Top mount air filter options? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 01-16-2009, 01:36 AM   #1
Junior Member
Thread Starter
 
Join Date: Oct 2007
Location: Staten Island, NY
Posts: 159
Total Cats: 0
Default Top mount air filter options?

I bought a generic mushroom filter to stick on the end of my T25 which is sitting atop an HKS manifold. It looked great, until I tried to close the hood, which resulted in FAIL. I need something that's a smaller diameter without having to resort to using plumbing. Bear in mind I'm keeping the a/c and power steering.

I'm looking at this:
RB-0900 - K&N Universal Air Filters, Universal Rubber Filter

which seems like it might be slightly smaller than what I've got now (I honestly haven't measured mine yet).

Air Filter Media

What's everyone else doing?
anarchyx34 is offline   Reply With Quote
Old 01-16-2009, 03:13 AM   #2
Elite Member
iTrader: (7)
 
Join Date: Jan 2007
Location: Renton Washington
Posts: 1,742
Total Cats: 3
Default

i have no PS/AC so i run my intake right near the sway bar to get some cold air from the underside
SKMetalworks is offline   Reply With Quote
Old 01-16-2009, 03:34 AM   #3
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,174
Total Cats: 2,575
Default

Quote:
Originally Posted by sbkcocker499 View Post
i have no PS/AC so i run my intake right near the sway bar to get some cold air from the underside
behind the radiator??????
18psi is offline   Reply With Quote
Old 01-16-2009, 08:21 AM   #4
Elite Member
iTrader: (17)
 
Join Date: May 2007
Location: NY
Posts: 1,614
Total Cats: 2
Default

^that's exactly what I was thinking
TonyV is offline   Reply With Quote
Old 01-16-2009, 10:04 AM   #5
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,840
Total Cats: 1,786
Default

I've heard 90 bends are handy-dandy.
Braineack is online now   Reply With Quote
Old 01-16-2009, 11:01 AM   #6
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,236
Total Cats: 288
Default


I think the trick solution is a 90 to behind the headlight, shield airbox and fresh air port drilled under the headlight (3" or so hole, or multiple smaller holes) with shielding under it in the fender to keep out the bad stuff. Here's the spot- just ahead of the rubber 90 outside of the airbag module.


But I've got real space issues. I thought running the IC pipe through the fender was a good idea to remove it from the heat, but of course that ate up space for the air filter and cold air box. Somebody post up the typical proper solution!
m2cupcar is offline   Reply With Quote
Old 01-16-2009, 11:25 AM   #7
Elite Member
iTrader: (46)
 
Stein's Avatar
 
Join Date: Dec 2007
Location: Nebraska
Posts: 4,812
Total Cats: 138
Default

Quote:
Originally Posted by m2cupcar View Post
:

But I've got real space issues. I thought running the IC pipe through the fender was a good idea to remove it from the heat, but of course that ate up space for the air filter and cold air box. Somebody post up the typical proper solution!

This is exactly what I am planning to do this weekend. Where you have the black 90 is where my IC has a cast 90 elbow pointing down so I need to rotate the black 90 in your pic UP. No issues with tire clearance at full lock, right?

My turbo is clocked up a bit more, and my turbo sits lower, so I am thinking about using almost a full 180* u bend going under the charge pipe and put the MAF and filter up by the master cylinder. I don't KNOW that everything will fit yet. I'll see this weekend. I am assuming that I have to keep the MAF on my 99.
Stein is offline   Reply With Quote
Old 01-16-2009, 11:56 AM   #8
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 8,796
Total Cats: 247
Default

Quote:
Originally Posted by m2cupcar View Post
That's a lot of badass in that pic.



Here's how I did my air filter. I have P/S and A/C too. It's not a cold air intake though. Not sure I can do a cold air intake. But it works...

patsmx5 is offline   Reply With Quote
Old 01-16-2009, 11:58 AM   #9
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,236
Total Cats: 288
Default

Stein- search for TurboTim's routing. It requires removing the fender, but it is another approach to the same idea and has way more tire clearance. AND provide more adjustability of the IC pipe to make space for the MAP in the intake routing. Mine now clears the tire rub, but it took three tries. The pipe doesn't look like the one in the photo- it comes up right at the frame rail/fender seam and follows that for a bit forward and then drops down - and sits tight against frame rail and fender.

Pat you have the same issue I do - the IC pipe is blocking the "ideal" (IMO) air source - especially on the NB since the OE air port/feed is under the light. You might be able to work something out for a box over there, but it would definitely be some work - moving the ps reservoir and adjust the IC pipe... ugh.

It's been mentioned before, but I'm afraid that w/o a good air source/box, there is a lost opportunity for some free power.
m2cupcar is offline   Reply With Quote
Old 01-16-2009, 12:02 PM   #10
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,840
Total Cats: 1,786
Default

nice sway bar mounting. zip ties do it all!
Braineack is online now   Reply With Quote
Old 01-16-2009, 12:06 PM   #11
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,236
Total Cats: 288
Default

don't forget masking tape to hold charge pipes together
m2cupcar is offline   Reply With Quote
Old 01-16-2009, 12:07 PM   #12
Elite Member
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

Name:  IMG_8788.jpg
Views: 2
Size:  10.1 KBName:  IMG_8786.jpg
Views: 2
Size:  7.0 KB
Name:  IMG_8795.jpg
Views: 2
Size:  16.8 KB

I just need me one of them fancy Begi heat shields.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 01-16-2009, 12:07 PM   #13
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,840
Total Cats: 1,786
Default

Quote:
Originally Posted by m2cupcar View Post
don't forget masking tape to hold charge pipes together
not as impressive.
Braineack is online now   Reply With Quote
Old 01-16-2009, 12:21 PM   #14
Elite Member
iTrader: (46)
 
Stein's Avatar
 
Join Date: Dec 2007
Location: Nebraska
Posts: 4,812
Total Cats: 138
Default

Quote:
Originally Posted by m2cupcar View Post
Stein- search for TurboTim's routing. It requires removing the fender, but it is another approach to the same idea and has way more tire clearance. AND provide more adjustability of the IC pipe to make space for the MAP in the intake routing. Mine now clears the tire rub, but it took three tries. The pipe doesn't look like the one in the photo- it comes up right at the frame rail/fender seam and follows that for a bit forward and then drops down - and sits tight against frame rail and fender.

Found it. https://www.miataturbo.net/forum/t15336/ I don't think it will work with my "downturned" IC. I really need to shoot the gap between the PS cooler lines. I like the idea, though. We'll see this weekend.
Stein is offline   Reply With Quote
Old 01-16-2009, 03:22 PM   #15
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

clocking the compressor freed up a lot of room in my case for a simple macaroni bend intake:

Name:  enginebaywithCOPs001.jpg
Views: 5
Size:  80.1 KB
kotomile is offline   Reply With Quote
Old 01-16-2009, 04:15 PM   #16
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,236
Total Cats: 288
Default

pipe runs like this now to avoid the rub
m2cupcar is offline   Reply With Quote
Old 01-16-2009, 04:53 PM   #17
Elite Member
iTrader: (46)
 
Stein's Avatar
 
Join Date: Dec 2007
Location: Nebraska
Posts: 4,812
Total Cats: 138
Default

Quote:
Originally Posted by m2cupcar View Post
pipe runs like this now to avoid the rub
Perfect! That's kind of what I had in mind when I held up a bend or two with the tire on and cranked. Thanks,
Stein is offline   Reply With Quote
Old 01-17-2009, 12:00 AM   #18
Elite Member
iTrader: (7)
 
Join Date: Jan 2007
Location: Renton Washington
Posts: 1,742
Total Cats: 3
Default

so wheres the best place to route cold air intake?
SKMetalworks is offline   Reply With Quote
Old 01-17-2009, 02:59 AM   #19
Supporting Vendor
iTrader: (3)
 
Join Date: Jul 2006
Location: San Diego
Posts: 2,863
Total Cats: 484
Default

There isn't necessarily one best place - anywhere that has access to cooler air as opposed to the hot air around the motor and that is not in the path of dirt/debris... there are plenty of not the best places tho - like right behind the radiator...
ThePass is offline   Reply With Quote
Old 01-17-2009, 12:25 PM   #20
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,236
Total Cats: 288
Default

Build a box around the backside of the exhaust side headlight, then put some holes through the body under the headlight to the inner fender area, OR add a turnsignal intake, or a headlight inlet. The idea is to source your air from outside the engine bay.
m2cupcar is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Moroso Air Oil Separator Catch Can Aroundcorner Miata parts for sale/trade 2 10-01-2015 04:20 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:15 PM.