) to fit between the front bar and the front clip and i have the a/w coolers and a secondary radiator hanging down in the area that the mazdaspeed and aem intakes go.
SO---this summer i hope this set up stays like this--if it doesnt maybe i will do the vesio(?) air scoop.
besides i really dont like all the bends in the aem etc intake design.
Guys sounds like some are mixing difference sizes of pipe in their intakes---thats not the best way right? If you have too isnt it best to do it on one end or the other--not in the middle?
OD

always.anthony

depends, theres a lot of physics that goes into that.

of course pressure and velocity will multiply the affect.

olddragger

iTrader: (3)

physics will help delay my alzheimers ....dizzy
OD