Cold air intake.
05-10-2005, 01:36 PM
#1
Registered User
Thread Starter
Join Date: May 2005
Location: Island Lake Illinios
Posts: 242
Cold air intake.
I just took off my stock air box, and put on an aftermarket cold air intake, but what is the hose for under the stock airbox? can I just leave it open, what does it go to, and should I plug it? thanks guys! 
05-10-2005, 02:13 PM
#3
Registered User
Thread Starter
Join Date: May 2005
Location: Island Lake Illinios
Posts: 242
I just ran the car in the driveway, didn't go anywhere yet, and plugged that line with my hand. it didn't sound like it made any difference, but It was sucking air into somewhere. looks like it goes either to the bottom of the engine or the trans. I have a 1980 280zx with auto. trans.
05-10-2005, 03:45 PM
#4
Registered User
Join Date: Mar 2004
Posts: 579
It goes to the bottom of the engine. The '79 and '80 ZX had those hoses but the '81-'83 ZX did not have them. The hose connects to a small black box thing and then connects to the bottom of the intake manifold or maybe it connects the the PCV, I can't remember. Anyway, try tracing it and blocking it at the source and then get rid of that stupid hose.
05-10-2005, 06:13 PM
#5
Registered User
Thread Starter
Join Date: May 2005
Location: Island Lake Illinios
Posts: 242
so it does nothing for performance, gas mileage, cooling,...It's gone first thing tommarow morning! I did go out and test it with that hose just kinda danglin, and at low rpm, there wasn't a big change, but between 2500 and 4000 rpm, it was night and day!
05-11-2005, 07:09 AM
#7
Registered User
Thread Starter
Join Date: May 2005
Location: Island Lake Illinios
Posts: 242
Originally Posted by DoTheDrew888
It would probably be a good idea to put a breather on where ever the hose connected to the engine.
05-11-2005, 12:03 PM
#8
Registered User
Join Date: Aug 2004
Location: Layton, UT
Posts: 788
I know Pep Boys and / or AutoZone have small breathers like that ... and they're relatively cheap.
If you want to ghetto it up [probably not reccomended], I would suggest getting some cotton filter material or something and wrapping it around the end of the hose. Be sure to clamp it on so it won't fall off and get ish in the hose.
If you want to ghetto it up [probably not reccomended], I would suggest getting some cotton filter material or something and wrapping it around the end of the hose. Be sure to clamp it on so it won't fall off and get ish in the hose.
05-12-2005, 07:16 PM
#9
Registered User
Thread Starter
Join Date: May 2005
Location: Island Lake Illinios
Posts: 242
for a temporary fix I put some cheese cloth, AKA cotton mesh that doesn't have fibers that fall off, around the end and used the existing hose clamp around it. I'll check pep boys this weekend. thanks guys!
Thread
Thread Starter
Forum
Replies
Last Post
Bookmarks
