Cold Air Intake Air Box
03-14-08, 07:35 PM
#1
Full Member
Thread Starter
Join Date: Jan 2004
Location: gatineau, Quebec, canada
Posts: 235
Likes: 0
Received 0 Likes
on
0 Posts
Cold Air Intake Air Box
Hi everybody, thinking of a little project here. for the 1987 N/A.
I have the K&N Filter Cold Air Intake Kit..and I was wondering if anybody knows or had any experience with Mariah Cold Airbox Kit 1986-1992 Turbo II & Non-Turbo.
Here's the link...
http://www.mariahmotorsports.com
Any feedback is appreciated..
Regards
Xtreise
I have the K&N Filter Cold Air Intake Kit..and I was wondering if anybody knows or had any experience with Mariah Cold Airbox Kit 1986-1992 Turbo II & Non-Turbo.
Here's the link...
http://www.mariahmotorsports.com
Any feedback is appreciated..
Regards
Xtreise
03-15-08, 01:05 PM
#2
Can Post Only in New Member Section
iTrader: (2)
Join Date: Jul 2004
Location: Calgary, Canada
Posts: 930
Likes: 0
Received 0 Likes
on
0 Posts
thats the most over priced piece of sheet metal i've ever seen. i made something like this last year a realised that there are no paths for air to get into this box, hence the intake duct other the rad. to make it work well u'd have to take some rubber off the bottem of the hood, but then u risk having water (rain, puddles etc) getting on to your filter which u can assume is a bad idea.
03-15-08, 05:52 PM
#4
Yeah, it is semi-functional, but it is WAY overpriced.
Here's the issue with the design: It's a heat shield, not a cold air box. Sure, it will limit the amount of hot air around the filter, but there is no way for actual fresh air to get into the area surrounding the cone filter. The tube above the rad shroud works ONLY for the stick system. The stock box is sealed, so air is sucked through that snorkel. By having a non sealed box around the filter, there is no suction any more. The only way air will make it through that snorkel is if the air travels through a myriad of bends up the front of the rad and into the stock intake location. It just isn't enough as air always follows the path of least resistance. The same can be said about the headlight vents. There is no way enough fresh air will make it through there to be useful.
The cheapest and easiest thing is to build your own. With a bit of patience and skill, you can have a really effective one. If you want to make a proper cold (fresh) air box, then you need it to do 2 things: Shield head from the engine bay and bring in outside air. I built my own a few years back where I ducted cold air up from under the front bumper:
Here is the thread of how I built it:
https://www.rx7club.com/showthread.p...0&page=5&pp=15
There are 6 pages, but the photo links on page one died so I reposted everything about it on page 5. Enjoy!
Here's the issue with the design: It's a heat shield, not a cold air box. Sure, it will limit the amount of hot air around the filter, but there is no way for actual fresh air to get into the area surrounding the cone filter. The tube above the rad shroud works ONLY for the stick system. The stock box is sealed, so air is sucked through that snorkel. By having a non sealed box around the filter, there is no suction any more. The only way air will make it through that snorkel is if the air travels through a myriad of bends up the front of the rad and into the stock intake location. It just isn't enough as air always follows the path of least resistance. The same can be said about the headlight vents. There is no way enough fresh air will make it through there to be useful.
The cheapest and easiest thing is to build your own. With a bit of patience and skill, you can have a really effective one. If you want to make a proper cold (fresh) air box, then you need it to do 2 things: Shield head from the engine bay and bring in outside air. I built my own a few years back where I ducted cold air up from under the front bumper:
Here is the thread of how I built it:
https://www.rx7club.com/showthread.p...0&page=5&pp=15
There are 6 pages, but the photo links on page one died so I reposted everything about it on page 5. Enjoy!
03-15-08, 10:27 PM
#6
Retired Moderator, RIP
iTrader: (142)
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes
on
114 Posts
NICK86..Exactly what I was thinking on Doing..The Way I was thinking On Getting Cold air was to use the Brake vent on the Passenger Side and "tap into it"..the HOLE is already there Under the old stock box,so I intended on using that hole For a good purpose!
03-16-08, 01:56 AM
#7
Xtreise - search the second gen technical forum - there are tons of designs and ideas for cold air boxes in there - you should be able to find something pretty easily!
Trending Topics
03-22-08, 04:58 PM
#11
08-09-08, 12:15 AM
#14
@ pipnorcali
09-23-11, 09:29 PM
#15
S4 Love
Join Date: Aug 2011
Location: Bay Area, California.
Posts: 119
Likes: 0
Received 0 Likes
on
0 Posts
I have a question.
On the turbo model (I have the 87 turbo ii), the stock airbox has a small hose attached to it on the back. Where did you place that little hose when you took off the airbox? I see you've used an adapter in-between the AFM and the filter.
I'm thinking about doing the same thing as you did but I don't know where
that little hose (about 1" diameter) goes afterwards.
Thanks =D
On the turbo model (I have the 87 turbo ii), the stock airbox has a small hose attached to it on the back. Where did you place that little hose when you took off the airbox? I see you've used an adapter in-between the AFM and the filter.
I'm thinking about doing the same thing as you did but I don't know where
that little hose (about 1" diameter) goes afterwards.
Thanks =D
Thread
Thread Starter
Forum
Replies
Last Post
