Mazda Rotary Club

Cars by Model Type => 2nd generation RX-7's => Topic started by: Skifledanabit on April 22, 2011, 02:07:50 PM

Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 02:07:50 PM
Done a search, got nothing, I have a cone filter just laying around, I\'m just wondering how you bypass the air flow meter under the stock air box, I\'m pretty sure it won\'t run properly without it... So how do you do it?
Title: EGi Cone filter install advice?
Post by: Prof on April 22, 2011, 02:15:28 PM
Don\'t bypass it, just run the cone on the fresh air side of the Air Flow Meter
Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 02:18:43 PM
The problem is, the filter is round, whereas the afm is rectangular...
Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 02:24:21 PM
Oh... An adaptor... Derpy derrrp... Is this even worth doing...?
Title: EGi Cone filter install advice?
Post by: m1tch on April 22, 2011, 02:46:03 PM
I think with EGIs its best to run a drop in panel filter, if running a cone filter its best to have a cold air feed to it so you don\'t suck in warm engine bay air, unless your have an RE-A filter like on my FC that basically takes up SOOOO much space and the rear of the filter acts like a divider :D
Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 02:58:06 PM
You got any pics of the setup m1tch?
Title: EGi Cone filter install advice?
Post by: B.Martin on April 22, 2011, 03:31:31 PM
Yeah don\'t use a cone mate ;)
Title: EGi Cone filter install advice?
Post by: Lacey on April 22, 2011, 04:06:32 PM
6 tonnes of stock plastic air intake is where it\'s at ;)
Title: EGi Cone filter install advice?
Post by: Lacey on April 22, 2011, 04:08:37 PM
Also, by the looks you have a T-II bonnet on your EGI same as I do, get good at fabricating and turn the top scoop into a filtered CAI :D
Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 04:50:04 PM
How would I go about doing that...?
Title: EGi Cone filter install advice?
Post by: Lacey on April 22, 2011, 04:53:22 PM
Well you currently have air flow (i\'m assuming) that directs air to your filter, what you should get is something similar to a TMIC that works as a CAI feed from the scoop, I\'m sure theres something on the market that would do the job!
Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 05:06:13 PM
So basically, run a pipe from a collector below the scoop to the front where the air intake is... Seems a bit of a false economy, you\'d just be directing cold air over the warm engine, I thought that was the case for FMIC over TMIC, I should think it would BR better to run a scoop from the ducting on the front of the bumper into the air intake area...

But then again, that would be pretty pointless with the stock boxes seeing as there is already a cold air feed there, unless you feed it into the existing plastic...
Title: EGi Cone filter install advice?
Post by: Lacey on April 22, 2011, 05:19:15 PM
What I meant was do some fabrication work so you make something that sits in the recess of the scoop and connects to a filtered air feed, so the air going into it is all pulled in from the scoop and outside and not over the top of the engine. Like the old Challenger Hemi\'s do where the bonnet has a hole and the air intake sits proud, but have something similar fitted into the scoop, so when you shut the bonnet, the custom intake sits perfectly inside the scoop and cuts off as little hot engine air as possible.
Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 05:21:45 PM
I think I see what you mean... Almost like running carbs, so there is the filter sitting in the recess of the scoop with a tube running almost directly into the UIM?
Title: EGi Cone filter install advice?
Post by: Lacey on April 22, 2011, 05:27:32 PM
Pretty much! Like the RE-A kits do where they have a surround that cuts off as much hot air as possible from the engine, you\'re looking to make a similar blanking plate that fits the inside of the bonnet on the bottom that the air filter or intake sits on top of, so all the cold air pulled in whilst driving and stand still is taken directly from outside of the scoop, and the blanking plate or fabricated surround that sits neatly inside the recess for the scoop fits well enough that it cuts out the vast majority of engine heat. For those with a bonnet scoop like me and you that don\'t have a TMIC since we\'re EGI\'s, especially when driving is an awesome cold air solution, just make sure it\'s filtered or meshed at some point in the system since it\'s coming directly into the scoop.
Title: EGi Cone filter install advice?
Post by: Lacey on April 22, 2011, 05:36:35 PM
Sorry for my arse handwriting, this sort of basic principal, also sorry for the pic being sideways, it was the right way up when I uploaded it! T_T

(http://img585.imageshack.us/img585/7293/img0958r.jpg)
Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 07:02:59 PM
that\'s a good idea... will have to do some experimenting though, I suppose 2 weekends of bank holidays should be enough time... I\'ll get on it and see what I can do...

A couple of initial problems to start off with...

the fabrication work will need to be held in place somehow, will have to see if I can run any brackets off the bolts surrounding the UIM

the AFM will still need to be incorporated into the design, but, that I may be able to incorporate it into the base of the fabrication design... I\'ll make a few (bad) drawings
Title: EGi Cone filter install advice?
Post by: Lacey on April 22, 2011, 07:17:53 PM
Can\'t be as bad as mine! :p lol

Also if you\'re looking for mounting, look at the setup of the T-II\'s at Brooks on sunday and see where everything on those are mounted to, since the fabrication of the bit that sits in the scoop will probably use very similar mountings as a TMIC, so standard TMIC modified ti fit over the EGI top header intake might work quite well!
Title: EGi Cone filter install advice?
Post by: Skifledanabit on April 22, 2011, 07:18:18 PM
Just looking under the bonnet now... It\'s possible, but the stock afm won\'t fit, will need a custom jobbie, it could be mounted on top of the UIM, but it will have to literally sit on it, and be half the height to fit under the stock bonnet scoop.

Mesh the detachable part of the scoop to stop large debris, source or find a smaller filter element to sit on top of the AFM, then run a flexible tube at a hairpin down to the UIM.

I\'m not sure how much that\'s going to restrict the air flow though.
Title: EGi Cone filter install advice?
Post by: m1tch on April 22, 2011, 07:31:13 PM
A better intake would be to run an intake down inside the inner driver wing and pick up some air from the brake cooling ducts :)
Title: EGi Cone filter install advice?
Post by: Lacey on April 22, 2011, 08:03:45 PM
True, but the thing I was thinking of is that since both Skiffy and myself have the T-II bonnet than the scoop would be awesome to make use of! Especially the ammount of air that thing would pull into the CAI system at normal driving speeds!
Title: EGi Cone filter install advice?
Post by: dthebuk on April 22, 2011, 08:25:41 PM
retro boy G had my old adaptor, he might still have it?

panel filters are pretty good though